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VOLUME 3, ISSUE 8, AUGUST 2015
Applicated on a loss of hybrid transformer winding for multi-output high frequency (300W) LLC resonance converters
HeungGyoon (Harry) Choi, KyuSun Chung, Ge Li
Smart Transformer using Advanced Metering Infrastructure (AMI) and Advance Sensor Infrastructure (ASI)
Geeta Velhal, Avani Pujara, Vaishali Velhal, Dr S.M.Bakre, Dr V.Muralidhara
An Investment Grade Audit on Proposed Rice husk Power Generation in rural part of Belagavi, India
S. B. Halbhavi, S. G. Kulkarni, Prof. Vani P. Datar
SLM and PTS Method with Clipping for Reducing Complexity of PAPR Reduction in OFDM
Khyati Keyur Desai
Management of a Deregulated Power System with Voltage Stability Problem: Particle Swarm Optimisation Approach
S.Ramu, P.Sridhar Reddy, B.Shankar
A Comparative Study of E-Learning Technique with Traditional Teaching Techniques
Sunita Gaur, Archana Chaudhary, Mithilesh Mittal
Evaluation of Fault Voltage and Current in a Symmetric Power System Network
K.Seetharamayya, M.Venkateswara Rao
Role of Modern Flue Gas Analyser in a Thermal Power Plant to Monitor & Control Efficient Combustion Process & Improve Carbon footprint
Sugata Bandyopadhyay
Performance Monitoring of Transformer Parameters
P.M. Sneha Angeline
Energy Auditing: A Walk through Survey of Library Building of Institute to Reduce the Lighting Cost
S. B. Halbhavi, Vani P. Datar, S. G. Kulkarni, Shambhavi Patil and Pallavi S. Terani
DSTATCOM with Artificial Intelligent Controller for Voltage Sag Mitigation
T.Divya Sree, M.Devi Shankar
Torque Response Improvement of Direct Torque Controlled Three-Phase Inverter Fed Induction Motor Drive
Deepa Francis, Tomson Thomas, Shanooga Chandran
Five Level Output Generation for Hybrid Neutral Point Clamped Inverter Using Sampled Amplitude Space Vector PWM
Honeymol Mathew
High Frequency Fed Unity Power Factor AC-DC Converter For Wireless Power Transfer Applications
Rose Maria Alex, Ginu Ann George
A Simple and Fast Method to Generate Transmit Beampattern in MIMO Radar
Mostafa Bolhasani, Sadjad Imani, Seyed Ali Ghorashi
Motoring Protection Model Implementations and Simulations for Generator Protection
Subrahmanya K. Devadig, K. S. Aprameya
Implementation of Ghosting Effects in 3D Dual-View Projection System
B. Leena Priyanka, T. Seshagiri
A Review Paper on A 10 Bit, Low Power ADC Suitable for Wireless Application
Mr. Prabhao Fulzele, Prof. K. Pitambar Patra
Effect of TCSC on Line Voltage Stability Indices under Single Line Outage Condition
Merlyn Mathew, D. Suresh Babu, P.S.Venkataramu, M.S.Nagaraj
Optimal DG Placement using Multi Objective Firefly Optimization with Eco-Technical Considerations
Abhishek Kumar, Dr.Naresh Kumar
Implementation of a 32 bit RISC processor with memory controller by using VHDL
Sd. Ameerunnisa Begum, Dr. M. Sailaja
Digital Watermarking of Video using DWT, PCA and Arnold Scrambling Technique applied on a Binary Watermark.
Temshichang Jongko, Jeebananda Panda, Asok Bhattacharyya
Recognition and Authentication by Biometric Techniques
Deepali H. Shah, Tejas V. Shah, J. S. Shah
Automatic Tariff Calculation with Wireless Energy Meter
S.Rama Devi, C.Srujana
Modeling of Photovoltaic array in MATLAB
Hinaxi Patel, Kedar Patil
Simulation Performance of PID Controller for Higher Order System
Puneet Vithal, Pankaj Mohindru, Pooja
Automatic Load Frequency Control in Three Area Power System using PID Controller
Shallu Sharma, Jitendra Bhadoriya
Abstract
Applicated on a loss of hybrid transformer winding for multi-output high frequency (300W) LLC resonance converters
HeungGyoon (Harry) Choi, KyuSun Chung, Ge Li
DOI: 10.17148/IJIREEICE.2015.3801
Abstract: With a growing concern over environmental issues, smaller and more energy efficient electronic devices continue to draw attention. Usually, high frequency has more advantages in making switching power smaller. A number of suppliers have already launched single-output power (single or double-digit W) which can be operated in high frequency (higher than 500kHz.) Despite increasing demand for multi-output high-capacity power, it is not easy to operate this power in high frequency. Reducing the loss of both switching components and transformer winding holds great significance in high frequency operation. This abstract is written to suggest a new transformer structure for multi- output (300W) high-frequency (500kHz) operation as well as present mathematical analysis and test results on the loss of transformer winding operated in high frequency. This suggestion can lead to approximately 40% of transformer size reduction compared to the existing one operated in 100kHz
Keywords: High frequency; Hybrid transformer; Multi-output; LLC resonance converter
Keywords: High frequency; Hybrid transformer; Multi-output; LLC resonance converter
Abstract
