MMC-HVDC系统子模块电容与桥臂电感的选取和计算
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摘要
为了研究模块化多电平换流器中子模块电容和桥臂电感的选取和计算方法,从正常运行时稳态能量交换过程、MMC功率输出范围、抑制相间环流、避免系统谐振以及故障工况下交流系统三相不平衡条件和直流双极故障六个方面分析了模块化多电平换流器中子模块电容和桥臂电感的约束条件及两者间的制约关系,根据分析给出了子模块电容和桥臂电感的参数取值原则和计算方法.利用Matlab/Simulink搭建了上海南汇柔性直流输电示范工程的仿真模型,验证了参数取值方法的合理性.
To research the restriction and Restrictive relationship between the sub-module capacitance and inductance of bridge arm of modulad multi-level conventer,inclouded six aspects,which is the steady-state energy exchange process,power output range,inhibiting circulating current of phase and avoid system resonant in normal operation as well as three-phase unbalance of AC system and bipolar short-circuit fault in fault conditions.Based on the analysis,the principle and calculation method for the selection of the sub-module capacitance and inductance of bridge arm are given.Using Matlab/Simulink to build the simulation model of Shanghai Nanhui Flexible HVDC Power Transmission demonstration project to verify the reasonableness of the method parameter values.
To research the restriction and Restrictive relationship between the sub-module capacitance and inductance of bridge arm of modulad multi-level conventer,inclouded six aspects,which is the steady-state energy exchange process,power output range,inhibiting circulating current of phase and avoid system resonant in normal operation as well as three-phase unbalance of AC system and bipolar short-circuit fault in fault conditions.Based on the analysis,the principle and calculation method for the selection of the sub-module capacitance and inductance of bridge arm are given.Using Matlab/Simulink to build the simulation model of Shanghai Nanhui Flexible HVDC Power Transmission demonstration project to verify the reasonableness of the method parameter values.
引文
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[13]王姗姗,周孝信,汤广福,等.模块化多电平HVDC输电系统子模块电容值的选取和计算[J].电网技术,2011,35(1):26-32.
[14]赵成勇,胡静,翟晓萌,等.模块化多电平换流器桥臂电抗器参数设计方法[J].电力系统自动化,2013,37(15):89-94.
[15]谢妍,陈柏超,陈耀军,等.新型模块化多电平换流器串联电抗器的功能与取值分析[J].电力自动化设备,2012,32(9):55-59.
[16]刘普,王跃,雷万钧,等.模块化多电平变流器桥臂电感参数设计[J].电网技术,2015,39(6):1665-1671.
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[18]马成廉,潘文明,姚天亮,等.VSC-HVDC在交流电网非故障时的控制策略研究[J].东北电力大学学报,2015,35(6):26-32.
[2]Q.Tu,Z.Xu,H.Huang,et al.Parameter de sign principle of the arm inductor in modular multilevel converter based HVDC[C]//International Conference on Power System Technology.2010:1-6.
[3]李亚男,蒋维勇,余世峰,等.舟山多端柔性直流输电工程系统设计[J].高电压技术,2014,40(8):2490-2496.
[4]A.Hillers,J.Biela.Optimal design of the modular multilevel converter for an energy storage system based on split batteries[C]//European Conference on Power Electronics and Applications.IEEE,2013:1-11.
[5]S.Allebrod,R.Hamerski,R.Marquardt.New transformerless,scalable Modular Multilevel Converters for HVDC-transmission[C]//Power Electronics Specialists Conference,2008.Pesc.IEEE,2008:174-179.
[6]IEEE Std C37.118-2005 IEEE standard for synchrophasors for power systems[S].New York,NY,USA:The Institute of Electrical and Electronics Engineers,2006.
[7]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,2009.
[8]李国庆,娄剑,边竞,等.考虑直流断路器的MMC-HVDC系统直流电压保护误动分析[J].东北电力大学学报,2018,38(2):1-8.
[9]H.Nademi,A.Das,L.Norum.An analytical frequency-domain modeling of a Modular Multilevel Converter[C]//Power Electronics and Drive Systems Technology.IEEE,2012:86-91.
[10]殷自力,李庚银,李广凯,等.柔性直流输电系统运行机理分析及主回路相关参数设计[J].电网技术,2007,31(21):16-21.
[11]丁冠军,丁明,汤广福,等.新型多电平VSC子模块电容参数与均压策略[J].中国电机工程学报,2009,29(30):1-6.
[12]刘普,王跃,雷万钧.抑制模块化多电平变流器谐振模块电容参数设计方法[J].中国电机工程学报,2015,35(7):1713-1722.
[13]王姗姗,周孝信,汤广福,等.模块化多电平HVDC输电系统子模块电容值的选取和计算[J].电网技术,2011,35(1):26-32.
[14]赵成勇,胡静,翟晓萌,等.模块化多电平换流器桥臂电抗器参数设计方法[J].电力系统自动化,2013,37(15):89-94.
[15]谢妍,陈柏超,陈耀军,等.新型模块化多电平换流器串联电抗器的功能与取值分析[J].电力自动化设备,2012,32(9):55-59.
[16]刘普,王跃,雷万钧,等.模块化多电平变流器桥臂电感参数设计[J].电网技术,2015,39(6):1665-1671.
[17]徐政.柔性直流输电系统[M].北京:机械工业出版社,2013.
[18]马成廉,潘文明,姚天亮,等.VSC-HVDC在交流电网非故障时的控制策略研究[J].东北电力大学学报,2015,35(6):26-32.