H桥级联型整流器电容电压平衡控制策略
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摘要
针对H桥级联型整流器(cascaded H-bridge rectifier,CHBR)的电容电压平衡问题,在建立CHBR数学模型的基础上,研究了一种基于PI控制的直流侧电容电压平衡控制策略,采用载波移相调制策略(carrier phase-shifted SPWM,CPS-SPWM),理论推导出调制比与有功功率之间的关系,得出该电容电压平衡控制的均压范围。搭建了三模块CHBR的仿真模型和试验样机,试验结果验证了该算法具有较好的均压能力。
Cascaded H-bridge rectifier( CHBR) are usually used in the high-voltage situations such as APF( Active Power Filter) and PET( Power Electronic Transformer). Further,the capacitor voltage balancing is an important issue of this topology. Based on the mathematical model of CHBR,a novel PI-based capacitor voltage balancing method is proposed with the carrier phase-shifted SPWM technique. The relationship between the modulation index and the active power of cells is deduced by the mathematical analysis,and the voltage range of proposed capacitor voltage balance control is derived. A three-module CHBR simulation model,as well as an experimental prototype,is built. Experimental results indicate that the presented method has good performance on the capacitor voltage balance.
Cascaded H-bridge rectifier( CHBR) are usually used in the high-voltage situations such as APF( Active Power Filter) and PET( Power Electronic Transformer). Further,the capacitor voltage balancing is an important issue of this topology. Based on the mathematical model of CHBR,a novel PI-based capacitor voltage balancing method is proposed with the carrier phase-shifted SPWM technique. The relationship between the modulation index and the active power of cells is deduced by the mathematical analysis,and the voltage range of proposed capacitor voltage balance control is derived. A three-module CHBR simulation model,as well as an experimental prototype,is built. Experimental results indicate that the presented method has good performance on the capacitor voltage balance.
引文
[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 Qionglin,et al.A review of modular multilevel converters[J].Proceedings of the CSEE,2013,33(6):1-15.(in Chinese))
[2]王立乔,齐飞.级联型多电平变流器新型载波相移SPWM研究[J].中国电机工程学报,2010,30(3):28-34.(WANG Liqiao,QI Fei.Novel carrier phase-shifted SPWM for cascade multilevel converter[J].Proceedings of the CSEE,2010,30(3):28-34.(in Chinese))
[3]李建林,张仲超,许洪华.基于级联H桥五电平变流器SAPF的应用研究[J].电工技术学报,2006,21(2):79-82.(LI Jianlin,ZHANG Zhongchao,XU Honghua.Research on SAPF based on cascade H bridge five-level converter[J].Transactions of China Electrotechnical Society,2006,21(2):79-82.(in Chinese))
[4]徐榕,于泳,杨荣峰,等.H桥级联STATCOM直流侧电容电压平衡控制方法[J].电力自动化设备,2015,35(5):15-22.(XU Rong,YU Yong,YANG Rongfeng,et al.DC capacitor voltage balance control of H-bridge cascaded STATCOM[J].Electric Power Automation Equipment,2015,35(5):15-22.(in Chinese))
[5]季振东,孙毅超,李东野,等.星形和三角形连接的链式H桥STATCOM不平衡补偿分析[J].高电压技术,2015,41(7):2435-2444.(JI Zhendong,SUN Yichao,LI Dongye,et al.Comparative analysis for unbalance compensation of cascaded Hbridge STATCOMs between star and delta configuration[J].High Voltage Engineering,2015,41(7):2435-2444.(in Chinese))
[6]ALINAGHI M,HOSSEIN I.Optimal selective harmonic elimination for cascaded H-bridge-based multilevel rectifiers[J].IET Power Electron,2014,7:350-356.
