永磁同步发电机无速度传感器控制  

Speed Sensorless Control of Permanent Magnet Synchronous Generators

作　　者：张兴[1] 郭磊磊[1] 杨淑英[1] 曹仁贤[2] 

机构地区：[1]合肥工业大学电气与自动化工程学院,安徽省合肥市230009 [2]合肥阳光电源股份有限公司,安徽省合肥市230088

出　　处：《中国电机工程学报》2014年第21期3440-3447,共8页Proceedings of the CSEE

基　　金："十二五"国家科技支撑计划重大项目(2012BAA01B04)~~

摘　　要：基于二阶滑模观测器的永磁同步电机无速度传感器控制需要对估计的反电动势进行低通滤波和补偿,这增加了系统复杂性,并使估计的转子位置受转速估计误差影响严重。为此,提出了一种基于有效反电动势的全阶滑模观测器。该观测器具有二阶低通滤波的特性,可滤除估计的有效反电动势中含有的高频滑模噪声,无需再外加低通滤波器。然后可采用锁相环直接获得转子位置,实现无速度传感器控制。此外,该方法可以通过合理设计滑模增益,提高转子位置估计对转速估计误差的鲁棒性。仿真和实验结果验证了该方法的有效性。The speed sensorless control of permanent magnet synchronous generators, which is based on second order sliding mode observers, needs low-pass filters and compensators. Therefore the complexities of these systems are increased and the estimated rotor positions are heavily influenced by the estimated speed errors. Hence, a full order sliding mode observer based on active back electromotive force was proposed. Because of the second order low pass filter characteristic of the observer, the high-frequency sliding noise contained in the active back electromotive force can be filtered without the addition of another low-pass filter. Then a phase locked loop can be used to get the rotor position directly and speed sensorless control can be fulfilled. In addition, through the reasonable design of the sliding mode gain, the robustness of the estimated rotor position for the estimated speed error can be improved. The simulation and experimental results verify the effectiveness of the proposed algorithm.

关 键 词：风力发电 永磁同步发电机 无速度传感器 全阶滑模观测器 锁相环 

分 类 号：TM313[电气工程—电机]