基于马尔可夫过程的柔性直流输电系统可靠性分析
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摘要
概述柔性直流输电技术(Voltage Sourced Converters High Voltage Direct Current,VSC-HVDC)的研究现状,从模块化多电平换流器(Modular Multi-level Converter,MMC)的子模块(SM)冗余配置方法、系统拓扑结构、控制保护以及故障分析等方面进行阐述。根据实际情况说明该研究的必要性。介绍并推导马尔可夫过程,结合马尔可夫过程针对某直流输电工程的主接线方式提出一种可靠性分析模型。最后,通过在Matlab中编写程序实现了对所建模型的计算。所得结果和ABB公司的统计资料进行对比,验证了所提出的方法适用于柔性直流输电系统可靠性分析。
This paper summarizes the status quo of studying VSC-HVDC, and discusses the redundant configuration methods of the Modular Multi-level Converter(MMC)'s Sub-Module(SM), and topological structure, control and protection, fault analysis, etc. The necessity of this study is justifiable on the grounds of realities. Moreover, this paper introduces and deduces the Markov process and applies it to propose a reliability analysis model for the main wiring diagram of a HVDC transmission project. Finally, the calculation of the model is carried out by the program written in Matlab. By comparing the results with the statistical data of ABB, it testifies that the method proposed is suitable for the reliability analysis of VSC-HVDC system.
This paper summarizes the status quo of studying VSC-HVDC, and discusses the redundant configuration methods of the Modular Multi-level Converter(MMC)'s Sub-Module(SM), and topological structure, control and protection, fault analysis, etc. The necessity of this study is justifiable on the grounds of realities. Moreover, this paper introduces and deduces the Markov process and applies it to propose a reliability analysis model for the main wiring diagram of a HVDC transmission project. Finally, the calculation of the model is carried out by the program written in Matlab. By comparing the results with the statistical data of ABB, it testifies that the method proposed is suitable for the reliability analysis of VSC-HVDC system.
引文
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[15]高强,吴华华,陈楚楚,等.舟山多端柔性直流系统环流抑制和交流故障穿越能力分析[J].电网与清洁能源,2016,32(6):62-67.GAO Qiang,WU Huahua,CHEN Chuchu,et al.Circulating current suppressing and ac faults ride-through capability analysis of Zhoushan MMC-MTDC system[J].Power System and Clean Energy,2016,32(6):62-67.
[16]李斌,李晔,何佳伟,等.基于模块化多电平的柔性直流系统故障稳态特性分析[J].电力系统保护与控制,2016,44(21):1-8.LI Bin,LI Ye,HE Jiawei,et al.Stable fault characteristic analysis of the DC system based on modular multilevel converter[J].Power System Protection and Control,2016,44(21):1-8.
[17]WESTERWELLER T,FRIEDRICH K,ARMONIES U,et al.Trans bay cable world's first HVDC system using multi-level voltage sourced converter[C]//Proceedings of CIGRE,2010,Paris,France:1-6.
[18]Babcock,Brown.Trans Bay Cable Project[R].Presentation,2004.
[19]程林,何剑.电力系统可靠性原理和应用[M].北京:清华大学出版社,2015.
[20]丁明,毕锐,王京景.基于FD法和模型组合的柔性直流输电可靠性评估[J].电力系统保护与控制,2008,36(21):33-37.DING Ming,BI Rui,WANG Jingjing.FD method and combined model for reliability assessment of HVDC flexible[J].Power System Protection and Control,2008,36(21):33-37.
[21]孙宇斌,刘文霞,裘剑明,等.计及备用元件的柔性直流输系统可靠性评估方法[J].现代电力,2013,30(1):8-12.SUN Yubin,LIU Wenxia,QIU Jianming,et al.The reliability evaluation method for VSC-HVDC system by considering of standby components[J].Modern Electric Power,2013,30(1):8-12.
[2]范心明,管霖,夏成军,等.多电平柔性直流输电在风电接入中的应用[J].高电压技术,2013,39(2):497-504.FAN Xinming,GUAN Lin,XIA Chengjun,et al.Multilevel VSC-HVDC applied in wind power integration[J].High Voltage Engineering,2013,39(2):497-504.
[3]MARQUARDT R,LESNICAR A,HILDINGER J.Modulares Stromrichterkonzept für Netzkupplungsanwendung bei hohen Spannungen[C]//ETG-Fachtagung,2002,Bad Nauheim,Germany:1-7.
[4]LESNICAR A,MARQUARDT R.A new modular voltage source inverter topology[C]//European Conference on Power Electronics and Applications,2003,Toulouse,France:1-10.
[5]MARQUARDT R,LESNICAR A.New concept for high voltage-modular multilevel converter[C]//Power Electronics Specialists Conference,2004,Aachen,Germany:1-5.
[6]王秀丽,郭静丽,庞辉,等.模块化多电平换流器的结构可靠性分析[J].中国电机工程学报,2016,36(7):1908-1914.WANG Xiuli,GUO Jingli,PANG Hui,et al.Structural reliability analysis of modular multi-level converters[J].Proceedings of the CSEE,2016,36(7):1908-1914.
