广东电力2017，Vol.30Issue(5)：119-123,5.DOI:10.3969/gddl/gddl2017/1705/170522.htm
220kV母线高压电抗器投切对电力系统的影响
Influence of 220 kV Busbar High-voltage Shunt Reactor Switching on Power System
金超亮 1周原 2李化 1程梦凌 1黄振1
作者信息
- 1. 强电磁工程与新技术国家重点实验室(华中科技大学),湖北 武汉430074
- 2. 广东电网有限责任公司电力科学研究院,广东 广州510080
- 折叠
摘要
Abstract
220 kV Diequan substation is the first substation in China planning to install shunt reactor at the high-voltage side of busbar to compensate capacitive reactive power. This paper assesses influence of this shunt reactor switching on the power system. It considers excitation characteristic of the shunt reactor and statistic feature of switching over-voltage, calculates voltage changes caused by shunt reactor switching and assesses voltage fluctuation within ranges of equipment and system tolerance. It respectively calculates switching transient states of installation and no installation of phase selection closing device including operational over-voltage and excitation surge current caused by shunt reactor switching. Simulation results indicate it is able to keep over-voltage in permissible range by controlling chopping current of the circuit breaker when cutting off the high-voltage reactor, and reduce excitation surge current to a reasonable range by using the phase selection closing device and formulating corresponding closing strategy.关键词
高压电抗器投切/过电压/励磁涌流/选相合闸装置Key words
high-voltage shunt reactor switching/over-voltage/excitation surge current/phase selection closing device分类
信息技术与安全科学引用本文复制引用
金超亮,周原,李化,程梦凌,黄振..220kV母线高压电抗器投切对电力系统的影响[J].广东电力,2017,30(5):119-123,5.
