喻锋;王西田;林卫星;解大;

• 1:电力传输与功率变换控制教育部重点实验室(上海交通大学)
• 2:强电磁工程与新技术国家重点实验室(华中科技大学)

摘要(Abstract)：

针对模块化多电平换流器(modular multilevel converter,MMC)电磁暂态仿真耗时过长的问题,提出了2种MMC快速仿真模型。通过分析MMC子模块原理,提出将MMC桥臂等效为自定义数值计算模块与受控电压源组合的数值计算详细模型;并在该模型的基础上设计了一种将独立子模块电磁暂态模型和一般子模块数值计算模型结合的混合模型仿真方法,弥补了数值计算模型难以模拟子模块电磁暂态过程的缺陷。为了进一步提高模型的仿真速度,通过简化MMC的电压均衡控制及子模块状态的差异性,建立了数值计算平均值模型。在PSCAD/EMTDC上搭建MMC-HVDC模型,对所提出的快速仿真模型及仿真方法的有效性进行了验证。

关键词(KeyWords)： 模块化多电平换流器;数值计算模型;平均值模型;混合模型仿真方法;电磁暂态仿真

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51277119)~~

作者(Author): 喻锋;王西田;林卫星;解大;

Email:

DOI: 10.13335/j.1000-3673.pst.2015.01.039

参考文献(References)：

• [1]杨晓峰,林智钦,郑琼林,等.模块组合多电平变换器的研究综述[J].中国电机工程学报,2013,33(6):1-15.Yang Xiaofeng,Lin Zhiqin,Zheng Trillion Q.,et al.A review of modular multilevel converters[J].Proceedings of the CSEE,2013,33(6):1-15(in Chinese).
• [2]Qingrui Tu,Zheng Xu.Impact of sampling frequency on harmonic distortion for modular multilevel converter[J].IEEE Transactions on Power Delivery,2011,26(1):298-306.
• [3]Teeuwsen S P.Modeling the trans bay cable project as voltagesourced converter with modular multilevel converter design[C]//Power and Energy Society General Meeting.Detroit,Michigan,USA:IEEE,2011:1-8.
• [4]阎发友,汤广福,贺之渊,等.基于MMC的多端柔性直流输电系统改进下垂控制策略[J].中国电机工程学报,2014,34(3):397-404.Yan Fayou,Tang Guangfu,He Zhiyuan,et al.An improved droop control strategy for MMC-based VSC-MTDC systems[J].Proceedings of the CSEE,2014,34(3):397-404(in Chinese).
• [5]汤广福,罗湘,魏晓光.多端直流输电与直流电网技术[J].中国电机工程学报,2013,33(10):8-17.Tang Guangfu,Luo Xiang,Wei Xiaoguang.Multi-terminal HVDC and DC-grid technology[J].Proceedings of the CSEE,2013,33(10):8-17(in Chinese).
• [6]张文亮,汤涌,曾南超.多端高压直流输电技术及应用前景[J].电网技术,2010,34(9):1-6.Zhang Wenliang,Tang Yong,Zeng Nanchao.Multi-terminal HVDC transmission technologies and its application protects in China[J].Power System Technology,2010,34(9):1-6(in Chinese).
• [7]王姗姗,周孝信,汤广福,等.模块化多电平电压源换流器的数学模型[J].中国电机工程学报,2011,31(24):1-8.Wang Shanshan,Zhou Xiaoxin,Tang Guangfu,et al.Modeling of modular multi-level voltage source converter[J].Proceedings of the CSEE,2011,31(24):1-8(in Chinese).
• [8]管敏渊,徐政.模块化多电平换流器的快速电磁暂态仿真方法[J].电力自动化设备,2012,32(6):36-40.Guan Minyuan,Xu Zheng.Fast electro-magnetic transient simulation method for modular multilevel converter[J].Electric Power Automation Equipment,2012,32(6):36-40(in Chinese).
• [9]许建中,赵成勇,刘文静.超大规模MMC电磁暂态仿真提速模型[J].中国电机工程学报,2013,33(10):114-120.Xu Jianzhong,Zhao Chengyong,Liu Wenjing.Accelerated model of ultra-large scale MMC in electromagnetic transient simulations[J].Proceedings of the CSEE,2013,33(10):114-120(in Chinese).
• [10]Gnanarathna U N,Gole A M,Jayasinghe R P.Efficient modeling of modular multilevel HVDC converters(MMC)on electromagnetic transient simulation programs[J].IEEE Transactions on Power Delivery,2011,26(1):316-324.
• [11]Peralta J,Saad H,Dennetiere S,et al.Detailed and averaged models for a 401-level MMC–HVDC system[J].IEEE Transactions on Power Delivery,2012,27(3):1501-1508.
• [12]Saad H,Peralta J,Dennetiere S,et al.Dynamic averaged and simplified models for MMC-based HVDC transmission systems[J].IEEE Transactions on Power Delivery,2013,28(3):1723-1730.
• [13]Saad H,Dennetière S,Mahseredjian J,et al.Modular multilevel converter models for electromagnetic transients[J].IEEE Transactions on Power Delivery,2014,29(3):1481-1489.
• [14]赵昕,赵成勇,李广凯,等.采用载波移相技术的模块化多电平换流器电容电压平衡控制[J].中国电机工程学报,2011,31(21):48-55.Zhao Xin,Zhao Chengyong,Li Guangkai,et al.Submodule capacitance voltage balancing of modular multilevel converter based on carrier phase shifted spwm technique[J].Proceedings of the CSEE,2011,31(21):48-55(in Chinese).
• [15]潘武略,徐政,张静,等.电压源换流器型直流输电换流器损耗分析[J].中国电机工程学报,2008,28(21):7-14.Pan Wulüe,Xu Zheng,Zhang Jing,et al.Dissipation analysis of VSC-HVDC converter[J].Proceedings of the CSEE,2008,28(21):7-14(in Chinese).
• [16]刘栋,汤广福,贺之渊,等.基于面积等效法的模块化多电平换流器损耗分析[J].电网技术,2012,36(4):197-201.Liu Dong,Tang Guangfu,He Zhiyuan,et al.Loss evaluation for modular multilevel converter based on equivalent-area modulation[J].Power System Technology,2012,36(4):197-201(in Chinese).
• [17]Moon J W,Kim C S,Park J W,et al.Circulating current control in MMC under the unbalanced voltage[J].IEEE Transactions on Power Delivery,2013,28(3):1952-1959.
• [18]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).
• [19]王姗姗,周孝信,汤广福,等.模块化多电平换流器HVDC直流双极短路子模块过电流分析[J].中国电机工程学报,2011,31(1):1-7.Wang Shanshan,Zhou Xiaoxin,Tang Guangfu,et al.Analysis of submodule overcurrent caused by DC pole-to-pole fault in modular multilevel converter HVDC system[J].Proceedings of the CSEE,2011,31(1):1-7(in Chinese).
• [20]Son G T,Lee H J,Nam T S,et al.Design and control of a modular multilevel HVDC converter with redundant power modules for noninterruptible energy transfer[J].IEEE Transactions on Power Delivery,2012,27(3):1611-1619.