俞露杰;赵成勇;

• 1:新能源电力系统国家重点实验室(华北电力大学)

摘要(Abstract)：

在借鉴传统高压直流三极输电和模块化多电平换流器型直流输电(modular multilevel converter based high voltage direct current,MMC-HVDC)的基础上,提出基于MMC的高压直流三极输电技术。该技术采用五电平子模块来满足极3直流电压极性和直流电流方向周期性变化的要求。首先分析了五电平子模块的工作模式和闭锁后故障等值电路,而后分析了基于MMC的高压直流三极输电的电流调制策略,设计了MMC相应的控制策略。最后基于PSCAD/EMTDC搭建了基于MMC的高压直流三极输电系统,仿真算例结果验证了该系统的可行性。

关键词(KeyWords)： 五电平子模块;模块化多电平换流器;柔性直流输电;高压直流三极输电;交直流转换;电流调制

Abstract:

Keywords:

基金项目(Foundation): 国家863高技术基金项目(2013AA050105)~~

作者(Author): 俞露杰;赵成勇;

Email:

DOI: 10.13335/j.1000-3673.pst.2014.04.003

参考文献(References)：

• [1]Haeusler M,Schlayer G,Fitterer G.Conveting AC power lines to DC for higher transmission ratings[J].ABB Review,1997(3):4-11.
• [2]Barthold L O,Harmut H.Conversion of AC transmission lines to HVDC using current modulation[C]//Power Engineering Society Inaugural Conference and Exposition in Africa.Durban,South Africa:IEEE,2005:26-32.
• [3]Barthold L O,Clark H K,Woodford D.Principles and applications of current-modulation HVDC transmission system[C]//Transmission and Distribution Conference and Exhibition.Dallas,Tex:IEEE,2006:1429-1435.
• [4]Barthold L O.Current modulation of direct current transmission lines.US:Patents6714427B1[P].2004-03-30.
• [5]吴婧,文俊,温家良,等.高压直流三极输电特性分析[J].电网技术,2013,37(1):71-76.Wu Jing,Wen Jun,Wen Jialiang,et al.Characteristic analysis of tripole HVDC power transmission[J].Power System Technology,2013,37(1):71-76(in Chinese).
• [6]文俊,温家良,殷威扬,等.高压直流三极输电技术[J].电网技术,2013,37(8):2332-2342.Wen Jun,Wen Jialiang,Yin Weiyang,et al.Technology of tripole HVDC transmission[J].Power System Technology,2013,37(8):2332-2342(in Chinese).
• [7]Lesnicar A,Marquardt R.An innovative modular multilevel converter topology suitable for a wide power range[C]//2003 IEEE Bologna Power Tech Conference.Bologna,Italy:IEEE,2003.
• [8]徐政.柔性直流输电系统[M].北京:中国机械出版社,2012:1-5.
• [9]Marquardt R.Modular multilevel converter:an universal concept for HVDC-networks and extended DC-bus-applications[C]//2010International Power Electronics Conference(IPEC).Sapporo,Japan:IEEE,2010:502-507.
• [10]Angquist L,Antonopoulos A.Open-loop control of modular multilevel converters using estimation of stored energy[J].IEEE Transactions on Industry Application,2011,47(6):2516-2524.
• [11]许建中,赵成勇.模块化多电平换流器电容电压优化平衡控制算法[J].电网技术,2012,36(6):256-261.Xu Jianzhong,Zhao Chengyong.An optimized capacitance voltage balancing algorithm for modularized multilevel converter[J].Power System Technology,2012,36(6):256-261(in Chinese).
• [12]周月宾,江道灼,郭捷,等.模块化多电平换流器型直流输电系统的启停控制[J].电网技术,2012,36(3):204-209.Zhou Yuebin,Jiang Daozhuo,Guo Jie,et al.Start/stop control of modular multilevel converter based HVDC transmission system[J].Power System Technology,2012,36(3):204-209(in Chinese).
• [13]张建坡,赵成勇,孙一莹,等.基于电压源换流器型直流输电拓扑结构和调制策略[J].电网技术,2013,37(6):1732-1738.Zhang Jianpo,Zhao Chengyong,Sun Yiying,et al.Research on topological structure and control strategy for voltage source converter-based direct current power transmission[J].Power System Technology,2013,37(6):1732-1738(in Chinese).
• [14]Akureza Nami,Liwei Wang.Five level cross connected cell for cascaded converters[C]//Power Electronic and Applications.France:Power Electronic and Applications,2013:1-9.
• [15]赵成勇,许建中,李探.全桥型MMC-MTDC直流故障穿越能力分析[J].中国科学:技术科学,2013,43(1):106-114.Zhao Chengyong,Xu Jianzhong,Li Tan.DC faults ride-through capability analysis of full-bridge MMC-MTDC system[J].Science China:Technological Sciences,2013,43(1):106-114(in Chinese).
• [16]汤广福.基于电压源换流器的高压直流输电技术[M].北京:中国电力出版社,2010:136-141.
• [17]赵成勇,李金丰,李广凯.基于有功和无功独立调节的VSC-HVDC控制策略[J].电力系统自动化,2005,29(9):20-24.Zhao Chengyong,Li Jinfeng,Li Guangkai.VSC-HVDC control strategy based on respective adjustment of active and reactive power[J].Automation of Electric Power Systems,2005,29(9):20-24(in Chinese).
• [18]陈谦,唐国庆,胡铭.采用dq0坐标的VSC-HVDC稳态模型与控制器设计[J].电力系统自动化,2004,28(16):61-66.Chen Qian,Tang Guoqing,Hu Ming.Steady-state model and controller design of a VSC-HVDC converter based on dq0-axis[J].Automation of Electric Power Systems,2004,28(16):61-66(in Chinese).
• [19]管敏渊,徐政,屠卿瑞,等.模块化多电平换流器型直流输电的调制策略[J].电力系统自动化,2010,34(2):48-52.Guan Minyuan,Xu Zheng,Tu Qingrui,et al.Nearest level modulation for modular multilevel converters in HVDC transmission[J].Automation of Electric Power Systems,2010,34(2):48-52(in Chinese).