PMSM对拖系统再生能量利用研究

RESEARCH ON THE UTILIZATION OF RECYCLING SYSTEM ENERGY FOR PMSM

分析传统对拖测试平台的负载能量利用情况的基础上,搭建了一种直流互馈对拖测试系统,稳态运行时,负载回馈能量在两台电机循环利用,大大降低了能耗。对拖测试系统中的变工况能量造成直流母线电压的波动,采用超级电容和电阻混合控制处理不仅能够吸收被测PMSM减速制动回馈能量,还能稳定系统启动加速阶段造成的母线电压跌落,使系统安全高效的运行。

Based on the traditional analysis of the load energy utilization of the tow test platform,a DC reciprocal feed towing test system was built.During steady state operation,the load feedback energy was recycled in the two motors,which greatly reduced energy consumption.The fluctuation of the DC bus voltage caused by the variable working condition in the tow test system,and the use of the super-capacitor and resistor hybrid control processing can not only absorb the deceleration braking feedback energy of the PMSM under test,but also stabilize the bus voltage drop caused by the system start-up acceleration phase.Make the system run safely and efficiently.