Smart Transformer using Advanced Metering Infrastructure (AMI) and Advance Sensor Infrastructure (ASI)
Geeta Velhal, Avani Pujara, Vaishali Velhal, Dr S.M.Bakre, Dr V.Muralidhara
DOI: 10.17148/IJIREEICE.2015.3802
Abstract: Transformer is one of the sensitive components of the smart grid. The transformers already installed, will be in service for next 25 years .Very few transformers have ability to sense the parameters like voltage, current, and temperature. The next generation of transformers will require implementation of remote monitoring of a system parameters and wide range of transformers. Online transformer monitoring using advanced metering infrastructure (AMI), Advance Sensor infrastructure (ASI) is necessary for efficient operation of the smart grid. An AMI system can be effectively used as a low-cost distribution transformer monitor. The safety of the transformer plays a vital role in smooth operation of a smart grid. Dissolved gas analysis, use of vegetable oil-based dielectric coolants, ensures reliability and safety respectively of the transformer operation. Now a days many transformer manufacturers are incorporating the real time monitoring of the temperature, pressure, vacuum especially for step up transformers. Real time monitoring system consists of embedded system, GSM modem, mobile-users and GSM networks and sensors installed at transformer site. Features of Solid State Transformer (SST), Bidirectional Intelligent Semiconductor Transformer (BIST) for smart grid applications are discussed in this paper. Also, the different ways for improving efficiency of the smart grid by ensuring the safety of the transformer are focused.
Keywords: Advanced metering Infrastructure (AMI), Solid State Transformer (SST), Bidirectional Intelligent Semiconductor Transformer (BIST).
Keywords: Advanced metering Infrastructure (AMI), Solid State Transformer (SST), Bidirectional Intelligent Semiconductor Transformer (BIST).
Abstract
An Investment Grade Audit on Proposed Rice husk Power Generation in rural part of Belagavi, India
S. B. Halbhavi, S. G. Kulkarni, Prof. Vani P. Datar
DOI: 10.17148/IJIREEICE.2015.3803
Abstract: Energy demand is increasing exponentially in the developing countries like India due to rapid growth in population and industrial development. Conventional energy sources are depleting at a higher rate hence there is a search to look for different alternatives for electrical energy production. India is one of the world's largest producers of rice, accounting for 20% of all world rice production. Approximately 120 million tons of rice is produced every crop year. More than 60% this is processed in local rice mill and producing rice husk as waste biomass. Husk was primarily used for steam production for parboiling and drying process of rice. Rice husk based biomass plant can be an alternate source to meet electricity demand. Since availability of rice husk cannot be predicted instead of using only rice husk as fuel a mixture of biomass can also be used. In this paper proposal for rice husk based power generation and energy audit to recover the investment is discussed.
Keywords: Rice husk, green electricity, steam engine, energy audit.
Keywords: Rice husk, green electricity, steam engine, energy audit.
Abstract
SLM and PTS Method with Clipping for Reducing Complexity of PAPR Reduction in OFDM
Khyati Keyur Desai
DOI: 10.17148/IJIREEICE.2015.3804
Abstract: Orthogonal frequency division multiplexing (OFDM) also referred as multicarrier communication systems, have become a key technology in current and for future communication systems. Due to OFDM’s immunity to many channel imperfections, it is the ideal modulation scheme for many applications which transmit signals in hostile envi- ronments. A major drawback of OFDM is the high peak-to-average-power ratio (PAPR) problem, which can lead to low power efficiency and nonlinear distortion at the transmitter power amplifier. Selected mapping (SLM) and Partial transmit sequences (PTS) are powerful and distortion less peak power reduction schemes for OFDM. Both reduce the PAPR by generating alternative subcarrier vector that are statistically independent OFDM symbols for a given data frame and transmitting the symbol with the lowest peak power. As we increase alternative subcarrier vector, PAPR still reduces but computational complexity also increases. In this paper the technique of clipping is used in conjunction with SLM and PTS to reduce computational complexity.
Keywords: Orthogonal frequency division multiplexing (OFDM), Peak-to-Average Power Ratio (PAPR), Clipping Ratio (CR), Selected mapping (SLM), Partial transmit sequences (PTS).
Keywords: Orthogonal frequency division multiplexing (OFDM), Peak-to-Average Power Ratio (PAPR), Clipping Ratio (CR), Selected mapping (SLM), Partial transmit sequences (PTS).
