A Lead Angle Flux-weaking Control Strategy Based on Five-leg Driven DTP-PMSM
The utilization of a five-leg inverter to drive a dual three-phase permanent magnet synchronous motor(DTP-PMSM)can eliminate two power switches,thereby serving as a fault-tolerant mechanism in singe-phase fault conditions.However,the voltage utilization factor(VUF)reduces under this five-bridge inverter,ultimately limiting the motor's speed range.To address this limitation,a analysis was conducted regarding the voltage and current constraints imposed by the five-bridge inverter.Subsequently,a current phase advancing based flux-weakening control was adopted to achieve the speed extension.The experimental results demonstrate this current phase advancing control facilitate a seamless transition into the flux-weake-ning Ⅰ zone,significantly elevating the motor's maximum speed,thereby validating the effectiveness of the proposed method.
five-leg inverterdual-three phase permanent magnet synchronous motorlead angle flux-wea-king control
万方数据
维普
