±1 100kV特高压多端馈入直流系统协调控制

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摘要多端馈入直流（MTDC）系统连接多个换流站,各个换流站之间必须相互协调控制。结合±1 100kV特高压直流输电工程,对单端送出、双端馈入的直流输电系统进行研究,在基于送端定触发角控制的情况下,分析熄弧角的影响因素。在保证充裕熄弧角的情况下,提出了基于电流裕度的主从式控制策略,实现了各个换流站之间的协调配合。在PSCAD/EMTDC仿真平台中搭建相应的双端馈入直流输电系统模型,并进行仿真。仿真结果证明了所提控制方法的有效性。

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	杜旭
	韩民晓
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	张鑫

关键词 ：多端馈入直流, 协调控制, 电流裕度, 主从式控制

Abstract：Multi-terminal direct current system (MTDC) connects a plurality of converter station. Coordinated control is necessary between converter stations. Combining ±1 100kV UHVDC transmission project,a HVDC transmission system including one single sending-end and two receiving-ends in-feed is researched. In the case of constant firing angle of the sending-end, factors influencing the extinction angle are analyzed. In ensuring adequate extinction angle case,propose a master-slave control strategy based on current margin, achieving coordination between each converter station. A corresponding double- terminals infeed MTDC model is built and simulated in PSCAD/EMTDC. Simulation results show the effectiveness of the proposed control method.

Key words： Multi-terminal infeed direct current, coordinated control, current margin, master-slave control

出版日期: 2017-01-04

PACS:

TM726

作者简介: 杜旭男,1988年生,硕士研究生,研究方向为高压直流输电及其控制。E-mail: dx_3204@163.com（通信作者）韩民晓男,1963年生,教授,博士生导师,研究方向为直流输电、柔性交流输电以及电能质量分析等。E-mail: hanminxiao@263.net

引用本文:

杜旭, 韩民晓, 田春筝, 司瑞华, 张鑫. ±1 100kV特高压多端馈入直流系统协调控制[J]. 电工技术学报, 2016, 31(增刊): 176-183. Du Xu¹, Han Minxiao¹, Tian Chunzheng², Si Ruihua², Zhang Xin³. Coordinated Control Research of ±1 100kV Ultra High Voltage Multi-Terminal Direct Current System. Transactions of China Electrotechnical Society, 2016, 31(增刊): 176-183.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I增刊/176

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