基于矢量修正的幅值算法在电源切换装置中的应用

The Application of Phasor Length Correction in Motor Bus Transfer Device

长期以来,电源切换装置作为提高电力系统供电可靠性的重要措施之一,以其接线简单、节省投资、简化电网一次接线和继电保护配置等诸多优越性,大量应用在用户变电站、系统内的终端变电站和变电站主变低压侧,以保证向用户连续可靠供电。本文详细描述了目前国内电源切换装置用到的一种传统幅值算法,并且分析了存在的问题,在此基础上介绍一种新型的基于矢量修正的幅值算法,并且分析其用于电源切换装置的优点。

Nowadays, motor bus transfer device has been used widely in the power plants for the advantage of simple Commissioning, low cost, predigesting the primary connection and equipment. As the most important method to improve the reliability of power system, motor bus transfer device can ensure the uninterrupted power supply to customers. This paper describes the traditional amplitude algorithm used in Motor Bus Transfer device and analyze the disadvantage of the traditional algorithm, then the application of a new amplitude algorithm in Motor Bus Transfer device will be introduced, also the advantage of this new algorithm will be analyzed.