典型移相变压器差动保护配置对比分析

Comparative Analysis of the Differential Protection Between Typical Phase Shifting Transformers

根据应用场合的不同,移相变压器有多种结构,不同结构和接线方式其差动保护配置也各有不同。从保护配置角度出发,总结了移相变压器的几种基本类型;以移相变压器常用的2种基本差动原理为基础,提出了针对几种典型移相变压器的保护配置;通过RTDS建模仿真实验,讨论了不同差动保护的保护范围、所反映的故障类型及相互配合关系。

There are many kinds of phase shifting transformer （PST） because of the wide variety of applications. Therefore, the differential protection of the PST are different. This paper analyzes the differential protection of PST and sum up the typical type of it. Based on two fundamental differential protection principles, this paper proposes a series of differential protection configuration for typical PST. The protection scope, fault type and matching relation of different protection are analyzed base on theoretical analysis and RTDS simulation.d RTDS simulation.