Review of the Technological Development of Permanent Magnet Wind Generator

The wind turbine system consists of wind generators and converters, and it is the core component of the wind turbine to achieve energy conversion. Permanent magnet wind generators are high efficiency, with a high torque density and exceptional reliability. Their integration into the grid through full-power converters provides key advantages, such as enhanced reactive power output and low voltage ride-through capability. Permanent magnet wind turbine technology has received widespread attention in the development of wind power generation technology. First, the development of wind power generation technology both domestically and internationally and government policy support are introduced. The working principles, advantages, and disadvantages of different types of wind power generator systems are explained, and a comprehensive comparison of the mainstream wind generator models is conducted to reveal the competitive advantages of permanent magnet wind turbine technology. Then, the current status of permanent magnet wind generator technology in recent years is discussed，including efficient operation technology in full wind speed range, cogging torque suppression technology, vibration suppression technology, high and low voltage fault ride through technology, condition monitoring and fault diagnosis technology, modular strong fault tolerance technology, etc. Finally, the future development trend of permanent magnet wind turbine technology is prospected.