Abstract
Management of a Deregulated Power System with Voltage Stability Problem: Particle Swarm Optimisation Approach
S.Ramu, P.Sridhar Reddy, B.Shankar
DOI: 10.17148/IJIREEICE.2015.3805
Abstract: This paper presents and utilizes an Improved Particle Swarm Optimization algorithm (IPSO) for reactive power management in restructured power systems. Reactive power procurement is modeled as a Security Constraint Optimal Power Flow (SCOPF), which incorporates a voltage stability problem. This is a major concern in power system control and operation. The model attempts to minimize the cost of reactive power procurement and energy losses as a main objective, while the technical criteria and voltage stability margin, especially, are treated as soft constraints. From a mathematical point of view, the reactive power market can be expressed as a nonlinear non-convex optimization problem with multi-local minima. In most cases, the non-convexity results in a failure of the mathematical-based optimization algorithm to _nd the global optimum. Thus, the PSO, a powerful heuristic searching algorithm, is developed and implemented to _nd the global optimum of the reactive power market objective function. The feasibility of the methodology (IPSO) is tested over an IEEE30 bus system, while the obtained simulation results are compared with the gradient-based approach, using General Algebraic Modeling System (GAMS) software, the original PSO and another evolutionary programming called a Genetic Algorithm (GA). The results demonstrate that the IPSO can converge to better feasible solutions with less iteration and can be successfully used for reactive power scheduling in deregulation environments.
Keywords: Particle Swarm Optimization algorithm (IPSO), General Algebraic Modeling System (GAMS), Genetic Algorithm (GA).
Keywords: Particle Swarm Optimization algorithm (IPSO), General Algebraic Modeling System (GAMS), Genetic Algorithm (GA).
Abstract
A Comparative Study of E-Learning Technique with Traditional Teaching Techniques
Sunita Gaur, Archana Chaudhary, Mithilesh Mittal
DOI: 10.17148/IJIREEICE.2015.3806
Abstract: E-learning System has been an increasing focus as a vital teaching method for more than a decade. This paper focuses upon a comparative study of E-learning teaching techniques with traditional teaching techniques. The feedback from different user groups –students, researchers, teachers and staff is considered for traditional teaching techniques and e-learning based teaching techniques. The tools used showed the effectiveness of e-learning techniques over traditional teaching methods. The study showed that e-learning techniques attained high positive feedback for e- learning techniques as compared to traditional teaching methods for all the user categories.
Keywords: E-learning, Web Guru, Traditional learning.
Keywords: E-learning, Web Guru, Traditional learning.
Abstract
Evaluation of Fault Voltage and Current in a Symmetric Power System Network
K.Seetharamayya, M.Venkateswara Rao
DOI: 10.17148/IJIREEICE.2015.3807
Abstract: The subject of Evaluation of Fault voltages and currents in a power system network is very important part of power system analysis for stable and economical operations of a Power System. The main objective of the short circuit fault analysis is to simulate short circuit faults on different buses of a power system network and to estimate the state of the power system before and after a fault, which includes various bus voltages and current flow on various transmission lines. The analysis of power systems under faulted condition provides information regarding circuit breaker selection, relay setting, and the stability of the systems operation. Two different MATLAB based programs were written; one program was for Load Flow Studies to determine the pre-fault conditions based on Newton-Raphson method, while the other was for three-phase short-circuit studies. It was observed that the fault currents were mostly excessively high. In this paper, three-phase symmetrical fault was simulated on the standard IEEE 6 bus and IEEE 30 bus system and fault voltage and fault current level is calculated and short circuit MVA rating for the circuit breaker has been chosen.
Keywords: Evaluation of fault analysis, NR method, symmetrical fault (LLL) calculation, short circuit MVA.
Keywords: Evaluation of fault analysis, NR method, symmetrical fault (LLL) calculation, short circuit MVA.
Abstract
Role of Modern Flue Gas Analyser in a Thermal Power Plant to Monitor & Control Efficient Combustion Process & Improve Carbon footprint
Sugata Bandyopadhyay
DOI: 10.17148/IJIREEICE.2015.3808
Abstract: The concern for Global Warming and Climate change had already made a social impact in the planet earth & corporate strategy on mitigating plan need to be adopted to restore ecological balance & our sustainability. While any economic growth is associated with Industrial developments , which will trigger a new concern to the environment , innovative adoption of various energy efficient processes will ensure better Carbon foot print. In India for any sustained growth the requirement of Power will always increase & new Power Stations need to be set up . While setting up Power stations considerations need to be given for selecting appropriate technology, size & selection of energy efficient process and equipment, optimize the combustion process .Role of analysers for measurement and control plays a major role to optimize the process operation & reducing fuel and energy wastages . Further selection of the appropriate technology for analyser , proper installation practices & control strategy based on the analysis and its response time are the key considerations for successfully implementing automatic combustion Control . This paper aims to describe the challenges in the selection of the appropriate gas analysers for the measurement based on the various technological versions , the analysis of the result & implementation of control to improve Carbon Foot Print .
Keywords: GHS, FGD.
Keywords: GHS, FGD.
