Comparative Study of PI and Fuzzy DC Voltage Control for a wind energy conversion System (in: Vol. 6, n. 2, 2013)

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Self excited  induction generator has become very popular for generating power from renewable energy sources , Their main disadvantage is poor voltage regulation under varying load and speed. This paper presents a comparison between a fuzzy logic controller and a conventional PI  controller used for  DC voltage  control of  self  excited induction generator in   wind energy conversion System. The robustness between these two regulators was tested and validated under simulations with the presence of variations rotor speed and DC load . The simulation results obtained showed that the fuzzy controller improves the system performances compared to the PI controller.
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