Abstract: Induction generators are increasingly being used in nonconventional energy systems such as wind, micro/mini hydro, etc. The advantages of using an induction generator instead of alternator are reduced cost and size, ruggedness, brushless (squirrel cage) construction, absence of separate dc source, ease of maintenance, inherent overloads and short circuit protection, etc. In isolated systems, squirrel cage induction generators with capacitor excitation, known as self-excited induction generators (SEIGs), are very popular. This paper discusses the overview of induction generator and reviews the voltage regulation techniques used for self excited induction generator.
Keywords: self-excited induction generators (SEIGs), ruggedness, squirrel cage construction, Induction Generator.