大型同步电动机高压降补固态软起动装置的应用

Application of high voltage reduction and compensation solid state soft start device to large synchronous motor

针对高压同步电动机直接启动时电流过大的问题,采用了一种高压降补固态软起动装置。介绍了高压降补固态软起动装置的原理和结构,阐明了其控制逻辑。实际应用表明:高压降补固态软起动装置不仅能够明显地减少启动电流,避免了电网电压的剧烈波动,而且调试和使用简便,是一种有效的解决方案。

In view of the large current at the time of the high voltage synchronous motor directly starting,the high voltage reduction and compensation solid state soft start device wasapplied.The paper introduced the principle and the structure of the high voltage reduction and compensation solid state soft start device,and elaborated its control logic.Its successful application in practice showed the high voltage reduction and compensation solid state soft start device not only remarkably reduced the stating current so as to avoid violent voltage fluctuation,but also easy to debug and operate.It was an effective solution.