交流系统不对称时模块化多电平换流器的控制Control of Modular Multilevel Converter Under Imbalance of AC Power System
周月宾;江道灼;郭捷;梁一桥;胡鹏飞;林志勇;
摘要(Abstract):
在交流系统不对称的情况下,三相模块化多电平换流器(modular multilevel converter,MMC)内部会出现零序性质的2次谐波环流,该零序分量将进入MMC直流侧,加剧直流电压、电流和功率的2倍频波动。为抑制直流侧功率的2倍频波动,以瞬时功率理论和比例谐振调节器为基础,设计了两相静止坐标系下MMC的控制策略。该控制策略由交流回路控制和直流回路控制2部分构成,前者实现MMC与交流系统之间的功率调节;后者实现MMC内特性的调节,主要抑制MMC环流中的2次谐波成分,使桥臂电流波形接近正弦。仿真系统采用不控整流站,逆变站采用MMC,结果表明:在交流系统不对称的情况下,该控制策略有效抑制了环流中的2次谐波成分以及MMC直流侧电压、电流和功率的2倍频波动。
关键词(KeyWords): 直流输电;模块化多电平换流器;瞬时功率;交流回路;直流回路;比例谐振调节器;不对称
基金项目(Foundation): 国家863高技术基金项目(2008AA05Z213);; 浙江省重点科技创新团队项目(2010R50004)资助~~
作者(Author): 周月宾;江道灼;郭捷;梁一桥;胡鹏飞;林志勇;
Email:
DOI: 10.13335/j.1000-3673.pst.2013.03.022
参考文献(References):
- [1]Siemens.HVDC plus(VSC technology)[EB/OL].[2011-03-27].http://www.Energy.siemens.com/co/en/power-transmission/hvdc/hvdc-plus/.
- [2]张文亮,汤广福,查鲲鹏,等.先进电力电子技术在智能电网中的应用[J].中国电机工程学报,2010,30(4):1-7.Zhang Wenliang,Tang Guangfu,Zha Kunpeng,et al.Application ofadvanced power electronics in smart grid[J].Proceedings of theCSEE,2010,30(4):1-7(in Chinese).
- [3]Siemens.Stromrichterschaltungen mit verteilten energiespeichern[P].German Patent:DE20122923(U1),2010-02-25.
- [4]Harnefors L,Norrga S,Antonopoulos A,et al.Dynamic modelingof modular multilevel converters[C]//European Conference on PowerElectronics and Applications.Birmingham,United Kingdom:Instituteof Electrical and Electronics Engineers,2011:1-10.
- [5]Marcelo A,P′erez R J.Generalized modeling and simulation of amodular multilevel converter[C]//2011 IEEE InternationalSymposium on Industrial Electronics.Gdansk,Poland:Institute ofElectrical and Electronics Engineers,2011:5-14.
- [6]Ilves K,Antonopoulos A,Norrga S,et al.Steady-state analysis ofinteraction between harmonic components of arm and line quantitiesof modular multilevel converters[J].IEEE Transactions on PowerElectronics,2011,27(1):57-68.
- [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 ofmodular multi-level voltage source converter[J].Proceedings of theCSEE,2011,31(24):1-8(in Chinese).
- [8]Das A,Nademi H,Norum L.A pulse width modulation technique forreducing switching frequency for modular multilevel converter[C]//2010 India International Conference on Power Electronics(IICPE).Delhi,India:Institute of Electrical and ElectronicsEngineers,2011:1-6.
- [9]丁冠军,汤广福,丁明,等.新型多电平电压源换流器模块的拓扑机制与调制策略[J].中国电机工程学报,2009,29(36):1-8.Ding Guanjun,Tang Guangfu,Ding Ming,et al.Topology mechanismand modulation scheme of a new multilevel voltage source convertermodular[J].Proceedings of the CSEE,2009,29(36):1-8(in Chinese).
- [10]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 modulationfor modular multilevel converters in HVDC transmission[J].Automation of Electric Power Systems,2010,34(2):48-52(inChinese).
- [11]李强,贺之渊,汤广福,等.新型模块化多电平换流器空间矢量脉宽调制方法[J].电力系统自动化,2010,34(22):75-79.Li Qiang,He Zhiyuan,Tang Guangfu,et al.A space-vector PEMmethod for a new type of modular multilevel converter[J].Automation of Electric Power Systems,2010,34(22):75-79(inChinese).
