不平衡电网下三相四桥臂高频链矩阵整流器及其解结耦鞍型波脉宽调制方法
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摘要
为提高三相高频链矩阵整流器在不理想电网下的适用性,提出一种三相四桥臂高频链矩阵整流器拓扑,其在电压型三相三桥臂高频链矩阵整流器的基础上引入第四桥臂,旨在给输入不平衡的电流提供零序电流通路,进而提高其适用于不平衡电网的能力。为提高直流电压利用率,减小输入电流谐波,针对所提拓扑提出一种面向双向开关的数字实现式解结耦鞍型波脉宽调制(SAPWM)方法,其算法简便、灵活性强。为论证所提拓扑可分解为三个独立的单相高频链矩阵整流器,提出一种通过观测交流侧滤波电感两端电压波形来进行分析的新思路。最终实现了在电网电压一相跌落条件下仍能输出稳定的直流电压,输入电流谐波含量低且功率因数高。仿真和实验验证了所提拓扑及理论分析的可行性和有效性。
In order to improve the applicability of the three-phase high frequency link matrix rectifier under the unbalanced gird conditions, a three-phase four-leg high frequency link matrix rectifier topology is proposed. This topology introduces a fourth leg based on a voltage-type three-phase three-leg high frequency link matrix rectifier, which is designed to provide a zero-sequence current path for the input unbalanced current, thereby improving its ability to adapt to unbalanced grid conditions. In order to improve the utilization of DC voltage and reduce the input current harmonics, a digital implementation of a de-re-coupling saddle pulse width modulation(SAPWM) method for bidirectional switches is proposed, and the algorithm is simple and flexible. A new idea is proposed for analyzing the voltage waveforms at both ends of the filter inductor on the AC side, to demonstrate that the proposed topology can be decomposed into three independent single-phase high-frequency link matrix rectifiers. Finally, a stable DC voltage can still be output under the condition of one-phase drop of the grid voltage, the input current harmonic content is low and the power factor is high. Simulation and experiments verify the feasibility and effectiveness of the proposed topology and theoretical analysis.
In order to improve the applicability of the three-phase high frequency link matrix rectifier under the unbalanced gird conditions, a three-phase four-leg high frequency link matrix rectifier topology is proposed. This topology introduces a fourth leg based on a voltage-type three-phase three-leg high frequency link matrix rectifier, which is designed to provide a zero-sequence current path for the input unbalanced current, thereby improving its ability to adapt to unbalanced grid conditions. In order to improve the utilization of DC voltage and reduce the input current harmonics, a digital implementation of a de-re-coupling saddle pulse width modulation(SAPWM) method for bidirectional switches is proposed, and the algorithm is simple and flexible. A new idea is proposed for analyzing the voltage waveforms at both ends of the filter inductor on the AC side, to demonstrate that the proposed topology can be decomposed into three independent single-phase high-frequency link matrix rectifiers. Finally, a stable DC voltage can still be output under the condition of one-phase drop of the grid voltage, the input current harmonic content is low and the power factor is high. Simulation and experiments verify the feasibility and effectiveness of the proposed topology and theoretical analysis.
引文
[1]徐友,郑建勇,梅军,等.基于单周控制的三相PWM整流器负序电压补偿型不平衡控制策略[J].电工技术学报,2012,27(11):183-190.Xu You,Zheng Jianyong,Mei Jun,et al.Negative sequence voltage feed forward compensation unbalanced control strategy for three-phase PWMrectifier based on one cycle control[J].Transactions of China Electrotechnical Society,2012,27(11):183-190.
[2]Lei Jiaxing,Zhou Bo,Bian Jinliang,et al.A simple method for sinusoidal input currents of matrix converter under unbalanced input voltages[J].IEEETransactions on Power Electronics,2015,31(1):21-25.
[3]王久和,慕小斌.电网不平衡时电压型PWM整流器混合无源控制[J].电工技术学报,2015,30(8):159-166.Wang Jiuhe,Mu Xiaobin.Hybird passivity based control of voltage source PWM rectifiers under unbalanced voltage conditions[J].Transactions of China Electrotechnical Society,2015,30(8):159-166.
