摘要
介绍了一种各相绕组间低热耦合无电磁耦合的双余度永磁同步电动机,建立了其数学模型,设计了其调速和均流控制系统。在Ansoft中建立了双余度永磁同步电动机本体有限元模型,并在Simulink中搭建了采用id=0控制策略的SVPWM矢量控制系统模型,通过Ansoft Simplorer实现了该电机场路耦合的联合仿真。对空载运行、额定负载运行以及拖动0.7倍额定负载由双余度切换至单余度运行时的特性进行了仿真分析。仿真结果表明,场路耦合的联合仿真能够考虑到电机本体模型因磁路饱和造成的非线性和转子磁场谐波的影响,较单纯的Simulink仿真更接近实际,可以用于指导样机控制系统参数的设计和优化。
A new dual redundant permanent magnet synchronous motor with low thermal and electromagnetic coupling between the phase windings was introduced,its mathematical model was established and its speed control and current sharing control system was designed. The dual redundancy permanent magnet synchronous motor（ DRPMSM） finite element model was established in the Ansoft and the SVPWM control system model was built with id= 0 control strategy in Simulink,and field-circuit coupling simulation was realized through the Ansoft Simplorer to the motor. The operation characteristics of no-load operation,rated load operation,and redundancy-switch operation in the bear of 0. 7 of rated load was analyzed. The simulation results show that co-simulation considering the influence of PMSM＇s non-linearity,saturation effects of magnet fields and the impact of rotor magnetic field harmonic,is more realistic compared with the pure Simulink simulation and can be used to guide design and optimize the parameters of control system of prototype.
出处
《微特电机》
北大核心
2015年第8期40-44,共5页
Small & Special Electrical Machines
基金
国家自然科学基金项目(51377114)
关键词
双余度
PI控制
场路耦合
联合仿真
余度切换
dual redundancy
PI control
field-circuit coupling
co-simulation
redundancy-switch