[7]罗雨,饶宏,许树楷.级联多电平换流器的高效仿真模型[J].中国电机工程学报,2014,34(15):2346-2352.(LUO Yu,RAO Hong,XU Shukai.Efficient modeling for cascading multilevel converters[J].Proceedings of the CSEE,2014,34(15):2346-2352.(in Chinese))
[8]薛畅,申科,纪延超,等.模块化多电平换流器的电容电压平衡方法[J].电力自动化设备,2014,34(7):27-31.(XUE Chang,SHEN Ke,JI Yanchao,et al.Capacitor voltage balancing of modular multilevel converter[J].Electric Power Automation Equipment,2014,34(7):27-31.(in Chinese))
[9]刘秋降,吴命利,吴丽然.级联H桥变流器电容电压均衡约束条件[J].电力系统自动化,2016,40(15):113-119.(LIU Qiujiang,WU Mingli,WU Liran.Constraints for balancing capacitor voltage of cascaded H-bridge converters[J].Automation of Electric Power Systems,2016,40(15):113-119.(in Chinese))
[10]王顺亮,宋文胜,冯晓云.基于电压补偿分量注入的单相级联H桥整流器载波调制与电容电压平衡方法[J].中国电机工程学报,2015,35(12):3117-3123.(WANG Shunliang,SONG Wensheng,FENG Xiaoyun.Carrierbased modulation and capacitor voltage balance control method with voltage offset injection of single phase cascaded H-bridge rectifiers[J].Proceedings of the CSEE,2015,35(12):3117-3123.(in Chinese)).
[11]SEPAHVAN H,LIAO J,FERDOWSI M,et al.Capacitor voltage regulation in single-dc-Source cascaded H-bridge multilevel converters using phase-shift modulation[J].IEEE Transaction on Industrial Electronics,2013,60(9):3619-3626.
[12]HE Xiaoqiong,LIN Xiaolan,PENG Xu,et al.Control strategy of single-phase three level neutral point clamped cascaded rectifier[J].Energies,2017,10(5):592-608.
[13]DELL’AQUIL A,LISERRE M,MONOPOLI V G,et al.Overview of PI-based solutions for the control of dc buses of a single-phase h-bridge multilevel active rectifier[J].IEEE Transaction Industrial Applications,2008,44(3):857-866.
[14]VAZQUES S,LEON J,CARRASCO JM,et al.Analysis of the power balance in the cells of a multilevel cascaded H-bridge converter[J].IEEE Trans.Ind.Electron,2010,57(7):2287-2296.
[15]ZHAO Tiefu,WANG Gangyao,BHATTACHARYA S,et al.Voltage and power balance control for cascaded H-bridge converter-based solid-state transformer[J].IEEE Transaction on Power Electronics,2012,28(4):1523-1532.
[16]李建林,赵栋利,赵斌,等.载波相移SPWM级联H型变流器及其在有源电力滤波器中的应用[J].中国电机工程学报,2006,26(10):109-113.(LI Jianlin,ZHAO Dongli,ZHAO Bin,et al.Cascade H-bridge converter with carrier phase shifted SPWM technique and its application in active power filter[J].Proceedings of the CSEE,2006,26(10):109-113.(in Chinese))
[17]PENG Xu,HE Xiaoqiong,HAN Pengcheng,et al.Opposite vector based phase shift carrier space vector pulse width modulation for extending the voltage balance region in single-phase 3LNPC cascaded rectifier[J].IEEE Transaction Power Electronics,2017,32(9):7381-7393.
[2]王立乔,齐飞.级联型多电平变流器新型载波相移SPWM研究[J].中国电机工程学报,2010,30(3):28-34.(WANG Liqiao,QI Fei.Novel carrier phase-shifted SPWM for cascade multilevel converter[J].Proceedings of the CSEE,2010,30(3):28-34.(in Chinese))
[3]李建林,张仲超,许洪华.基于级联H桥五电平变流器SAPF的应用研究[J].电工技术学报,2006,21(2):79-82.(LI Jianlin,ZHANG Zhongchao,XU Honghua.Research on SAPF based on cascade H bridge five-level converter[J].Transactions of China Electrotechnical Society,2006,21(2):79-82.(in Chinese))
[4]徐榕,于泳,杨荣峰,等.H桥级联STATCOM直流侧电容电压平衡控制方法[J].电力自动化设备,2015,35(5):15-22.(XU Rong,YU Yong,YANG Rongfeng,et al.DC capacitor voltage balance control of H-bridge cascaded STATCOM[J].Electric Power Automation Equipment,2015,35(5):15-22.(in Chinese))
[5]季振东,孙毅超,李东野,等.星形和三角形连接的链式H桥STATCOM不平衡补偿分析[J].高电压技术,2015,41(7):2435-2444.(JI Zhendong,SUN Yichao,LI Dongye,et al.Comparative analysis for unbalance compensation of cascaded Hbridge STATCOMs between star and delta configuration[J].High Voltage Engineering,2015,41(7):2435-2444.(in Chinese))
[6]ALINAGHI M,HOSSEIN I.Optimal selective harmonic elimination for cascaded H-bridge-based multilevel rectifiers[J].IET Power Electron,2014,7:350-356.
