电工技术学报  2020, Vol. 35 Issue (17): 3678-3690    DOI: 10.19595/j.cnki.1000-6753.tces.191180
电力电子 |
含同步调相机的直流受端换流站全工况下多模式协调控制策略
李辉1, 王震2, 周挺3, 毛文奇3, 汪霄飞1
1.国网湖南省电力有限公司电力科学研究院 长沙 410007
2.长沙理工大学电气与信息工程学院 长沙 410076
3.国网湖南省电力有限公司 长沙 410007
Multi-Mode Coordinated Control Strategy for DC Receiving Converter Station with Synchronous Condenser under Full Operating Conditions
Li Hui1, Wang Zhen2, Zhou Ting3, Mao Wenqi3, Wang Xiaofei1
1. State Grid Hunan Electric Power Corporation Limited Research Institute Changsha 410007 China
2. School of Electrical and Information Engineering Changsha University of Science & Technology Changsha 410076 China
3. State Grid Hunan Electric Power Corporation Limited Changsha 410007 China
全文: PDF (2487 KB)   HTML
输出: BibTeX | EndNote (RIS)      
摘要 

针对当前缺乏同步调相机(SC)与直流控保系统和换流站内无功补偿小组之间协调控制的研究,该文介绍了电网换相换流器的高压直流输电系统(LCC-HVDC)受端换流站准稳态模型,推导出SC端电压与励磁电流If的关系式,提出一种含SC的直流受端换流站全工况下多模式协调控制策略。策略包括防止暂态电压超限的无功小组投切控制模式、大幅增加自动电压控制(AVC)指令调节范围的AVC模式和故障下抑制换相失败发生的暂态控制模式。根据实际工程参数,在PSCAD中建立了祁韶±800kV特高压直流输电系统模型,并在投切滤波器、AVC下发指令及交流故障等多工况下进行仿真验证,结果表明所提策略有效改善了含SC的受端系统运行特性,提高了电压稳定性。

服务
把本文推荐给朋友
加入我的书架
加入引用管理器
E-mail Alert
RSS
作者相关文章
李辉
王震
周挺
毛文奇
汪霄飞
关键词 同步调相机电网换相换流器的高压直流输电系统受端换流站多模式协调控制换相失败    
Abstract

Aiming at the lack of research on the cooperation between synchronous condenser (SC) and DC control system and reactive power group in converter station,the quasi-steady state model of the line commutated converter-high voltage direct current (LCC-HVDC) receiving converter station is introduced,and the relationship between the SC terminal voltage and the excitation current If is derived,a multi-mode coordinated control strategy for DC receiving end with SC under full conditions is proposed. Which includes a reactive group switching control mode that prevents transient voltage exceed the limit,an automatic voltage control (AVC) mode that increases the AVC command adjustment range,and a transient control mode that suppresses the occurrence of commutation failure under system fault. The model of Qishao ±800kV UHVDC transmission system is established in PSCAD,and the simulation is verified under the multi-conditions. The results show that the proposed strategy effectively improves the operating characteristics of the SC-containing receiving system.

Key wordsSynchronous condenser    line commutated converter-high voltage direct current (LCC-HVDC)    receiving converter station    multi-mode coordination control    commutation failure   
收稿日期: 2019-09-17     
PACS: TM721.1  
基金资助:

国家电网公司科技项目(52153218000H)和湖南省电力公司科技项目(5216A5170013)资助

通讯作者: 李辉,男,1983年生,博士,高级工程师,研究方向为高压直流输电、电力系统继电保护及自动化。E-mail: lihui4219@sina.com   
作者简介: 王震,男,1995年生,硕士研究生,研究方向为高压直流输电工程。E-mail: 1510563552@qq.com
引用本文:   
李辉, 王震, 周挺, 毛文奇, 汪霄飞. 含同步调相机的直流受端换流站全工况下多模式协调控制策略[J]. 电工技术学报, 2020, 35(17): 3678-3690. Li Hui, Wang Zhen, Zhou Ting, Mao Wenqi, Wang Xiaofei. Multi-Mode Coordinated Control Strategy for DC Receiving Converter Station with Synchronous Condenser under Full Operating Conditions. Transactions of China Electrotechnical Society, 2020, 35(17): 3678-3690.
链接本文:  
https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.191180          https://dgjsxb.ces-transaction.com/CN/Y2020/V35/I17/3678