Abstract
Microgrid Control in Distribution System Using Fuzzy Logic Technique
Patti.Ranadheer
DOI: 10.17148/IJIREEICE.2015.3809
Abstract: A micro grid consists of cluster of loads and distributed generators that operate as a single controllable system. As an integrated energy delivery system micro grid can operate in parallel with or isolated from the main power grid. The micro grid concept introduces the reduction of multiple reverse conversions in an individual AC or DC grid and also facilitates connections to variable renewable AC and DC sources and loads to power systems. The interconnection of DGs to the utility/grid through power electronic converters has risen concerned about safe operation and protection of equipment’s. To the customer the micro grid can be designed to meet their special requirements; such as, enhancement of local reliability, reduction of feeder losses, local voltages support, increased efficiency through use of waste heat, correction of voltage sag or uninterruptible power supply. In the present work the performance of hybrid AC/DC micro grid system is analyzed in the grid tied mode. Here photovoltaic system, wind turbine generator and battery are used for the development of micro grid. Micro grid advantages can be cited as follows: The need for additional suppliers felt due to the rapid growth of load and fossil fuels reduction. Establishing new power generating sources will reduce environmental pollution and global warming. Distributed generation (DG) sources make it easy to combined heat and power (CHP) which increases its efficiency by reducing losses. The resources are suitable for consumers with low capacity. A small hybrid grid has been modeled and simulated using the Simulink in the MATLAB.
Keywords: Energy management, grid control, grid operation, hybrid micro grid, PV system, wind power generation.
Keywords: Energy management, grid control, grid operation, hybrid micro grid, PV system, wind power generation.
Abstract
AGC Tuning of an Inter-Connected Power System after Deregulation Using PSO
S. Rout, K. Panda
DOI: 10.17148/IJIREEICE.2015.3810
Abstract: Automatic generation control (AGC) of an inter-connected power system provides power demand signals for AGC power generators to control frequency and tie-line power flow due to the large load changes or other disturbances. Occurrence of large megawatt imbalance causes large frequency deviations from its nominal value which may be a threat to secure operation of power system. It is important to suppress the disturbances by the coordination of governor systems .So, it is necessary to use secondary controller to increase the stability and performance of the AGC system. This paper provides an overview for the researcher of control strategies, as well as their current use in the field of AGC problem using Particle Swarm Optimization (PSO). The proposed PSO based controller is compared against conventional I-controller and the performance of the proposed controller is found better than the conventional method. Simulations have been performed using Matlab.
Keywords: AGC (Automatic Generation Control), Deregulated Power System, Particle Swarm Optimization (PSO), PID Controller, Area Control Error (ACE).
Keywords: AGC (Automatic Generation Control), Deregulated Power System, Particle Swarm Optimization (PSO), PID Controller, Area Control Error (ACE).
Abstract
Performance Monitoring of Transformer Parameters
P.M. Sneha Angeline
DOI: 10.17148/IJIREEICE.2015.3811
Abstract: Transformers are basic design of electrical device which provide power transmission by transforming induced current from one circuit to another. They have complexity in measuring and monitoring the electrical parameters manually. A system is proposed to measure the parameters using sensors and take the corrective measures when there is a malfunctioning in the system. The real time controlling is done on the basic features like gas level, oil level. These features are essential for effective power transmission and long life of industrial transformers. The monitoring and control of the transformer is done by using PIC microcontroller, RF transmission for wireless communication and sensors which check the level of gas, and oil. The design is to sense the features of transformer and send the information regularly to the controller, the controller in turn will makes the transmission through RF to the client. So, this design makes possible to attain real time control and monitoring of parameters.
Keywords: Gas Level, Oil Ageing, Wireless Communication, Microcontroller.
Keywords: Gas Level, Oil Ageing, Wireless Communication, Microcontroller.
Abstract
Energy Auditing: A Walk through Survey of Library Building of Institute to Reduce the Lighting Cost
S. B. Halbhavi, Vani P. Datar, S. G. Kulkarni, Shambhavi Patil and Pallavi S. Terani
DOI: 10.17148/IJIREEICE.2015.3812
Abstract: This paper presents simple walk though energy audit for the lighting load of library section of educational institution. Lighting is a major load in case of educational institution particularly in library section. Lighting is an area which provides a major scope for achieving energy efficiency at the design stage by using the modern energy efficient lamps. Innovation and continuous improvements in lighting design has given big energy saving options. Implementation of energy audit can reduce the wastage of energy and gives good practice of energy conservation. In this paper library loads have been surveyed tabulate, energy saving measures is analyzed involves the replacement of low efficient lighting by high efficient lighting. The outcome of evaluation namely annual consumption reduction, greenhouse gas reduction and payback period is presented.
Keywords: Energy audit, lighting, payback period, energy conservation.
Keywords: Energy audit, lighting, payback period, energy conservation.
Abstract
DSTATCOM with Artificial Intelligent Controller for Voltage Sag Mitigation
T.Divya Sree, M.Devi Shankar
DOI: 10.17148/IJIREEICE.2015.3813
Abstract: Fault at Distribution level cause transient voltage sag in entire system or large part of it. Disturbances such as voltage sag, swell, short duration interruption, transient and harmonic occurs. Fault on 11Kv system or at load point affects voltage profile of other feeders. Unsymmetrical fault effect on distribution line and voltage restoration using DSTATCOM which is a custom power device. This paper deals with Fuzzy logic controller implemented for the distributed system. The proposed method is implemented by using MATLAB/SIMULINK.
Keywords: DSTATCOM, Voltage sag, FIS, MATLAB SIMULINK.
Keywords: DSTATCOM, Voltage sag, FIS, MATLAB SIMULINK.
