褚衍超;黄守道;孔凡蓬;廖武;

• 1:国家电能变换与控制工程技术研究中心(湖南大学)
• 2:南车株洲电力机车研究所有限公司

摘要(Abstract)：

模块化多电平高压直流输电系统(modular multilevel converter-high voltage direct current,MMC-HVDC)通常采用基于比例积分(proportional integral,PI)的双闭环矢量控制,而PI调节存在响应速度慢、dq电流需要旋转解耦等问题。为此文章提出在两相静止坐标下基于内模控制的MMCHVDC稳态控制方案。首先分析了两相静止坐标下的MMCHVDC数学模型,然后结合内模控制的特性,对电流内环的控制结构和参数进行设计,并将内模内环与PI外环结合构造出双闭环控制结构。最后在Matlab/Simulink中搭建了MMC-HVDC系统模型,对多种工况进行仿真。仿真结果表明,所设计的控制器能够有效抑制母线电压波动,并能对负荷变化快速响应,提高了系统的鲁棒性。

关键词(KeyWords)： 模块化多电平换流器;高压直流;内模控制;两相静止坐标系

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51377050);; 国际科技合作项目(2011DFA62240)~~

作者(Author): 褚衍超;黄守道;孔凡蓬;廖武;

Email:

DOI: 10.13335/j.1000-3673.pst.2015.08.024

参考文献(References)：

• [1]Flourentzo N,Agelidis V G,Demetriades G D.VSC based HVDC power transmission systems:an overview[J].IEEE Transactions on Power Electronics,2009,24(3):592-602.
• [2]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):1-14.Yang Xiaofeng,Lin Zhiqin,Zheng Qionglin,et al.A review of modular multilevel converters[J].Proceedings of the CSEE,2013,33(6):1-14(in Chinese).
• [3]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.Modelling of modular multi-level voltage source converter[J].Proceedings of the CSEE,2011,31(24):1-8(in Chinese).
• [4]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 converterbased direct current power transmission[J].Power System Technology,2013,37(6):1732-1738(in Chinese).
• [5]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,2011,32(27):48-55.Zhao Xin,Zhao Chengyong,Li Guankai,et al.Submodule capacitance voltage balancing of modular multilevel converter based on carrier phase shifted SPWM technique[J].Proceedings of the CSEE,2011,32(27):48-55(in Chinese).
• [6]范心明,管霖,何健明.多电平柔性直流输电定有功功率与频率辅助控制[J].电网技术,2012,36(9):182-186.Fan Xinming,Guan Lin,He Jianming.Constant active power and frequency auxiliary control for multilevel VSC-HVDC power transmission[J].Power System Technology,2012,36(9):182-186(in Chinese).
• [7]管敏渊,徐政.向无源网络供电的MMC型直流输电系统建模与控制[J].电工技术学报,2013,28(2):255-263.Guan Minyuan,Xu Zheng.Modeling and control of modular multilevel converter based VSC-HVDC system connected to passive networks[J].Transactions of China Electro Technical Society,2013,28(2):255-263(in Chinese).
• [8]蔡新红,赵成勇,庞辉,等.基于MMC离散数学模型的MMC-HVDC系统直流电压控制[J].电网技术,2013,37(9):2403-2409.Cai Xinhong,Zhao Chengyong,Pang Hui,et al.A novel DC voltage control of MMC-HVDC power transmission system based on discrete mathematical model of MMC[J].Power System Technology,2013,37(9):2403-2409(in Chinese).
• [9]刘钟淇,宋强,刘文华.基于模块化多电平变流器的轻型直流输电系统[J].电力系统自动化,2010,34(2):53-58.Liu Zhongqi,Song Qiang,Liu Wenhua.VSC-HVDC system based oil modular multilevel converters[J].Automation of Electric Power Systems,2010,34(2):53-58(in Chinese).
• [10]孙一莹,赵成勇,赵静,等.基于两相静止坐标系的MMC-HVDC系统稳态控制策略[J].电网技术,2013,37(5):1384-1388.Sun Yiying,Zhao Chengyong,Zhao Jing,et al.A steady-state control strategy of MMC-HVDC transmission system based on two-phase stationary reference frame[J].Power System Technology,2013,37(5):1384-1388(in Chinese).
• [11]张建坡,赵成勇,敬华兵.比例谐振控制器在MMC-HVDC控制中的仿真研究[J].中国电机工程学报,2013,33(21):53-62.Zhang Jianpo,Zhao Chengyong,Jing Huabing.Simulating research of proportional resonant controllers in MMC-HVDC[J].Proceedings of the CSEE,2013,33(21):53-62(in Chinese).
• [12]管敏渊,徐政.模块化多电平换流器型直流输电的建模与控制[J].电力系统自动化,2010,34(19):64-68.Guan Minyuan,Xu Zheng.Modeling and control of modular multilevel converters in HVDC transmission[J].Automation of Electric Power Systems,2010,34(19):64-68(in Chinese).
• [13]朱代祥,丁明.基于内模控制的VSC-HVDC系统仿真研究[J].合肥工业大学学报,2010,33(5):652-656.Zhu Daixiang,Ding Ming.Simulation research on VSC-HVDC system based on internal model control[J].Journal of Hefei University of Technology,2010,33(5):652-656(in Chinese).
• [14]张兴,季建强,张崇巍,等.基于内模控制的三相电压型PWM整流器不平衡控制策略研究[J].中国电机工程学报,2005,25(13):51-56.Zhang Xing,Ji Jianqiang,Zhang Chongwei,et al.Study of internal model control based three phase PWM rectifier under unbalanced input voltage condition[J].Proceedings of the CSEE,2005,25(13):51-56(in Chinese).
• [15]邓富金,蔡旭.基于内模控制的双闭环PWM整流器[J].电力电子技术,2008,42(6):60-62.Deng Fujin,Cai Xu.Double closed-loop PWM rectifier based on internal model control[J].Power Electronics,2008,42(6):60-62(in Chinese).
• [16]张崇巍,张兴.PWM整流器及其控制[M].北京:机械工业出版社,2005:88-105.