[4]Zhang Yongchang,Qu Changqi.Direct power control of a pulse width modulation rectifier using space vector modulation under unbalanced grid voltages[J].IEEE Transactions on Power Electronics,2015,30(10):5892-5901.
[5]Zhang Yongchang,Qu Changqi.Model predictive direct power control of PWM rectifiers under unbalanced network conditions[J].IEEE Transactions on Industrial Electronics,2015,62(7):4011-4022.
[6]Martinez-Rodriguez P R,Escobar G,ValdezFernandez A A,et al.Direct power control of a three-phase rectifier based on positive sequence detection[J].IEEE Transactions on Industrial Electronics,2014,61(8):4084-4092.
[7]韦徵,陈新,陈杰,等.三相四桥臂PWM整流器的研究[J].电工技术学报,2014,29(8):128-135.Wei Zheng,Chen Xin,Chen Jie,et al.Research of three-phase four legs rectifier[J].Transactions of China Electrotechnical Society,2014,29(8):128-135.
[8]韦徵,陈新,陈杰,等.三相PFC整流器改进单周期控制策略[J].电工技术学报,2014,29(6):196-203.Wei Zheng,Chen Xin,Chen Jie,et al.Research of improved one-cycle control strategy of three-phase PFC rectifier[J].Transactions of China Electrotechnical Society,2014,29(6):196-203.
[9]于波,杨延春,郭晓丹,等.三相四桥臂整流器系统建模及控制环路优化设计[J].中国设备工程,2017(18):111-113.Yu Bo,Yang Yanchun,Guo Xiaodan,et al.Three-phase four-leg rectifier system modeling and control loop optimization design[J].China Plant Engineering,2017(18):111-113.
[10]Garcia C F,Rivera M E,Rodríguez J R,et al.Predictive current control with instantaneous reactive power minimization for a four-leg indirect matrix converter[J].IEEE Transactions on Industrial Electronics,2017,64(2):922-929.
[11]陈瑶,金新民,童亦斌.三相四线系统中SPWM与SVPWM的归一化研究[J].电工技术学报,2007,22(12):122-127.Chen Yao,Jin Xinmin,Tong Yibin.Study of the unification of SPWM and SVPWM in three-phase four-wire systems[J].Transactions of China Electrotechnical Society,2007,22(12):122-127.
[12]杨兴华,杨喜军,张哲民,等.矩阵整流器单周期控制策略的研究[J].电工技术学报,2012,27(2):38-44.Yang Xinghua,Yang Xijun,Zhang Zhemin,et al.Research on one-cycle control strategy of matrix rectifier[J].Transactions of China Electrotechnical Society,2012,27(2):38-44.
[13]Yan Zhaoyang,Zhang Kun,Li Jianxia,et al.A novel absolute value logic SPWM control strategy based on de-re-coupling idea for high frequency link matrix rectifier[J].IEEE Transactions on Industrial Informatics,2013,9(2):1188-1198.
[14]Yan Zhaoyang,Jia Minli,Zhang Chunjiang,et al.An integration SPWM strategy for high-frequency link matrix converter with adaptive commutation in one step based on de-re-coupling idea[J].IEEE Transactions on Industrial Electronics,2011,59(1):116-128.
[15]闫朝阳,吴晓雨,李建霞,等.电压型矩阵整流器解结耦矢量调制原理研究[J].太阳能学报,2017,38(12):3291-3301.Yan Zhaoyang,Wu Xiaoyu,Li Jianxia,et al Research on voltage source matrix rectifier dere-coupling SVM modulation[J].Acta Energiae Solaris Sinica,2017,38(12):3291-3301.
[16]闫朝阳,贾民立,张纯江,等.三相高频链矩阵式逆变器的HPWM调制策略原理与实现[J].电工技术学报,2010,25(11):113-121.Yan Zhaoyang,Jia Minli,Zhang Chunjiang,et al Principle and realization of HPWM strategy for three-phase inverter based on high frenquency linked matrix converter[J].Transactions of China Electrotechnical Society,2010,25(11):113-121.