Abstract
Site Selection for Wind Farm Installation
G.C.Biswal, S.P.Shukla
DOI: 10.17148/IJIREEICE.2015.3814
Abstract: Wind energy offers significant potential for near-term (2020) and long-term (2050) greenhouse gas (GHG) emissions reductions. A number of different wind energy technologies are available across a range of applications, but the primary use of wind energy of relevance to climate change mitigation is to generate electricity from larger, grid- connected wind turbines, deployed either on- or offshore. On land as well as the Off-shore both are the possible choice for the wind farm developers. The off shore wind farms are considered better over the onshore counterpart due to various regions. They have more wind potential as it has stronger and more consistent wind profile. Among different criterions the selection of site is the first step for the wind farm developers. Various techniques are used for site identification of onshore/off shore/land based wind farms. It includes installation of a wind mast for several months / years and recording of relevant data and the other method is use of geographic information system (GIS), for data collection and analysis purpose. The objective of this paper is to apply the developed algorithms for selection of appropriate location for the installation of wind turbines. Matlab software (version R2011b) has been used for the implementation of the algorithm. The results are presented in graphical form and analyzed suitably.
Keywords: Site Selection, Geographic Information System, Wind Turbine.
Keywords: Site Selection, Geographic Information System, Wind Turbine.
Abstract
Torque Response Improvement of Direct Torque Controlled Three-Phase Inverter Fed Induction Motor Drive
Deepa Francis, Tomson Thomas, Shanooga Chandran
DOI: 10.17148/IJIREEICE.2015.3815
Abstract: Induction motors (IM) play a very important role in both daily life and industry, because of its reduced price, reliability in functioning and less requirement for maintenance. The IM drives controlled with the vector control method is widely used in industry. However, this control technique requires complex coordinate transformation, inner current control loop and accurate system parameters. But in Direct Torque Control (DTC) method, more accurate and speedy torque response is offered without such coordinate transformations, PWM pulse generation and current regulators. The speed controller in DTC-IM drive usually employs the conventional PI controller. But it has characteristic of non-linear saturation, which will make the control performance of the drive much poor. In order to enhance the drive performance, Anti-Windup PI controller is introduced which distinctly control the integral state by feed backing the output of the integrator to the input port of the integrator according to whether the controller output is saturated or not, which allows the system leave saturation soon, resulting in reduced overshoot and settling time of the system. This paper implements the DTC technique for voltage source inverter fed induction motor drive with the speed controller realized both using conventional PI and anti-windup PI controllers and the improved torque response is verified using MATLAB.
Keywords: Induction Motor, Vector Control, Direct Torque Control, PI Controller, Anti Windup PI Controller.
Keywords: Induction Motor, Vector Control, Direct Torque Control, PI Controller, Anti Windup PI Controller.
Abstract
Five Level Output Generation for Hybrid Neutral Point Clamped Inverter Using Sampled Amplitude Space Vector PWM
Honeymol Mathew
DOI: 10.17148/IJIREEICE.2015.3816
Abstract: A space vector pulse width modulation signal generation for the five level hybrids neutral point clamped inverter using only the sampled amplitude of the reference phase voltage is proposed in this paper. This Pulse widthmodulation scheme generation in the inverter leg switching times, from the sampled reference phase voltage amplitude and centers the switching times for the middle vectors in a sampling interval. This PWM technique does not require any sector identification and it reduces the computational time compared with the conventional space vector pulse width modulation technique. In this technique the centering of the middle inverter switching of the SVPWM is achieved by the addition of the offset time signal to the inverter gating signal, derived from the sampled amplitude of the reference phase voltage.
Keywords: Neutral Point clamped multilevel inverter, SPWM, Sampled Amplitude Space Vector PWM Signal Generation.
Keywords: Neutral Point clamped multilevel inverter, SPWM, Sampled Amplitude Space Vector PWM Signal Generation.
Abstract
High Frequency Fed Unity Power Factor AC-DC Converter For Wireless Power Transfer Applications
Rose Maria Alex, Ginu Ann George
DOI: 10.17148/IJIREEICE.2015.3817
Abstract: Wireless power transfer over near to midrange distances have been receiving much attention owing to their potential applications such as biomedical implants, charging pad platforms for mobile devices and electric vehicle recharging. The newest technologies mostly depend on inductive coupling techniques to transmit power between transmitting and receiving coils. Wireless power transfer (WPT) receivers are devices that can transmit power to electrical devices without any wired connections. But there is a lack of research targeting the optimal design of the power converter at the receiver side. The novel scheme presents a power converter and its control circuit for high frequency fed AC to DC conversion for wireless power transfer. Wireless power transfer is achieved via resonant inductive coupling between the transmitting and receiving coils. Based on the resonant technique, the input current is shaped to be sinusoidal and is forced to follow the high-frequency sinusoidal input voltage so as to achieve unity power factor. A control scheme is also proposed for the converter which can be realized by simple operational amplifiers and digital logic gates. The distinctive features of this converter are favourable for future high-frequency AC power transfer system operating in the range from a few hundred kHz to the MHz range.
Keywords: Wireless Power Transfer (WPT), magnetic resonant coupling, Power Factor (PF) correction, High frequency converter.
