电力工程车直流侧电压稳定控制策略

针对电力工程车牵引变流器在工作过程中产生的直流侧振荡现象,提出一种直流侧电压稳定控制的方法,提取多重可能影响直流侧电压的振荡因素,通过前馈补偿到转矩来抑制振荡。文章通过仿真模型及实际系统运行,对上述方法进行验证,结果显示该方法能够有效抑制系统振荡。

During operation of the traction converter in electric locomotive, the DC-link oscillation phenomenon exists. A DC side voltage stability control method is proposed to extract multiple oscillation factors that may affect the DC side voltage. The oscillation is suppressed by feed forward compensation to torque. This paper verifies the method through simulation and actual experiment. The results show that this stability method can effectively suppress system oscillation.