基于转差频率的互馈试验台电机控制策略研究

Study on motor control strategy of the mutual-feedtest bed based on slip frequency

针对互馈试验台,基于转差频率控制策略,研究了牵引电机侧速度的调节和负载模拟侧阻力矩的调节。进一步研究了二者之间存在的耦合关系并提出了解耦对策。最后通过研制的互馈试验台证明该控制方案可以精确调速,同时能够模拟机车各种工况下的负载,满足大功率试验系统的要求。

Based on slip frequency control strategy for the mutual-feed test bed, it is studied the regulation of traction motor speedas well as the analog load resistance torque with analog load. The coupling relationship in between is further studied and decouplingmeasures are proposed. Through the developed mutual-feed test bed, it is proven that the control program features accurate speedregulation and is capable of load simulation at different locomotive working modes, which reaches the requirement of high power testsystem.