Series compensated PWM inverter with battery supply applied to an isolated induction generator

Because of the rapid growing interest in windpower generation, there is a growing demand for the development of a suitable generating-system for wind power applications. Among the many other types of generators used, the induction machine is one of the most suitable generator for wind power applications due to its simplicity, ruggedness, durability and flexibility in the speed range of operation.; There are many type of excitation being used to supply the reactive power needed by the induction generator. However, in an isolated system, solid state excitation is the best candidate for the source of reactive power. Despite the harmonics generated by the inverter excitation, the quest for a better system drives many researcher to find ways to tap the energy being generated by the system both from the AC side and from the DC side.; This thesis proposes a series compensated induction generator with a battery supply which provides a constant voltage and frequency at the terminals, minimum current harmonic distortion and a source and sink of active and reactive power. The speed of the generator is allowed to vary within a certain range giving a flexible control of the wind turbine blade.; The technique that is developed in this study can be expanded by applying a switched capacitor in parallel with the load to lessen the burden of the PWM inverter. Both simulation and experiment results are in agreement which leads to the conclusion that the system is feasible for isolated wind power generation.