- [12]Amankwah E K,Clare J C,Wheeler P W,et al.Multi carrier PWMof the modular multilevel VSC for medium voltage applications[C]//2012 Twenty-Seventh Annual IEEE Applied Power ElectronicsConference and Exposition(APEC).Orlando,USA:Institute ofElectrical and Electronics Engineers,2012:2398-2406.
- [13]Angquist L,Antonopoulos A,Siemaszko D,et al.Open-loop controlof modular multilevel converters using estimation of storedenergy[J].IEEE Transactions on Industry Applications,2011,47(6):2516-2524.
- [14]赵岩,胡学浩,汤广福,等.模块化多电平变流器HVDC输电系统控制策略[J].中国电机工程学报,2011,31(25):35-42.Zhao Yan,Hu Xuehao,Tang Guangfu,et al.Control strategy ofmodular multilevel converters based HVDC transmission[J].Proceedings of the CSEE,2011,31(25):35-42(in Chinese).
- [15]Hagiwara M,Akagi H.Control and experiment of pulsewidth-modulated modular multilevel converters[J].IEEE Transactions onPower Electronics,2009,24(7):1737-1746.
- [16]Munch P,Liu S,Ebner G.Multivariable current control of modularmultilevel converters with disturbance rejection and harmonicscompensation[C]//2010 IEEE International Conference on ControlApplications(CCA).Yokohama,Japan:Institute of Electrical andElectronics Engineers,2010:196-201.
- [17]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 modularmultilever converter in HVDC transmission[J].Automation ofElectric Power Systems,2010,34(19):64-68(in Chinese).
- [18]郭捷,江道灼,周月宾,等.交直流侧电流分别可控的模块化多电平换流器控制方法[J].电力系统自动化,2011,35(7):42-47.Guo Jie,Jiang Daozhuo,Zhou Yuebin,et al.AC and DC currenthybrid control strategy for modular multilevel converter[J].Automation of Electric Power Systems,2011,35(7):42-47(inChinese).
- [19]屠卿瑞,徐政,管敏渊,等.模块化多电平换流器环流抑制控制器设计[J].电力系统自动化,2010,34(18):57-61.Tu Qingrui,Xu Zheng,Guan Minyuan,et al.Design of circulatingcurrent suppressing controllers for modular multilever converter[J].Automation of Electric Power Systems,2010,34(18):57-61(inChinese).
- [20]刘钟淇,宋强,刘文华.采用MMC变流器的VSC-HVDC系统故障态研究[J].电力电子技术,2010,44(9):69-71.Liu Zhongqi,Song Qiang,Liu Wenhua.Research on the VSC-HVDCsystem using modular multilevel converters under fault condition[J].Power Electronics,2010,44(9):69-71(in Chinese).
- [21]Saeedifard M,Iravani R.Dynamic performance of a modularmultilevel back-to-back HVDC system[J].IEEE Transactions onPower Delivery,2010,25(4):2903-2912.
- [22]Soto-Sanchez D,Green T C.Control of a modular multilevelconverter-based HVDC transmission system[C]//Proceedings of the2011-14th European Conference on Power Electronics andApplications(EPE 2011).Birmingham,United Kingdom:Institute ofElectrical and Electronics Engineers,2011:1-10.
- [23]Hu J,He Y.Modeling and control of grid-connected voltage-sourcedconverters under generalized unbalanced operation conditions[J].IEEE Transactions on Energy Conversion,2008,23(3):903-913.
- [24]屠卿瑞,徐政,郑翔,等.模块化多电平换流器型直流输电内部环流机理分析[J].高电压技术,2010,36(2),547-552.Tu Qingrui,Xu Zheng,Zheng Xiang,et al.Mechanism analysis onthe ciuculating current in modular multilevel converter basedHVDC[J].High Voltage Engineering,2010,36(2),547-552(inChinese).
- [25]Akagi H,Kanazawa Y,Nabae A.Instantaneous reactive powercompensation comprising switching devices without energy storagecomponents[J].IEEE Transactions on Industry Applications,1984,20(3):625-630.