一种无互联线并联的辅助变流器新启机方法

A New Start Method of Wireless Parallel Auxiliary Inverter

在高速动车组和城市轨道车辆实际运用中,多台辅助变流器的启机并网是一个关键技术问题,主要涉及到列控系统启机逻辑、启机时序和辅助变流器启机方法。为解决当前工程应用中多台辅助变流器的启机冲突问题,缩短辅助系统启机时间,降低列控系统对辅助变流器启机控制的难度,提出一种辅助变流器新启机方法。通过合理设计启机逻辑和优化控制策略,可以改进传统辅助变流器启机控制方法的不足,最后进行了试验验证,证明该启机方法可行有效。

In the practical application of high-speed EMUs and urban rail vehicle,the grid-connection of multiple auxiliary inverters is a key technical problem,which mainly involves the starting logic and the timing sequence of the train control system,and the starting method of the auxiliary inverter.In order to solve the problem of the startup conflict of several auxiliary inverters in the current engineering application,shorten the startup time of auxiliary system and reduce the train control difficulty of auxiliary inverter,a new startup method of auxiliary inverter was proposed.Through reasonable design of start-up logic and optimal control strategy,the deficiencies of traditional auxiliary converter control methods were improved.Finally,the experimental validation was completed,which proved that the new start method was effective and feasible.