Keywords: Wireless Power Transfer (WPT), magnetic resonant coupling, Power Factor (PF) correction, High frequency converter.
Abstract
A Simple and Fast Method to Generate Transmit Beampattern in MIMO Radar
Mostafa Bolhasani, Sadjad Imani, Seyed Ali Ghorashi
DOI: 10.17148/IJIREEICE.2015.3818
Abstract: In this paper, we consider the problem of transmit beampattern design in multiple-input multiple-output (MIMO) radar systems. MIMO systems have the potential to dramatically improve the performance of radar systems over single antenna systems and phased array radar systems. The aim of waveform design problem is to achieve a desired beampattern or concentrating the transmit power in certain directions by designing the transmit covariance matrix. In this paper we first proposed a smiple and fast method which concentrates transmit power in interested area uniformly. This method satisfy peak to average power ratio (PAPR) practical constraint of transmit power and its PAPR is equal to one. Then we proposed an other method based on first method to decrease side lobe level (SLL) of our transmit beampattern and to achieve this goal, we employ chebyshev window in our method. However, the second method decrease SLL of the transmit beampattern, but its PAPR is not equal to one and has a low-PAPR. Simulation results validate our claims.
Keywords: multiple-input multiple-output (MIMO) radar, transmit beampattern design, minimum side lobe beampattern design, chebyshev window, covariance matrix design.
Keywords: multiple-input multiple-output (MIMO) radar, transmit beampattern design, minimum side lobe beampattern design, chebyshev window, covariance matrix design.
Abstract
Motoring Protection Model Implementations and Simulations for Generator Protection
Subrahmanya K. Devadig, K. S. Aprameya
DOI: 10.17148/IJIREEICE.2015.3819
Abstract: One of the most delicate, costlier and important component of the power system is synchronous generator and a principal requisite for the power system stability and reliability. Since synchronous generators are rotating machines and always operate in parallel with a large power system network, so they might be prone to a number of internal faults or abnormal operating conditions such as loss of field, over excitation, overvoltage, current unbalance, loss of prime mover etc. Thus, the synchronous generators need to be protected very cautiously from such types of abnormal conditions. This paper has presented the modelling, simulation and analysis of a complete motoring protection system constructed on the software MATLAB/SIMULINK® for the motoring condition of a large synchronous turbo generator.
Keywords: Synchronous Generator, Motoring Protection, Reverse Power Relay, MATLAB/SIMULINK®.
Keywords: Synchronous Generator, Motoring Protection, Reverse Power Relay, MATLAB/SIMULINK®.
Abstract
Implementation of Ghosting Effects in 3D Dual-View Projection System
B. Leena Priyanka, T. Seshagiri
DOI: 10.17148/IJIREEICE.2015.3820
Abstract: In the proposed scheme various technical options to implement 3D dual-view systems, from four frames generated by two triggered or non-triggered 3D projectors. Such a technique offers 3D free-viewpoint capabilities for two viewers. We compare two different technical implementations based on transmissive video projection and reflective silver screen, combining two different 3D encoding techniques: polarization and time multiplexing. The main objective is to analyze and mitigate the ghosting effects, as a function of the technical, modal and frame pairing choices with respect, first to the image optical quality and second to prevent visual fatigue. DUAL-VIEW is an intrinsic capability of TVs or video projectors displaying 3D contents. Dual-View TVs basically play two full HD image streams that can be tuned by the viewers wearing compatible glasses. It means that two users watching the same TV can watch different channels in full HD. In other words, the stereo pair is used to separate the streams for two different viewers. Consequently, watching 3D view requires at least four independent frames projection or display. The benefit is that 3D Dual-View enables two viewers to watch simultaneously two different 3D contents, as well as the possibility for these viewers to watch the same 3D content, but with different viewpoints, according to their location with respect to the screen. This provides the advantage of free viewpoint projection, which is not possible with conventional 3D contents.
Keywords: Active glasses, dual-view, image ghosting, passive glasses, stereoscopic vision.
Keywords: Active glasses, dual-view, image ghosting, passive glasses, stereoscopic vision.
Abstract
A Review Paper on A 10 Bit, Low Power ADC Suitable for Wireless Application
Mr. Prabhao Fulzele, Prof. K. Pitambar Patra
DOI: 10.17148/IJIREEICE.2015.3821
Abstract: This Paper presents the Design of analog to digital converter(ADC) for wireless applications, so here is the selection of right architecture is very crucial. We have chosen successive approximation Analog to Digital Converter because of their compact circuitry as compared with the Flash ADC which makes this SAR ADC inexpensive. Day By Day more and more applications are built on the basis of power consumption so this SAR ADC will be useful for high speed with medium resolution and low power consumption. The Successive Approximation (SAR) architecture is very suitable for data acquisition, it has resolutions ranging from 8 bits to 12 bits and sampling rates ranging from 50 KHz to 50 MHz.
Keywords: Successive Approximation Register (SAR),Low power, Resolution, Sampling Rate.
Keywords: Successive Approximation Register (SAR),Low power, Resolution, Sampling Rate.
