Abstract: Voltage source converter is the bonding part between renewable energy source and power grid to transfer electricity. When a renewable power source is connected to the far end of distribution system, the grid will become non ideal and possess the considerable amount of impedance. In this paper the effect of grid side impedance on operation of Voltage Source Converter (VSC) is presented. It is shown that for weaker grid, stable power transfer ability of VSC reduces as grid impedance increases. To demonstrate grid impedance effect on operation of VSC, Matlab simulation results are presented.

Keywords: Grid impedance, weak grid, grid connected converter etc

| DOI: 10.17148/IJIREEICE.2019.7609