Precise Closing Strategy on Switching Shunt Capacitor Bank in 220 kV Substation

SONG Xiangzheng; GUO Chunlin; YANG Hongwang; ZHU Kejia

doi:10.14044/j.1674-1757.pcrpc.2021.01.002

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Precise Closing Strategy on Switching Shunt Capacitor Bank in 220 kV Substation

更新时间：2024-09-14

- Precise Closing Strategy on Switching Shunt Capacitor Bank in 220 kV Substation
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 42, Issue 1, Pages: 6-11(2021)
- 作者机构：
  
  华北电力大学新能源电力系统国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2021.01.002
  CLC： TM53;TM63
- Published：2021，
- 稿件说明：
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[1]宋向征,郭春林,杨洪旺,朱柯佳.220 kV变电站投切并联电容器组精准合闸策略[J].电力电容器与无功补偿,2021,42(01):6-11.

SONG XIANGZHENG, GUO CHUNLIN, YANG HONGWANG, et al. Precise Closing Strategy on Switching Shunt Capacitor Bank in 220 kV Substation. [J]. Power capacitor & reactive power compensation, 2021, 42(1): 6-11.
[1]宋向征,郭春林,杨洪旺,朱柯佳.220 kV变电站投切并联电容器组精准合闸策略[J].电力电容器与无功补偿,2021,42(01):6-11. DOI： 10.14044/j.1674-1757.pcrpc.2021.01.002.

SONG XIANGZHENG, GUO CHUNLIN, YANG HONGWANG, et al. Precise Closing Strategy on Switching Shunt Capacitor Bank in 220 kV Substation. [J]. Power capacitor & reactive power compensation, 2021, 42(1): 6-11. DOI： 10.14044/j.1674-1757.pcrpc.2021.01.002.

摘要

为了减小220 k V变电站合闸并联电容器产生的涌流对系统的冲击

提高电能质量

本文依据实际220 kV变电站系统建立并联电容器合闸的数学模型

通过计算得到涌流最小时并联电容器精准合闸策略并仿真验证了合闸策略的有效性。分析了机械开关合闸的分散性和电压同步测量误差

给出减小误差办法并计算合闸延时

确保并联电容器组在特定时刻精准合闸

能够有效减小并联电容器组合闸涌流。

Abstract

For reducing the impact of inrush current generated by the closing shunt capacitor in 220 kV substations to the system and improving power quality

in this paper

the mathematical model of shunt capacitor is set up in accordance with actual 220 kV substation systems. The precise closing strategy of shunt capacitor bank is obtained by calculating the minimum inrush current and effectiveness of the closing strategy is verified by simulation. The closing dispersion of mechanical switch and synchronous measurement error of voltage are analyzed. The method of reducing the error is given and the time delay in closing operation is calculated to ensure that shunt capacitor banks can close accurately at a specific time and effectively reduce the closing inrush current of shunt capacitor.

关键词

并联电容器组精准合闸投切策略误差分析

Keywords

shunt capacitor bankprecise closingswitching strategyerror analysis

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