Modelling of Five-Phase Induction Generator Incorporating Magnetic Cross Saturation Effect
2019
Due to the depletion of fossil fuel and problems of pollution associated with them, the contribution of renewable sources of energy is increasing day by day to encourage sustainable living. Various researches are going on in the field of solar and wind power generation to achieve this goal. With inbuilt attributes of robustness, exciter-less operation and squirrel cage structure the Induction Generators (IGs) are well suited for application in wind energy conversion system (WECS). Further consolidation of these attributes may be achieved by using high (more than three) phase machine for IG operation. In high-phase machines the per-phase current can be reduced without increasing the per phase voltage for the same power rating. In this study two non-linear dynamic models for a five-phase induction generator are compared. One of the models includes magnetic cross-saturation effect and is referred as the full model while the other one is simplified model that neglects magnetic cross saturation and other non-uniformities of the machine.
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