开关磁阻电机磁链特性检测与位置信号估计  

Flux linkage characteristic detection of switched reluctance motor and the position estimate

作　　者：张磊[1] 刘闯[1] 王云林[1] 张云龙[1] 

机构地区：[1]南京航空航天大学自动化学院,江苏南京210016

出　　处：《电机与控制学报》2013年第2期28-33,38,共7页Electric Machines and Control

基　　金：国家自然科学基金(50407003)

摘　　要：针对开关磁阻电机磁链检测过程复杂、实现困难的问题,提出一种基于dSPACE在线磁链特性检测系统。利用SIMULINK建立磁链计算模型,应用ControlDesk丰富的虚拟控件在线优化模型,采用阶跃电压法,简便快速检测磁链特性。针对开关磁阻电机简化磁链位置估计方法中换相位置不好确定、位置估计精确度低的缺点,提出一种基于特征位置磁链特性检测的改进型简化磁链位置估计方法。以相电感曲线的交点为特征位置,该位置磁链密度不高,因而该方法比传统的简化磁链位置估计方法精确度高。为减小电机加工工艺误差对特征位置磁链特性检测的影响,引入算术平均值的方法。实验结果验证了该磁链特性检测和改进型简化磁链位置估计方法的有效性。As the flux linkage of the switched reluctance motor （SRM） is difficult to be detected, a flux linkage characteristic detection system based on dSPACE is proposed. The simulation model was proposed in the system. The system model was on-line optimized by the virtual control of the ControlDesk. The process of tile flux linkage characteristic detection was simplified by step voltage. Based on flux linkage characteristic detection, an improved simplified flux linkage sensorless method was presented based on the special position, and the special position was the point of＇ intersection of the phase inductance curves. As the special position magnetic density was sparse, the the traditional simplified flux linkage sensorless method. special position flux linkage characteristic detection, ing course. At last, experiments verify the validity of the sorless scheme. accuracy of the position estimate was higher than The arithmetic mean value was proposed tbr the it avoided the influence of the error in the work- flux linkage characteristic detection and the sen-

关 键 词：开关磁阻电机 磁链特性检测 改进型简化磁链 算术平均值 无位置传感器技术 

分 类 号：TM301.2[电气工程—电机]