[7]罗雨,饶宏,许树楷.级联多电平换流器的高效仿真模型[J].中国电机工程学报,2014,34(15):2346-2352.(LUO Yu,RAO Hong,XU Shukai.Efficient modeling for cascading multilevel converters[J].Proceedings of the CSEE,2014,34(15):2346-2352.(in Chinese))
[8]薛畅,申科,纪延超,等.模块化多电平换流器的电容电压平衡方法[J].电力自动化设备,2014,34(7):27-31.(XUE Chang,SHEN Ke,JI Yanchao,et al.Capacitor voltage balancing of modular multilevel converter[J].Electric Power Automation Equipment,2014,34(7):27-31.(in Chinese))
[9]刘秋降,吴命利,吴丽然.级联H桥变流器电容电压均衡约束条件[J].电力系统自动化,2016,40(15):113-119.(LIU Qiujiang,WU Mingli,WU Liran.Constraints for balancing capacitor voltage of cascaded H-bridge converters[J].Automation of Electric Power Systems,2016,40(15):113-119.(in Chinese))
[10]王顺亮,宋文胜,冯晓云.基于电压补偿分量注入的单相级联H桥整流器载波调制与电容电压平衡方法[J].中国电机工程学报,2015,35(12):3117-3123.(WANG Shunliang,SONG Wensheng,FENG Xiaoyun.Carrierbased modulation and capacitor voltage balance control method with voltage offset injection of single phase cascaded H-bridge rectifiers[J].Proceedings of the CSEE,2015,35(12):3117-3123.(in Chinese)).
[11]SEPAHVAN H,LIAO J,FERDOWSI M,et al.Capacitor voltage regulation in single-dc-Source cascaded H-bridge multilevel converters using phase-shift modulation[J].IEEE Transaction on Industrial Electronics,2013,60(9):3619-3626.
[12]HE Xiaoqiong,LIN Xiaolan,PENG Xu,et al.Control strategy of single-phase three level neutral point clamped cascaded rectifier[J].Energies,2017,10(5):592-608.
[13]DELL’AQUIL A,LISERRE M,MONOPOLI V G,et al.Overview of PI-based solutions for the control of dc buses of a single-phase h-bridge multilevel active rectifier[J].IEEE Transaction Industrial Applications,2008,44(3):857-866.
[14]VAZQUES S,LEON J,CARRASCO JM,et al.Analysis of the power balance in the cells of a multilevel cascaded H-bridge converter[J].IEEE Trans.Ind.Electron,2010,57(7):2287-2296.
[15]ZHAO Tiefu,WANG Gangyao,BHATTACHARYA S,et al.Voltage and power balance control for cascaded H-bridge converter-based solid-state transformer[J].IEEE Transaction on Power Electronics,2012,28(4):1523-1532.
[16]李建林,赵栋利,赵斌,等.载波相移SPWM级联H型变流器及其在有源电力滤波器中的应用[J].中国电机工程学报,2006,26(10):109-113.(LI Jianlin,ZHAO Dongli,ZHAO Bin,et al.Cascade H-bridge converter with carrier phase shifted SPWM technique and its application in active power filter[J].Proceedings of the CSEE,2006,26(10):109-113.(in Chinese))
[17]PENG Xu,HE Xiaoqiong,HAN Pengcheng,et al.Opposite vector based phase shift carrier space vector pulse width modulation for extending the voltage balance region in single-phase 3LNPC cascaded rectifier[J].IEEE Transaction Power Electronics,2017,32(9):7381-7393.