Abstract
Effect of TCSC on Line Voltage Stability Indices under Single Line Outage Condition
Merlyn Mathew, D. Suresh Babu, P.S.Venkataramu, M.S.Nagaraj
DOI: 10.17148/IJIREEICE.2015.3822
Abstract: Voltage stability issues have attracted the interest of power system researchers worldwide. It is important to maintain the system stability, or else it would lead to voltage collapse and consequently complete blackout of the system. In this paper the voltage stability indices, Fast Voltage Stability Index (FVSI) and Voltage Reactive Power Index (VQILine) are used to determine the stability of a system. These indices are used to identify the most critical line and bus of the system. Under single line outage condition, effect of placing a TCSC in the system on FVSI & VQILine has been observed. An IEEE 6 bus system has been considered for simulation purpose.
Keywords: TCSC, FVSI, VQI, Enhancement Index.
Keywords: TCSC, FVSI, VQI, Enhancement Index.
Abstract
Optimal DG Placement using Multi Objective Firefly Optimization with Eco-Technical Considerations
Abhishek Kumar, Dr.Naresh Kumar
DOI: 10.17148/IJIREEICE.2015.3823
Abstract: The first contribution of this paper is to present three alternative analytical expressions to identify the location, size and power factor of a single DG unit with a goal of minimizing power losses. These expressions are easily adapted to accommodate different types of renewable DG units for minimizing energy losses by considering the time-varying demand and different operating conditions of DG units. Second objective is to minimize the cost of plantation of renewable energy source at the buses with high losses. This cost also must be minimized in coordination with losses minimization. A meta heuristic algorithm, firefly optimization is used for this purpose. Results are compared with the other metaheuristic algorithm, widely used in literature, particle swarm optimization (PSO). Comparative results in form of losses and voltage profile improvement shows effectiveness of our algorithm.
Keywords: Distributed Generation, Firefly Optimization, PSO
Keywords: Distributed Generation, Firefly Optimization, PSO
Abstract
Implementation of a 32 bit RISC processor with memory controller by using VHDL
Sd. Ameerunnisa Begum, Dr. M. Sailaja
DOI: 10.17148/IJIREEICE.2015.3824
Abstract: The design of a RISC processor with memory controller is done in this paper. For the best use of memory, this processor contains a memory module and control unit which are included in the processor design. This Processor embodies 15 basic instructions involving Arithmetic, Logical, and Data Transfer and control instructions. To implement these instructions the design incorporates various design blocks like Control Unit (CU), Arithmetic and Logic Unit (ALU), Accumulator, Program Counter (PC), Instruction Register (IR), Memory and additional logic. A new architecture is implemented for the proposed RISC processor with 32 bit input. The processor has small instruction set and control logic design is very much simplified. It is basically designed in order to achieve faster executions and the processor can execute each instruction within one clock cycle. All individual logic blocks are simulated using ModelSim Simulator and top module is obtained by connecting all the blocks in an order.
Keywords: 32 bit RISC processor, memory (RAM and ROM), Memory module and control unit, simple instruction set, faster executions.
Keywords: 32 bit RISC processor, memory (RAM and ROM), Memory module and control unit, simple instruction set, faster executions.
Abstract
Digital Watermarking of Video using DWT, PCA and Arnold Scrambling Technique applied on a Binary Watermark.
Temshichang Jongko, Jeebananda Panda, Asok Bhattacharyya
DOI: 10.17148/IJIREEICE.2015.3825
Abstract: In this paper analysis have been performed for a good trade-off between the perceptual quality of the video after watermarking and the robustness of the video against various attacks by embedding the binary watermark into the video frame. The embedding and the extraction of watermark is done in the high frequency domain of Discrete Wavelet Transform since small modifications done in this domain are not perceived by human eye. Arnold Cat Map Scrambling technique is used in the algorithm, which is applied on the binary watermark before embedding to provide some level of security. In the paper four watermarking algorithms are presented to do a comparative study. The normalized correlation and bit error is used to compute the measure of the extracted watermark. The experimental results shows high imperceptibility and high robustness against several attacks especially noisy attacks and filtering attacks in all the cases. The comparison has been shown in the result section.
Keywords: Digital Video Watermarking, Discrete Wavelet Transform, Principal Component Analysis, Arnold Cat Map.
Keywords: Digital Video Watermarking, Discrete Wavelet Transform, Principal Component Analysis, Arnold Cat Map.
Abstract
Recognition and Authentication by Biometric Techniques
Deepali H. Shah, Tejas V. Shah, J. S. Shah
DOI: 10.17148/IJIREEICE.2015.3826
Abstract: Identifying attackers is a major apprehension to both organizations as well as governments. The most used applications for prevention or detection of intrusion are based on biometric systems. Biometrics is inherently most reliable and most capable than any other traditional knowledge-based and token-based techniques. The bio stands for life and metric stands for measurement, combined together make the term "biometrics". Biometric recognition refers to an automatic recognition of individuals by determining the authenticity of a specific physiological or behavioural characteristic based on feature vector possessed by the user. The biometric authentication provides the instances of authentication in such a quick and easy manner that individuals are not bothered by the additional requirements. It is a promise of fast, easy-to-use, accurate, reliable, and less expensive authentication for a variety of applications. This paper provides an overview of the different biometric techniques with their respective inherent features.
