Modeling of a PMSG based wind turbine assisted by a diode rectifier

Most of modern distributed power generation systems are based on Renewable Energy Sources (RESs). Despite the fact that, nowadays, the technologies of the commonly used RESs (i.e. high power wind turbines and photovoltaic) reached a mature level, there are specific RES-based systems that still require further research works that is low power wind turbine systems. Thanks to its robustness and high cost effectiveness, the Permanent Magnet Synchronous Generator (PMSG) associated to a diode rectifier is considered as a suitable solution for low power wind turbine systems. In literature, the PMSG with a three-phase diode rectifier is modeled using average dynamic models or linearized models. This makes it difficult to subsequently develop accurate controllers for the whole wind energy conversion system. For that, this paper presents an accurate time-continuous model for a PMSG assisted by a three-phase diode rectifier. The proposed model is validated through numerous simulation tests.