北京四方继保自动化股份有限公司,北京 100085
刘静佳(1988 —),女,河南舞钢人,硕士,主要研究方向为高压直流输电控制策略(E-mail:liujingjia1016@126.com);
梅红明(1984 —),男,湖北武汉人,高级工程师,博士,主要研究方向为电力电子及直流输电;
刘 树(1981 —),男,天津人,高级工程师,硕士,主要研究方向为电力电子及直流输电;
于华龙(1988—),男,天津人,博士,主要研究方向为高压直流输电控制策略;
王皆庆(1984—),男,山西临汾人,工程师,硕士,主要研究方向为电力电子及直流输电。
收稿:2019-01-17,
修回:2019-08-13,
纸质出版:2019-09-10
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刘静佳,梅红明,刘树等.特高压多端混合直流输电系统阀组计划投/退控制方法[J].电力自动化设备,2019,39(09):158-165.
LIU Jingjia,MEI Hongming,LIU Shu,et al.Planned valve group entry/exit control method for UHV multi-terminal hybrid HVDC system[J].Electric Power Automation Equipment,2019,39(09):158-165.
刘静佳,梅红明,刘树等.特高压多端混合直流输电系统阀组计划投/退控制方法[J].电力自动化设备,2019,39(09):158-165. DOI: 10.16081/j.epae.201909032.
LIU Jingjia,MEI Hongming,LIU Shu,et al.Planned valve group entry/exit control method for UHV multi-terminal hybrid HVDC system[J].Electric Power Automation Equipment,2019,39(09):158-165. DOI: 10.16081/j.epae.201909032.
现有的阀组投入/退出控制策略只适用于特高压两端常规直流输电系统,不能适用于特高压柔性直流输电系统,更不能适用于特高压多端混合直流输电系统。为此,以乌东德电站送电广东广西工程为背景,提出基于混合桥模块化多电平换流器的阀组计划投入/退出控制方法,并对现有常规直流阀组计划投/退控制方法进行改进。在RTDS仿真试验平台上进行硬件闭环测试,结果表明所提阀组计划投入/退出控制方法能够平稳、快速地完成特高压多端混合直流输电系统阀组的计划投/退。
The existing valve group entry/exit control strategies are only suitable for two-terminal LCC-UHVDC(Line Commutated Converter Ultra-High Voltage DC) transmission system,but cannot be used in VSC-UHVDC(Voltage Source Converter Ultra-High Voltage DC) transmission system and multi-terminal hybrid UHVDC transmission system,for which,based on the background of the project transmitting power from Wudongde power station to Guangdong and Guangxi,a planned valve group entry/exit control method based on hybrid bridge MMC(Modular Multilevel Converter) is proposed,and the existing planned valve group entry/exit control method for LCC-HVDC is improved. The hardware closed-loop test is performed in RTDS simulation test platform,and results show that the proposed method can smoothly and quickly complete the planned valve group entry/exit in multi-terminal hybrid UHVDC transmission system.
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