Study on Adaptability of Phase Modifier Access to Jiangsu Power Grid

CAI Hui; ZHANG Wenjia; QI Wanchun; WANG Weiyuan; XIE Zhenjian; HUANG Junhui; ZHAO Xin

doi:10.14044/j.1674-1757.pcrpc.2017.02.006

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Study on Adaptability of Phase Modifier Access to Jiangsu Power Grid

更新时间：2024-09-14

- Study on Adaptability of Phase Modifier Access to Jiangsu Power Grid
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 38, Issue 2, Pages: 23-27(2017)
- 作者机构：
  
  1. 国网江苏省电力公司经济技术研究院
  2. 国网江苏省电力公司
  3. 东南大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2017.02.006
  CLC： TM732;TM721.1
- Published：2017，
- 稿件说明：
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[1]蔡晖,张文嘉,祁万春,汪惟源,谢珍建,黄俊辉,赵欣.调相机接入江苏电网后的适应性研究[J].电力电容器与无功补偿,2017,38(02):23-27.

CAI HUI, ZHANG WENJIA, QI WANCHUN, et al. Study on Adaptability of Phase Modifier Access to Jiangsu Power Grid. [J]. Power capacitor & reactive power compensation, 2017, 38(2): 23-27.
[1]蔡晖,张文嘉,祁万春,汪惟源,谢珍建,黄俊辉,赵欣.调相机接入江苏电网后的适应性研究[J].电力电容器与无功补偿,2017,38(02):23-27. DOI： 10.14044/j.1674-1757.pcrpc.2017.02.006.

CAI HUI, ZHANG WENJIA, QI WANCHUN, et al. Study on Adaptability of Phase Modifier Access to Jiangsu Power Grid. [J]. Power capacitor & reactive power compensation, 2017, 38(2): 23-27. DOI： 10.14044/j.1674-1757.pcrpc.2017.02.006.

摘要

随着大容量、远距离特高压交直流输电技术的深入应用

江苏电网资源优化配置能力显著提高

江苏电网受电比例逐步提高

成为典型的受端电网

系统动态无功补偿不足和电压稳定问题凸显。针对江苏电网存在的问题

在受端电网配置调相机的技术原则

开展了调相机在江苏电网安装后的适应性研究

提出了应对调相机在江苏电网配置后对短路电流提升的解决措施。仿真计算分析表明

调相机在江苏电网合理配置后

在故障期间充分发挥了无功支撑的作用

减少了直流换相失败导致闭锁的概率可以解决苏南地区在春节等低负荷时期出现的高电压问题。对于调相机接入后出现的短路电流升高问题

在不降低电网供电安全性的前提下

可以通过调整网架结构等手段予以解决。

Abstract

With the deep application of high power and remote UHV AC and DC transmission technology

the optimization allocation ability of grid resources in Jiangsu has made remarkable improvement

the proportion of receiving electricity in Jiangsu power grid has improved gradually and become into typical receiving grid

therefore the problem of insufficient dynamic reactive power compensation of system and voltage stability are becoming prominent. As for the problem existed in Jiangsu power grid

the adaptation study of phase modifier after connecting to Jiangsu grid is developed on the technology principle of arranging phase modifier at the receiving end grid and the solution to the short circuit current improvement after arranging the phase modifier in the Jiangsu power grid is proposed. It is shown by the simulation calculation analysis that phase modifier

after reasonable arrangement in Jiangsu power grid and during the fault period

plays the role of reactive power support

reduces locking probability due to failure of DC commutation so to solve the HV problem of south Jiangsu area in low load time such as Spring Festival. As for the short circuit current rise after connection of the phase modifier

it can be solved by way of adjusting grid structure at the premise of not reducing safety of grid supply.

关键词

调相机江苏电网电压稳定直流双极闭锁短路电流

Keywords

phase modifierJiangsu power gridvoltage stabilityDC lockingshort-circuit current

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