可控移相器对特高压交直流接入受端电网影响研究

doi:10.11930/j.issn.1004-9649.201612033

中国电力 ›› 2018, Vol. 51 ›› Issue (7): 7-12.DOI: 10.11930/j.issn.1004-9649.201612033

可控移相器对特高压交直流接入受端电网影响研究

卫鹏, 周前, 朱鑫要, 嵇托, 张宁宇

国网江苏省电力公司电力科学研究院, 江苏南京 211103

收稿日期:2016-12-27 修回日期:2017-12-13 出版日期:2018-07-05 发布日期:2018-07-31
作者简介:卫鹏(1988-),男,硕士,工程师,从事电力系统分析工作,E-mail:bqsrwei@sina.com
基金资助:
国家自然科学基金资助项目（51607092）；国家电网公司科技项目（JS139205）。

Research on Impact of TCPST on Receiving-End Power Grid with UHVAC and UHVDC Accessing

WEI Peng, ZHOU Qian, ZHU Xinyao, JI Tuo, ZHANG Ningyu

State Grid Jiangsu Electric Power Research Institute, Nanjing 211103, China

Received:2016-12-27 Revised:2017-12-13 Online:2018-07-05 Published:2018-07-31
Supported by:
This work is supported by National Natural Science Foundation of China (No.51607092), Science and Technology Project of State Grid of Corporation of China (No.JS139205).

摘要/Abstract

摘要： 为了研究可控移相器对电网安全稳定的影响，在对可控移相器基本原理和拓扑结构进行分析的基础上，建立了可控移相器的稳态和暂态模型，设计了串联变压器和并联变压器参数，以江苏电网为背景，通过在锦苏特高压直流近区应用500kV可控移相器，分析了可控移相器的应用效果，仿真结果表明：可控移相器可解决直流小方式的受进问题和大方式的送出问题，可减小直流双极闭锁后的负荷损失约1000MW，同时在电网故障后提高苏州南部电网恢复电压5~10kV，对于保障电网安全经济运行具有积极的作用。

关键词: 可控移相器, 潮流控制, 特高压直流, 双极闭锁

Abstract: With the rapid development and construction of ultra-high voltage (UHV) power grid, the control of power grid turns to be more complex. Using TCPST (controlled phase shifters) and other advanced flow control devices to solve power system planning and operation problems has broad application prospects. In order to study the influence of controlled phase shifter on the security and stability of power grid, basic principles and topologies of TCPST are investigated. The steady and instantaneous models for the controlled phase shifters are also established. The series and parallel transformer parameters are designed. Taking Jiangsu power grid as an example, 500 kV TCPST is applied in the area near Jinsu UHVDC project. The application effect of TCPST is analyzed. Simulation results show that TCPST can solve the problems of DC power reject in small load mode and the DC power output in large load mode, which reduce load losses by 1000 MW after UHVDC bipolar blocking. At the same time the recovery voltage of Suzhou South grid can be improved by 5~10 kV after the failure of power grid. The application of the TCPST can have a positive effect on the protection of security and economy of power grid.

Key words: controllable phase shifter (TCPST), flow flow control, ultra-high direct current (UHVDC), bipolar blocking

中图分类号:

TM744

卫鹏, 周前, 朱鑫要, 嵇托, 张宁宇. 可控移相器对特高压交直流接入受端电网影响研究[J]. 中国电力, 2018, 51(7): 7-12.

WEI Peng, ZHOU Qian, ZHU Xinyao, JI Tuo, ZHANG Ningyu. Research on Impact of TCPST on Receiving-End Power Grid with UHVAC and UHVDC Accessing[J]. Electric Power, 2018, 51(7): 7-12.

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https://www.electricpower.com.cn/CN/Y2018/V51/I7/7

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可控移相器对特高压交直流接入受端电网影响研究

Research on Impact of TCPST on Receiving-End Power Grid with UHVAC and UHVDC Accessing

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可控移相器对特高压交直流接入受端电网影响研究

Research on Impact of TCPST on Receiving-End Power Grid with UHVAC and UHVDC Accessing

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