[17]闫朝阳,张喆,李建霞,等.单相高频链逆变器的解结耦单极性移相调制及其死区优化[J].电工技术学报,2018,33(6):1338-1346.Yan Zhaoyang,Zhang Zhe,Li Jianxia,et al.The uni-polarity phase-shifted modulation strategy for single-phase high-frequency link inverter based on de-re-coupling idea and dead time optimization[J]Transactions of China Electrotechnical Society,2018,33(6):1338-1346.
[18]张巍,周元钧.SAPWM整流技术在航空电力作动器上的应用[J].电力电子,2008(6):35-38.Zhang Wei,Zhou Yuanjun.Application of SAPWMrectification technology in aeroelectric actuators[J].Power Electronics,2008(6):35-38.
[19]陈国呈.新型电力电子变换技术[M].北京:中国电力出版社,2004.
[20]韦徵,陈凯,陈轶涵,等.一种新颖的三相四桥臂逆变器SAPWM控制实现方法[J].电工技术学报,2013,28(7):199-204.Wei Zheng,Chen Kai,Chen Yihan,et al.A novle method for SAPWM control of three-phase four-leg inverter[J].Transactions of China Electrotechnical Society,2013,28(7):199-204.
[21]张兴,张崇巍.PWM整流器及其控制[M].北京:机械工业出版社,2012.
[22]翁利民.电力电子技术与谐波抑制、无功功率补偿技术研究综述[J].电力电容器与无功补偿,2004(3):6-10.Weng Limin.Review of researches on power electronics and harmonics restraining,var power compensation technique[J].Power Capacitors,2004(3):6-10.
[23]杨玉岗,冯本成,王长华,等.一种新型的平面无源集成EMI滤波器结构[J].电工技术学报,2012,27(8):108-113.Yang Yugang,Feng Bencheng,Wang Changhua,et al.A novel structure of planar passive integrated EMIfilter[J].Transactions of China Electrotechnical Society,2012,27(8):108-113.
[2]Lei Jiaxing,Zhou Bo,Bian Jinliang,et al.A simple method for sinusoidal input currents of matrix converter under unbalanced input voltages[J].IEEETransactions on Power Electronics,2015,31(1):21-25.
[3]王久和,慕小斌.电网不平衡时电压型PWM整流器混合无源控制[J].电工技术学报,2015,30(8):159-166.Wang Jiuhe,Mu Xiaobin.Hybird passivity based control of voltage source PWM rectifiers under unbalanced voltage conditions[J].Transactions of China Electrotechnical Society,2015,30(8):159-166.
[4]Zhang Yongchang,Qu Changqi.Direct power control of a pulse width modulation rectifier using space vector modulation under unbalanced grid voltages[J].IEEE Transactions on Power Electronics,2015,30(10):5892-5901.
[5]Zhang Yongchang,Qu Changqi.Model predictive direct power control of PWM rectifiers under unbalanced network conditions[J].IEEE Transactions on Industrial Electronics,2015,62(7):4011-4022.
[6]Martinez-Rodriguez P R,Escobar G,ValdezFernandez A A,et al.Direct power control of a three-phase rectifier based on positive sequence detection[J].IEEE Transactions on Industrial Electronics,2014,61(8):4084-4092.
[7]韦徵,陈新,陈杰,等.三相四桥臂PWM整流器的研究[J].电工技术学报,2014,29(8):128-135.Wei Zheng,Chen Xin,Chen Jie,et al.Research of three-phase four legs rectifier[J].Transactions of China Electrotechnical Society,2014,29(8):128-135.
[8]韦徵,陈新,陈杰,等.三相PFC整流器改进单周期控制策略[J].电工技术学报,2014,29(6):196-203.Wei Zheng,Chen Xin,Chen Jie,et al.Research of improved one-cycle control strategy of three-phase PFC rectifier[J].Transactions of China Electrotechnical Society,2014,29(6):196-203.
[9]于波,杨延春,郭晓丹,等.三相四桥臂整流器系统建模及控制环路优化设计[J].中国设备工程,2017(18):111-113.Yu Bo,Yang Yanchun,Guo Xiaodan,et al.Three-phase four-leg rectifier system modeling and control loop optimization design[J].China Plant Engineering,2017(18):111-113.
[10]Garcia C F,Rivera M E,Rodríguez J R,et al.Predictive current control with instantaneous reactive power minimization for a four-leg indirect matrix converter[J].IEEE Transactions on Industrial Electronics,2017,64(2):922-929.