Keywords: Biometrics, eigenfaces, principal component analysis, signature dynamics.
Keywords: Biometrics, eigenfaces, principal component analysis, signature dynamics.
Abstract
Automatic Tariff Calculation with Wireless Energy Meter
S.Rama Devi, C.Srujana
DOI: 10.17148/IJIREEICE.2015.3827
Abstract: The existing energy meter reading technology uses man power which has disadvantages like errors during calculation, absence of consumer during billing time and extra expenses for the billing process. The wireless energy meter monitoring system aims to minimize these difficulties by providing energy meter monitoring through wireless medium. Power consumed by consumer in the home side module is monitored by Electricity Board through wireless technology. This wireless technology is implemented by using ZigBee modules. This is done by using a ZigBee transceiver interfaced with both the EB (Electricity Board) section server as well as the consumer side. The Microcontroller based system continuously records the readings. These live meter readings are displayed in the LCD and also sent to the EB side through ZigBee. The EB (Electricity Board) takes the responsibility of calculating the bill with the data received from the home side, and the tariff provided by the operator and displays the same in the LCD placed in the consumer’s home by transmitting the data through ZigBee transceiver. If at all the consumer doesn’t pay the bill in allotted time, then the power supply to the home is cut down automatically using relay.
Keywords: Zigbee module, LCD, EB module.
Keywords: Zigbee module, LCD, EB module.
Abstract
Modeling of Photovoltaic array in MATLAB
Hinaxi Patel, Kedar Patil
DOI: 10.17148/IJIREEICE.2015.3828
Abstract: In this paper modeling of Photovoltaic array is done using circuit model in matlab.The single diode model is used in this paper. The procedure of finding unknown parameters of Photovoltaic array from data sheet is well explained. The iteration is listed in this paper which may helpful to verify the result with experimental data given by manufacturer data. By using only three points: open circuit, short circuit and maximum power point, the I-V (current voltage) characteristic is plotted. The atmospheric condition and effect of these conditions is clearly shown in I-V (current voltage) as well as P-V (power voltage) characteristics.
Keywords: Open circuit voltage, short circuit current, maximum power point.
Keywords: Open circuit voltage, short circuit current, maximum power point.
Abstract
Importance of Solar Power Satellite
Reshmi Banerjee
DOI: 10.17148/IJIREEICE.2015.3829
Abstract: The world need to find new sources of clean energy. Space solar power gathers energy from sunlight in space and transmits it wirelessly to earth. Space solar power can solve our energy and greenhouse gas emissions problems. The new millennium has introduced increased pressure for finding new renewable energy sources. The exponential increase in population has led to the global crisis such as global warming, environmental pollution and change and rapid decrease of fossil reservoirs. Space based solar power is the concept of collecting solar power in space for use in earth. It has been in research since the early 1970s.
Keywords: Microwave transmitter, Space debris, Solar concentrator, Solar energy, Solar power satellite.
Keywords: Microwave transmitter, Space debris, Solar concentrator, Solar energy, Solar power satellite.
Abstract
Simulation Performance of PID Controller for Higher Order System
Puneet Vithal, Pankaj Mohindru, Pooja
DOI: 10.17148/IJIREEICE.2015.3830
Abstract: The aim of this paper is to do the comparative study of proportional controller, proportional integral controller and conventional PID controller for flowing fluids. In this paper, performance analysis of proportional, proportional integral and conventional PID controller has been done by the use of MATLAB & SIMULINK and in the end comparison of various times domain parameter is done to prove that the conventional PID controller has small overshoot, settling time, rise time and fast response as compared to P controller and PI controller. PID controller is the most widely used control strategy in industry. The popularity of PID controller can be attributed partly to their robust performance and partly to their functional simplicity. In this paper, the response of the proportional and proportional integral controller is oscillatory which damage the system. The response of the conventional PID controller is free from these dangerous oscillations in transient period. Hence the conventional PID controller is better than proportional and proportional integral controller.
Keywords: Z-N tuning, PID controller, PI controller, P controller, Matlab/Simulink.
Keywords: Z-N tuning, PID controller, PI controller, P controller, Matlab/Simulink.
Abstract
Automatic Load Frequency Control in Three Area Power System using PID Controller
Shallu Sharma, Jitendra Bhadoriya
DOI: 10.17148/IJIREEICE.2015.3831
Abstract: In this paper, the dynamic performance of automatic load frequency control of three-area power system is done by using PID controller. When load changes then, there is drift in system frequency and voltage which in turn leads to loss in generation owing to blackouts and line tripping. Main objectives of automatic load frequency control in each area is to supply load demand and to minimize tie-line power deviations, to minimize transient deviations, to improve steady-state error and to match the output power of generator with change in load. Thus, simulation evaluation is done to know the working of ALFC by building simulink models in single area, two area and three area power system.
Keywords: Automatic Load frequency control, Area control error (ACE), Proportional integral derivative (PID) controller, Matlab/Simulation.
Keywords: Automatic Load frequency control, Area control error (ACE), Proportional integral derivative (PID) controller, Matlab/Simulation.