一种改善PMSM动态性能的弱磁策略  

Flux-weakening strategy for improving PMSM dynamic performance

作　　者：周华伟[1,2] 陈龙[2] 刘国海[1] 蒋彦[1] 

机构地区：[1]江苏大学电气信息工程学院,江苏镇江212013 [2]江苏大学汽车工程研究院,江苏镇江212013

出　　处：《电机与控制学报》2014年第9期23-29,共7页Electric Machines and Control

基　　金：江苏大学高级专业人才科研启动基金(12JDG109);国家自然科学基金(51077066);江苏省高校优势学科建设工程资助项目(苏政办发〔2011〕6号)

摘　　要：针对永磁同步电机(permanent magnet synchronous motors,PMSM)在弱磁区电动工况下运行时动态性能不理想的问题,依据PMSM弱磁理论,研究了dq轴电流调节器对弱磁动态性能的影响,提出一种改善PMSM动态性能的弱磁策略。弱磁电流由q轴电流误差积分器和电压调节器共同作用获得。仿真和实验结果表明该策略抑制了q轴电流调节器的不利影响,改善了PMSM在弱磁区电动工况下的动态性能,同时具有抗积分饱和及弱磁控制的双重功能。The dynamic performance of permanent magnet synchronous motors（ PMSM） in flux-weakening operation is not good. To solve the problem,by analyzing the affection of dq-axis current regulators to the PMSM dynamic performance,a flux-weakening strategy for improving PMSM dynamic performance was proposed. The flux-weakening current was obtained by the interaction of q-axis current error integrator and voltage regulator. The simulation and experimental results demonstrate that the negative effect of qaxis current regulator is restrained,the PMSM dynamic performance in flux-weakening operation is improved,and the proposed strategy has the anti-windup and flux-weakening function.

关 键 词：永磁同步电机 弱磁控制 动态性能 q轴电流误差积分 抗饱和 

分 类 号：TM301.2[电气工程—电机]