[11]陈瑶,金新民,童亦斌.三相四线系统中SPWM与SVPWM的归一化研究[J].电工技术学报,2007,22(12):122-127.Chen Yao,Jin Xinmin,Tong Yibin.Study of the unification of SPWM and SVPWM in three-phase four-wire systems[J].Transactions of China Electrotechnical Society,2007,22(12):122-127.
[12]杨兴华,杨喜军,张哲民,等.矩阵整流器单周期控制策略的研究[J].电工技术学报,2012,27(2):38-44.Yang Xinghua,Yang Xijun,Zhang Zhemin,et al.Research on one-cycle control strategy of matrix rectifier[J].Transactions of China Electrotechnical Society,2012,27(2):38-44.
[13]Yan Zhaoyang,Zhang Kun,Li Jianxia,et al.A novel absolute value logic SPWM control strategy based on de-re-coupling idea for high frequency link matrix rectifier[J].IEEE Transactions on Industrial Informatics,2013,9(2):1188-1198.
[14]Yan Zhaoyang,Jia Minli,Zhang Chunjiang,et al.An integration SPWM strategy for high-frequency link matrix converter with adaptive commutation in one step based on de-re-coupling idea[J].IEEE Transactions on Industrial Electronics,2011,59(1):116-128.
[15]闫朝阳,吴晓雨,李建霞,等.电压型矩阵整流器解结耦矢量调制原理研究[J].太阳能学报,2017,38(12):3291-3301.Yan Zhaoyang,Wu Xiaoyu,Li Jianxia,et al Research on voltage source matrix rectifier dere-coupling SVM modulation[J].Acta Energiae Solaris Sinica,2017,38(12):3291-3301.
[16]闫朝阳,贾民立,张纯江,等.三相高频链矩阵式逆变器的HPWM调制策略原理与实现[J].电工技术学报,2010,25(11):113-121.Yan Zhaoyang,Jia Minli,Zhang Chunjiang,et al Principle and realization of HPWM strategy for three-phase inverter based on high frenquency linked matrix converter[J].Transactions of China Electrotechnical Society,2010,25(11):113-121.
[17]闫朝阳,张喆,李建霞,等.单相高频链逆变器的解结耦单极性移相调制及其死区优化[J].电工技术学报,2018,33(6):1338-1346.Yan Zhaoyang,Zhang Zhe,Li Jianxia,et al.The uni-polarity phase-shifted modulation strategy for single-phase high-frequency link inverter based on de-re-coupling idea and dead time optimization[J]Transactions of China Electrotechnical Society,2018,33(6):1338-1346.
[18]张巍,周元钧.SAPWM整流技术在航空电力作动器上的应用[J].电力电子,2008(6):35-38.Zhang Wei,Zhou Yuanjun.Application of SAPWMrectification technology in aeroelectric actuators[J].Power Electronics,2008(6):35-38.
[19]陈国呈.新型电力电子变换技术[M].北京:中国电力出版社,2004.
[20]韦徵,陈凯,陈轶涵,等.一种新颖的三相四桥臂逆变器SAPWM控制实现方法[J].电工技术学报,2013,28(7):199-204.Wei Zheng,Chen Kai,Chen Yihan,et al.A novle method for SAPWM control of three-phase four-leg inverter[J].Transactions of China Electrotechnical Society,2013,28(7):199-204.
[21]张兴,张崇巍.PWM整流器及其控制[M].北京:机械工业出版社,2012.
[22]翁利民.电力电子技术与谐波抑制、无功功率补偿技术研究综述[J].电力电容器与无功补偿,2004(3):6-10.Weng Limin.Review of researches on power electronics and harmonics restraining,var power compensation technique[J].Power Capacitors,2004(3):6-10.
[23]杨玉岗,冯本成,王长华,等.一种新型的平面无源集成EMI滤波器结构[J].电工技术学报,2012,27(8):108-113.Yang Yugang,Feng Bencheng,Wang Changhua,et al.A novel structure of planar passive integrated EMIfilter[J].Transactions of China Electrotechnical Society,2012,27(8):108-113.