[7]王朝亮,赵成勇,许建中.模块化多电平换流器的子模块冗余配置计算方法[J].电力系统自动化,2013,37(16):103-107.WANG Zhaoliang,ZHAO Chengyong,XU Jianzhong.A method for calculating sub-module redundancy configurations in modular multilevel converters[J].Automation of Electric Power Systems,2013,37(16):103-107.
[8]张建坡,赵成勇,孙海峰,等.模块化多电平换流器改进拓扑结构及其应用[J].电工技术学报,2014,29(8):173-179.ZHANG Jianpo,ZHAO Chengyong,SUN Haifeng,et al.Improved topology of modular multilevel converter and application[J].Transactions of China Electrotechnical Society,2014,29(8):173-179.
[9]蒋冠前,李志勇,杨慧霞,等.柔性直流输电系统拓扑结构研究综述[J].电力系统保护与控制,2015,43(15):145-153.JIANG Guanqian,LI Zhiyong,YANG Huixia,et al.Research review on topological structure of flexible HVDC system[J].Power System Protection and Control,2015,43(15):145-153.
[10]葛少云,季时宇,刘洪,等.基于多层次协同分析的高中压配电网可靠性评估[J].电工技术学报,2016,31(19):172-181.GE Shaoyun,JI Shiyu,LIU Hong,et al.Reliability assessment of high-medium voltage level distribution networks based on cooperative analysis of multi-level networks[J].Transactions of China Electrotechnical Society,2016,31(19):172-181.
[11]王杨,谢开贵,胡博,等.基于时序模拟的离网型微网可靠性分析[J].电工技术学报,2016,31(6):206-211.WANG Yang,XIE Kaigui,HU Bo,et al.Reliability analysis of islanded microgrid based on sequential simulation[J].Transactions of China Electrotechnical Society,2016,31(6):206-211.
[12]刘晟,廖志伟,刘利平,等.计及可靠性理论的电力系统脆弱线路评估[J].电网与清洁能源,2016,32(6):16-21,27.LIU Sheng,LIAO Zhiwei,LIU Liping,et al.Vulnerability assessment for lines in power system based on reliability theory[J].Power System and Clean Energy,2016,32(6):16-21,27.
[13]付艳,黄金海,吴庆范,等.基于MMC多端柔性直流输电保护关键技术研究[J].电力系统保护与控制,2016,44(18):133-139.FU Yan,HUANG Jinhai,WU Qingfan,et al.Key technologies research based on multi-terminal MMCHVDC protection[J].Power System Protection and Control,2016,44(18):133-139.
[14]钱甜甜,苗世洪,刘子文,等.基于PCHD模型的VSC-HVDC的无源控制及滑模辅助改进控制[J].电工技术学报,2016,31(3):138-144.QIAN Tiantian,MIAO Shihong,LIU Ziwen,et al.Reliability analysis of islanded microgrid based on sequential simulation[J].Transactions of China Electrotechnical Society,2016,31(3):138-144.
[15]高强,吴华华,陈楚楚,等.舟山多端柔性直流系统环流抑制和交流故障穿越能力分析[J].电网与清洁能源,2016,32(6):62-67.GAO Qiang,WU Huahua,CHEN Chuchu,et al.Circulating current suppressing and ac faults ride-through capability analysis of Zhoushan MMC-MTDC system[J].Power System and Clean Energy,2016,32(6):62-67.
[16]李斌,李晔,何佳伟,等.基于模块化多电平的柔性直流系统故障稳态特性分析[J].电力系统保护与控制,2016,44(21):1-8.LI Bin,LI Ye,HE Jiawei,et al.Stable fault characteristic analysis of the DC system based on modular multilevel converter[J].Power System Protection and Control,2016,44(21):1-8.
[17]WESTERWELLER T,FRIEDRICH K,ARMONIES U,et al.Trans bay cable world's first HVDC system using multi-level voltage sourced converter[C]//Proceedings of CIGRE,2010,Paris,France:1-6.
[18]Babcock,Brown.Trans Bay Cable Project[R].Presentation,2004.
[19]程林,何剑.电力系统可靠性原理和应用[M].北京:清华大学出版社,2015.
[20]丁明,毕锐,王京景.基于FD法和模型组合的柔性直流输电可靠性评估[J].电力系统保护与控制,2008,36(21):33-37.DING Ming,BI Rui,WANG Jingjing.FD method and combined model for reliability assessment of HVDC flexible[J].Power System Protection and Control,2008,36(21):33-37.
[21]孙宇斌,刘文霞,裘剑明,等.计及备用元件的柔性直流输系统可靠性评估方法[J].现代电力,2013,30(1):8-12.SUN Yubin,LIU Wenxia,QIU Jianming,et al.The reliability evaluation method for VSC-HVDC system by considering of standby components[J].Modern Electric Power,2013,30(1):8-12.