采用并联通用内模的三相APF重复控制策略
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摘要
为了在高精度电流跟踪的前提下,提高三相并联型有源电力滤波器电流跟踪控制的适应性和动态性能,提出了一种基于并联通用内模的复合重复控制策略。并联通用内模能依据指令电流谐波成份的变化调节内模参数,改变内模的补偿范围,而且能将延迟时间缩短至同等补偿范围内模的一半,显著提高了重复控制器应对负载或谐波源变动的能力和动态性能。设计了基于并联通用内模的重复控制器,并采用插入式结构将其与比例控制组成了复合重复控制系统。详细分析了复合控制系统的稳定性、稳态误差和收敛性。将提出的复合重复控制策略应用到三相四线制电网并联APF系统中,并与其他控制策略进行了比较。仿真和实验结果证明了基于并联通用内模的复合重复控制策略的有效性和优越性。
To improve the adaptability and dynamic performance of current control for three-phase shunt APF under the accurate current tracking,a repetitive control strategy based on shunt generic internal model was proposed. The shunt generic internal model can adjust compensation range according to changes in harmonics of current reference and can shorten half of delay time of internal models which have the same compensation range. It significantly improves the dynamic performance and abilities which deal with different harmonic sources and changing load of repetitive controller. A novel composite system formed by repetitive controller based on proposed internal model and proportional controller in plug-in mode was proposed. Its stability,steady-state error and convergence were analyzed in detail. The comparison of proposed control strategy with others was made in shunt APF of three-phase four-wire system. Simulation and experimental results are shown to confirm the validity and superiority of the proposed repetitive control strategy.
To improve the adaptability and dynamic performance of current control for three-phase shunt APF under the accurate current tracking,a repetitive control strategy based on shunt generic internal model was proposed. The shunt generic internal model can adjust compensation range according to changes in harmonics of current reference and can shorten half of delay time of internal models which have the same compensation range. It significantly improves the dynamic performance and abilities which deal with different harmonic sources and changing load of repetitive controller. A novel composite system formed by repetitive controller based on proposed internal model and proportional controller in plug-in mode was proposed. Its stability,steady-state error and convergence were analyzed in detail. The comparison of proposed control strategy with others was made in shunt APF of three-phase four-wire system. Simulation and experimental results are shown to confirm the validity and superiority of the proposed repetitive control strategy.
引文
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[17]ZHOU K,WANG D,ZHANG B,et al.Plug-in dual-mode-structure repetitive controller for CVCF PWM inverters[J].IEEE Transactions on Industrial Electronics,2009,56(3):784.
[18]JIANG S,CAO D,LI Y,et al.Low-THD,fast-transient,and costeffective synchronous-frame repetitive controller for three-phase UPS inverters[J].IEEE Transaction on Power Electronics.2012,27(6):2994.
[19]MATTAVELLI P,MARAFAO F P.Repetitive-based control for selective harmonic compensation in active power filters[J].IEEE Transactions on Industrial Electronics,2004,51(5):1018.
[20]LU W Z,ZHOU K L,WANG D W,et al.A generic digital nk±m-order harmonic repetitive control scheme for PWM converters[J].IEEE Transactions on Industrial Electronics,2014,61(3):1516.
[21]孙驰,魏光辉,毕增军.基于同步坐标变换的三相不对称系统的无功与谐波电流的检测[J].中国电机工程学报,2003,23(12):43.SUN Chi,WEI Guanghui,BI Zenjun.Detection for reactive and harmonics currents of unbalanced three-phase systems based on synchronous reference frame transformation[J].Proceedings of the CSEE,2003,23(12):43.
[2]程启明,胡晓青,程尹曼,等.基于不定频滞环空间电压矢量的有源滤波器电流控制策略研究[J].电机与控制学报,2014,18(1):77.CHENG Qiming,HU Xiaoqing,CHENG Yiman,et al.Current control strategy of active power filter based on the indefinite frequency hysteresis space voltage vector[J].Electric Machines and Control,2014,18(1):77.
[3]易皓,卓放,翟灏.基于矢量谐振调节器的有源电力滤波器网侧电流检测控制方法研究[J].电工技术学报,2015,30(7):72.YI Hao,ZHUO Fang,ZHAI Hao.Research on source current detection type APF control scheme based on vector resonant regulator[J].Transactions of China Electrotechnical Society,2015,30(7):72.
[4]郭伟峰,武健,徐殿国,等.新型滑模控制的并联混合有源电力滤波器[J].中国电机工程学报,2009,29(27):29.GUO Weifeng,WU Jian,XU Dianguo,et al.Hybrid shunt active power filter based on novel sliding mode control[J].Proceedings of the CSEE,2009,29(27):29.
