考虑磁路交叉饱和的内置式永磁同步电动机调速控制  

Research on Speed Contorl of Interior Permanet Magent Synchronous Motor Counting for Magnetic Cross-Coupling

作　　者：王艾萌[1] 魏亮[1] 李和明[1] 

机构地区：[1]华北电力大学,河北保定071003

出　　处：《微特电机》2010年第3期42-45,49,共5页Small & Special Electrical Machines

基　　金：华北电力大学留学回国人员科研基金项目(200714001)

摘　　要：内置式永磁同步电动机由于在结构上气隙小,交直轴电感参数差异大,因此其控制性能受参数影响敏感。由于内置式永磁同步电动机的这个特点,它在其整个控制区域,即恒转矩区域和弱磁运行区域,都必须要考虑磁路交叉饱和对电机参数的影响。文章建立了考虑交叉饱和的永磁同步电动机暂态有限元模型,通过有限元模型和修正的电感计算方法对考虑交叉饱和情况下的电机d轴和q轴电感进行了分析计算。并利用有限元模型对电机最佳电流控制角、输出转矩及弱磁控制性能等进行分析。最后用求得的电感参数用于控制并与直接采用有限元方法的分析结果进行比较验证,实验结果表明两者完全吻合。IPM machine is sensitive to its parameters since it has larger difference inductance parameters between daxis and q-axis and the air gap is smaller than conventional PM machine. Magnetic cross-coupling effects must be taken into account in order to improve its control performance in both the constant torque and the flux-weakening operating regions. This paper set up a transient FEA model and anaylsis its magnetic cross-coupling , the characteristic of torque ,and the flux-weakening performance, and calculated d and q-axis inductance by proposed model and method. The ideal control angle is also calculated by the finite element analysis （FEA） Model considering maximum limits in both the constanttorque and flux-weakening operating regimes. Finally we found the control system using the parameters calculated above, and the experimental results show perfect agreement with the characteristic of the IPM directly calculated by FEA Model.

关 键 词：磁路交叉饱和 有限元分析 内置式永磁同步电动机 恒转矩控制 弱磁 

分 类 号：TM341[电气工程—电机]