摘要
直接转矩控制(DTC)永磁同步发电机(PMSG)直流发电系统需在发电机转子旋转情况下准确获取转子磁极初始位置,实现定子磁链准确观测。为减小发电初期定子电流冲击,需要初始建压。针对PMSG转子旋转情况下转子发电需要,提出一种转子旋转情况下辨识转子磁极初始位置新方法。实验结果表明,转子磁极初始位置电角度辨识误差在±12°范围内,满足发电建压需要;发电系统建压迅速,负载情况下运行平稳。
The initial rotor position is demanded to estimate the accuracy stator flux linkage for a DC generating sys- tem based on the direct torque control （DTC） permanent magnet synchronous generator（PMSG） and some initial DC voltage on the DC bus capacity must be achieved to reduce the starting current at the moment of generating.A novel detection technique of initial rotor position is proposed for PMSG with rotating rotor.The experimental results show that there are ＋12° estimate error and the DC voltage is very smooth under the rated load with estimated initial rotor position angle.
出处
《电力电子技术》
CSCD
北大核心
2014年第2期66-68,76,共4页
Power Electronics
关键词
永磁同步发电机
初始位置
直接转矩控制
permanent magnet synchronous generator
initial position
direct torque control