[5]丁青青,鲁伟,徐长波,等.三相并联混合有源电力滤波器的无源控制策略[J].电机与控制学报,2014,18(5):1.DING Qingqing,LU Wei,XU Changbo,et al.Passivity-based control of a three-phase shunt hybrid active power filter[J].Electric Machines and Control,2014,18(5):1.
[6]姜卫东,汪磊,马炜程,等.一种电流跟踪误差补偿的三相有源电力滤波器的无差拍控制方法[J].中国电机工程学报,2016,36(1):1.JIANG Weidong,WANG Lei,MA Weicheng,et al.A control method based on current tracking error compensation of deadbeat control for a three-phase active power filter[J].Proceedings of the CSEE,2016,36(1):1.
[7]浣威,涂春鸣,罗安,等.采用模型参考自适应控制策略的单独注入式有源电力滤波器控制方法[J].电网技术,2010,34(9):70.HUAN Wei,TU Chunming,LUO An,et al.Control method of hybrid active power filter with single injection branch applying model referenced adaptive control strategy[J].Power System Technology,2010,34(9):70.
[8]马兴,刘会金,崔雪,等.基于预测控制与H∞控制的有源电力滤波器设计[J].电工技术学报,2016,31(3):50.MA Xing,LIU Huijin,CUN Xue,et al.Active power filter design based on predictive control and H∞control[J].Transactions of China Electrotechnical Society,2016,31(3):50.
[9]李翠艳,张东纯,庄显义.重复控制综述[J].电机与控制学报,2005,9(1):37.LI Cuiyan,ZHANG Dongchun,ZHUANG Xianyi.Repetitive control—a survey[J].Electric Machines and Control,2005,9(1):37.
[10]宫金武,查晓明,陈佰锋.一种快速重复控制策略在APF中的实现和分析[J].电工技术学报,2011,26(10):110.GONG Jinwu,ZHA Xiaoming,CHEN Baifeng.Analysis and realization of a fast repetitive controller in active power filter system[J].Transactions of China Electrotechnical Society,2011,26(10):110.
[11]张宸宇,梅军,郑建勇,等.基于内置重复控制器改进无差拍的有源滤波器双滞环控制方法[J].电工技术学报,2015,30(22):124.ZHANG Chenyu,MEI Jun,ZHENG Jianyong,et al.Active power filter double hysteresis method with Improveddeadbeat control based on built-in repetitive controller[J].Transactions of China Electrotechnical Society,2015,33(22):124.
[12]ZOU Z X,ZHOU K L,WANG Z,et al.Frequency-adaptive fractional-order repetitive control of shunt active power filters[J].IEEE Transactions on Industrial Electronics,2015,62(3):1659.
[13]RODRIGUEZ A,GIRON C,SAEZ V,et al.Analysis of repetitivebased controllers for selective harmonic compensation in active power filters[C]//IECON 2010-36th Annual Conference on IEEE Industrial Electronics Society,November 7-10,2010,Glendale,Arizona.IEEE,2010:2013-2018.
[14]COATA-CASTELLO R,GRINO R,FOSSAS E.Odd-harmonic digital repetitive control of a single-phase current active filter[J].IEEE Transaction on Power Electronics,2004,19(4):1060.
[15]ESCOBAR G,MARTINEZ P R,LEYYA-RAMOS J.Analog circuits to implement repetitive controllers with feedforward for harmonic compensation[J].IEEE Transaction on Industrial Electronics,2007,54(1):567.
[16]ESCOBAR G,HERNANDEZ-BRIONES P G,MARTINEZ P R,et al.A repetitive-based controller for the compensation of 6k±1harmonic components[J].IEEE Transaction on Industrial Electronics.2008,55(8):3150.
[17]ZHOU K,WANG D,ZHANG B,et al.Plug-in dual-mode-structure repetitive controller for CVCF PWM inverters[J].IEEE Transactions on Industrial Electronics,2009,56(3):784.
[18]JIANG S,CAO D,LI Y,et al.Low-THD,fast-transient,and costeffective synchronous-frame repetitive controller for three-phase UPS inverters[J].IEEE Transaction on Power Electronics.2012,27(6):2994.
[19]MATTAVELLI P,MARAFAO F P.Repetitive-based control for selective harmonic compensation in active power filters[J].IEEE Transactions on Industrial Electronics,2004,51(5):1018.
[20]LU W Z,ZHOU K L,WANG D W,et al.A generic digital nk±m-order harmonic repetitive control scheme for PWM converters[J].IEEE Transactions on Industrial Electronics,2014,61(3):1516.
[21]孙驰,魏光辉,毕增军.基于同步坐标变换的三相不对称系统的无功与谐波电流的检测[J].中国电机工程学报,2003,23(12):43.SUN Chi,WEI Guanghui,BI Zenjun.Detection for reactive and harmonics currents of unbalanced three-phase systems based on synchronous reference frame transformation[J].Proceedings of the CSEE,2003,23(12):43.