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基于逆变侧定电压控制的HVDC系统稳态和暂态响应特性研究
引用本文:刘颖,戴栋,汪娟娟,韩永霞,李立,傅闯.基于逆变侧定电压控制的HVDC系统稳态和暂态响应特性研究[J].继电器,2017,45(24):1-8.
作者姓名:刘颖  戴栋  汪娟娟  韩永霞  李立  傅闯
作者单位:华南理工大学电力学院,广东 广州 510641,华南理工大学电力学院,广东 广州 510641,华南理工大学电力学院,广东 广州 510641,华南理工大学电力学院,广东 广州 510641,华南理工大学电力学院,广东 广州 510641,南方电网科学研究院,广东 广州 510080
基金项目:国家自然科学基金(51377061)
摘    要:为测试逆变侧采用定电压控制和定关断角控制对直流输电系统稳态和暂态性能的影响,在CIGRE高压直流标准测试模型原有控制系统中增加了定电压控制模块,即整流侧采用定电流控制,逆变侧采用定电压、定电流和定关断角控制相互配合的控制方式。在PSCAD/EMTDC仿真平台中对其整流侧和逆变侧三相短路故障下的控制器特性进行了稳态及暂态仿真分析,并与相应的CIGRE标准模型暂态响应特性进行了对比。结果表明逆变侧增加定电压控制方式能够提高直流输电系统在交流故障扰动下的性能,减少换相失败的发生几率。

关 键 词:HVDC  CIGRE高压直流标准测试模型  定电压控制  换相失败  暂态响应
收稿时间:2016/11/29 0:00:00
修稿时间:2017/1/3 0:00:00

Transient and steady responses in HVDC system based on constant voltage control at inverter side
LIU Ying,DAI Dong,WANG Juanjuan,HAN Yongxi,LI Licheng and FU Chuang.Transient and steady responses in HVDC system based on constant voltage control at inverter side[J].Relay,2017,45(24):1-8.
Authors:LIU Ying  DAI Dong  WANG Juanjuan  HAN Yongxi  LI Licheng and FU Chuang
Affiliation:School of Electric Power, South China University of Technology, Guangzhou 510641, China,School of Electric Power, South China University of Technology, Guangzhou 510641, China,School of Electric Power, South China University of Technology, Guangzhou 510641, China,School of Electric Power, South China University of Technology, Guangzhou 510641, China,School of Electric Power, South China University of Technology, Guangzhou 510641, China and Electric Power Research Institute, China Southern Power Grid Co., Ltd., Guangzhou 510080, China
Abstract:To test the effects of constant voltage control and constant extinction angle control on HVDC steady and transient performance, the control system of CIGRE HVDC benchmark model is complemented by a voltage control module, i. e. a constant current control is used at rectifier side, while a coordination control method combining voltage control, constant current control and constant extinction angle control is employed at inverter side. Steady and transient characteristics of the controller under three-phase short circuit fault at both rectifier and inverter sides are analyzed by using PSCAD/EMTDC simulations. The results show that, in comparison with CIGRE HVDC benchmark model, adding constant voltage control at inverter side could enhance the performance of HVDC system under the fault of AC side and lower the risk of commutation failure. This work is supported by National Natural Science Foundation of China (No.51377061).
Keywords:HVDC  CIGRE HVDC benchmark model  constant voltage control  commutation failure  transient response
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