电力系统保护与控制Issue(23)：118-124,7.
基于MRAS的多相永磁直驱型风力发电系统无速度传感器控制策略研究
Research on sensorless control strategy of direct drive multi-phase PMSG wind power generation system based on MRAS
摘要
Abstract
A high power direct drive variable-speed constant-frequency wind energy conversion system based on multi-phase permanent magnet synchronous generator (PMSG) is researched. In order to reduce the current of each winding and each power electronics converter, six-phase PMSG and multiple AC-DC-AC converters are used. A sensorless control strategy of six-phase PMSG based on model reference adaptive system (MRAS) is researched. In this strategy, the PMSG is regarded as reference model while the current model of PMSG is considered as adjustable model. The adaptive laws are designed so that generator speed and rotor position are estimated at the same time. Maximum power point tracking (MPPT) control strategy based on step-changing climbing method is also researched. This method has a fast dynamic response and a good steady state. Experimental results prove that the proposed method is capable of precisely estimating the generator speed and rotor position under the condition of load change and speed change. When the wind speed is changing, the proposed method can also track the maximum power point.关键词
风力发电/模型参考自适应系统/多相永磁同步发电机/无速度传感器控制Key words
wind power/MRAS/multi-phase PMSG/sensorless control分类
信息技术与安全科学引用本文复制引用
胡维昊,王跃,李明烜,李明,王兆安..基于MRAS的多相永磁直驱型风力发电系统无速度传感器控制策略研究[J].电力系统保护与控制,2014,(23):118-124,7.基金项目
国家高技术研究发展计划（863计划）资助项目(2012AA050206)This work is supported by National High-tech R&D Program of China (863 Program)(No.2012AA050206) （2012AA050206）
