对双Y移30°的六相永磁电机控制系统分析时，如果电机本体结构设计时各相绕组间互感可以忽略不计，可以将其看作2套三相子控制系统进行分析。参考常规三相半桥拓扑结构下电机的建模，对三相四桥臂拓扑结构下的子系统进行建模；在三相半桥控制系统空间矢量调制原理的基础上，提出了三相四桥臂的三维静止坐标系下的空间矢量调制原理；最后，对常见的一相故障提出两种容错控制策略，并利用仿真对控制策略进行验证。%For dual three-phase permanent magnet synchronous motor (DTP-PMSM)control system, with two sets of Y-connected windings phase shifted by 30 electrical degrees, if the mutual inductances of the winding can be negligible by the design of motor, the control system can be treated as two sets of three-phase sub-control system for analysis. So according to the modeling of conventional three-phase half-bridge topology motor, the mathematic model of three-phase four-leg topology control system can be established. Also on the basis of the three-phase half-bridge space vector pulse modulation (SVPWM), the new three-dimensional space vector PWM can be proposed. At last, two fault-tolerant control methods are proposed to deal with one-phase-open condition, and the simulation results are given to prove the control strategy.
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