As a synchronous rotating device,synchronous motors can quickly suppress transient overvoltage in the power grid based on their spontaneous and non delay characteristics of reactive power response.They are currently widely used in distributed condensers.Due to the lack of a top shaft oil system in distributed condensers,the initial starting resistance torque is relatively high,and conventional variable frequency starting control methods are difficult to ensure the success rate of unit startup.This article proposes a control method for dividing the initial power moment of the variable frequency starting system into segments,which can not only solve the problem of difficult starting of distributed condensers,but also complete the starting task well according to the original starting speed curve.
关键词
静止变频启动器/初始阻力矩/同步电动机/分布式调相机
Key words
static variable frequency starter/initial resistance moment/synchronous motor/distributed condenser
维普
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