考虑交叉耦合效应的混合励磁开关磁链电机转子位置估计  

Position estimation for hybrid excited switched flux permanent magnet machine considering cross-coupling effect

作　　者：刘旭[1,2] 郑志康 曹阳[1,2] LIU Xu;ZHENG Zhikang;CAO Yang(Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province,Hebei University of Technology,Tianjin 300130,China;State Key Laboratory of Reliability and Intelligence of Electrical Equipment,Hebei University of Technology,Tianjin 300130,China)

机构地区：[1]河北工业大学河北省电磁场与电器可靠性重点实验室,天津300130 [2]河北工业大学省部共建电工装备可靠性与智能化国家重点实验室,天津300130

出　　处：《电机与控制学报》2023年第7期50-58,共9页Electric Machines and Control

基　　金：国家自然科学基金(52077055);天津多元投入重点项目(22JCZDJC00950);中央引导地方科技发展资金项目(226Z1601G)。

摘　　要：针对使用高频电压注入法估计混合励磁开关磁链永磁(HESFPM)电机转子位置时,由于直轴和交轴之间的交叉耦合效应使得转子位置估计精确度降低的问题,提出了一种对交叉耦合效应进行角度补偿的HESFPM电机励磁绕组高频电压注入位置估计方法。通过电枢绕组α、β轴高频电流响应估计转子位置,分析了交叉耦合效应对所提出的高频电压注入位置估计精确度的影响,通过离线方法测量出该效应导致的交叉饱和角,并进行无位置传感器控制在线角度补偿。最后,通过12槽10极HESFPM样机进行实验验证,实验结果表明电机运行在不同转速、负载工况下,所提方法能够有效减小位置估计直流偏置误差,具有良好动态跟随性能。Aiming at the problem that the accuracy of estimating the rotor position of hybrid excited switched flux permanent magnet(HESFPM)machine is reduced due to the cross-coupling effect between the direct axis and the quadrature axis when high-frequency voltage injection method is used to estimate the rotor position,a method for estimating the injection position of high frequency voltage in HESFPM machine field windings by angle compensation of cross coupling effect was proposed.The rotor position was estimated by the high-frequency current response ofαandβaxes of armature winding,and the influ-ence of cross-coupling effect on the accuracy of the improved frequency voltage injection position estima-tion scheme was analyzed.The cross-saturation angle caused by this effect was measured by off-line meth-od,and the angle compensation was carried out during the sensorless control.Finally,a 12/10 HESFPM prototype was used for experimental verification.The experimental results show that the proposed method can effectively reduce the DC bias error of position estimation and has good dynamic following perform-ance when the machine runs at different speeds and load conditions.

关 键 词：混合励磁开关磁链永磁电机 转子位置估计 励磁绕组高频注入 交叉耦合效应 角度补偿 直流偏置误差 

分 类 号：TM351[电气工程—电机]