摘   要：内置式永磁同步电机具有高功率密度，高效率和强弱磁能力的优点，在伺服系统中广泛应用。电流控制策略是内置式永磁同步电机（IPM电机）矢量控制中的关键问题，目前广泛应用的控制方式有四种，分别是id=0控制，最大力矩电流比控制，cosφ=1控制，恒磁链控制。不同的电流控制策略和凸极系数对IPM电机的影响仍少有研究，但实际上却很有意义。该文全面分析了在不同凸极系数下各种电流控制策略对IPM电机的影响，并通过计算及仿真给出了各种特性曲线，从而可根据特定凸极系数的IPM电机选用合适的控制策略，以期获得较佳的控制性能。
关键词： IPM电机；电流控制；凸极系数

Abstract: The interior permanent magnet(IPM)motor is a popular choice for servo control due to its high power density,high efficiency and field-weakening capability due to the saliency.The selection of current control strategies for IPM motors is one of the key considerations in the IPM vector control systems.Currently,four popular current control methods,namely, id=0,cosφ=1(full power factor),maximum torque current ratio(MTCR)and constant fluxlinkage,are widely employed.However,the influence of different current control strategies and the saliency on the performance of IPM machine is rarely investigated,although it is important to choose the proper strategies with different saliency.Therefore,in this paper the influence of four control strategies on the performance of an IPM motor was firstly studied by theoretical calculation and simulation.Then,a series of classical values for saliency was chosen to investigate the effects on performance and some important conclusions were drawn according to the results.
Key Words: IPM motor；Current control；Salient coefficient