三相逆变器并联系统中环流抑制的研究
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摘要
在三相逆变器并联系统中,由于环流的产生,使用传统PI控制具有一定的局限性。将模糊控制与PI控制相结合,通过模糊控制对PI控制器参数进行在线整定,并针对环流问题,增加了环流抑制环节。最后在MATLAB/Simulink仿真环境中搭建了2台三相逆变器并联系统,对无控制、传统PI控制和改进模糊PI控制的控制效果进行对比分析。仿真结果表明,所提控制方法对于逆变器并联系统中产生的环流有很好的抑制效果。
In the parallel three-phase inverter parallel system, the traditional PI control has some limitations due to the generation of circulating current. The fuzzy control is combined with PI control, and the parameters of PI controller are determined online by fuzzy control, and the circulation inhibition is increased for the circulation problem. Finally, two-parallel three-phase inverter system are built in Matlab/Simulink simulation, and the three methods of proposed improved control PI control and no control are compared and analyzed.The simulation results show that the proposed improved fuzzy PI control strategy has a good suppression effect on the circulating current resulted from the parallel inverter system.
In the parallel three-phase inverter parallel system, the traditional PI control has some limitations due to the generation of circulating current. The fuzzy control is combined with PI control, and the parameters of PI controller are determined online by fuzzy control, and the circulation inhibition is increased for the circulation problem. Finally, two-parallel three-phase inverter system are built in Matlab/Simulink simulation, and the three methods of proposed improved control PI control and no control are compared and analyzed.The simulation results show that the proposed improved fuzzy PI control strategy has a good suppression effect on the circulating current resulted from the parallel inverter system.
引文
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[15]唐杰,罗安,欧剑波,等.配电静止同步补偿器的模糊自适应PI控制策略[J].电工技术学报,2008,23(28):120-126.TANG Jie,LUO An,OU Jianbo,et al.Voltage control strategy of D-Statcom based on fuzzy-PI controller[J].Transactions of China Electrotechnical Society,2008,23(2):120-126.
[16]王晓涛,曾成碧,刘晨曦.基于模糊控制的并网逆变器的研究[J].电力系统保护与控制,2011,39(9):97-101.WANG Xiaotao,ZENG Chengbi,LIU Chenxi.Study of grid-connected inverter based on fuzzy control[J].Power System Protection and Control,2011,39(9):97-101.
[17]茌宏理,窦金生.基于模糊PID的永磁同步电机矢量控制系统的仿真研究[J].电子设计工程,2017,25(5):112-118.CHI Hongli,DOU Jinsheng.Simulation research of PMSM vector control based on fuzzy PID[J].Electronic Design Engineering,2017,25(5):112-118.
[18]张洪帅,王平,韩邦成.基于模糊PI模型参考自适应的高速永磁同步电机转子位置检测[J].中国电机工程学报,2015,34(12):1889-1896.ZHANG Hongshuai,WANG Ping,HAN Bangcheng.Rotor position measurement for high-speed permanent magnet synchronous motors based on fuzzy PI MRAS[J].Proceeding of the CSEE,2015,34(12):1889-1896.
[19]崔屹,周建萍,王涛,等.基于模糊PI算法的微电网主从控制策略[J].广东电力,2017,30(6):36-39.CUI Yi,ZHOU Jianping,WANG Tao.et al.Master-slave control strategy for micro-grid based on fuzzy PI algorithm[J].Guangdong Electric Power,2017,30(6):36-39.
[20]张学广,王瑞,徐殿国.并联型三相PWM变换器环流无差拍控制策略[J].中国电机工程学报,2013,33(6):31-37.ZHANG Xueguang,WANG Rui,XU Dianguo.A deadbeat control strategy for circulating-current in parallel connection systems of three-phase PWM converters[J].Proceeding of the CSEE,2013,33(6):31-37.
[21]张庆海,彭楚武,陈燕东,等.一种微电网多逆变器并联运行控制策略[J].中国电机工程学报,2012,32(25):126-132.ZHANG Qinghai,PENG Chuwu,CHEN Yandong,et al.A control strategy for parallel operation of multi-inverters in microgrid[J].Proceeding of the CSEE,2012,32(25):126-132.
[2]杨勇,阮毅,汤燕燕,等.风力发电系统中并网逆变器并联运行环流分析[J].高电压技术,2009,35(8):2012-2018.YANG Yong,RUAN Yi,TANG Yanyan,et al.Analysis of circulating current for direct parallel grid-connected inverters[J].High Voltage Engineering,2009,35(8):2012-2018.
[3]ITKONEN Toni.Parallel-operation three-phase voltage source inverters-circulating current modelling,analysis and mitigation[D].Finland:Lappeenranta University of Technology,2010.
[4]张兴,余畅舟,刘芳,等.光伏并网多逆变器并联建模及谐振分析[J].中国电机工程学报,2014,34(3):336-345.ZHANG Xing,YU Changzhou,LIU Fang,et al.Modeling and resonance analysis of multi-paralleled grid-tied inverters in PV systems[J].Proceeding of the CSEE,2014,34(3):336-345.
[5]肖华根,罗安,王逸超,等.微网中并联逆变器的环流控制方法[J].中国电机工程学报,2014,34(19):3098-3104.XIAO Huagen,LUO An,WANG Yichao,et al.A circulating current control method for paralleled inverters in microgrids[J].Proceeding of the CSEE,2014,34(19):3098-3104.
[6]张宇,段善旭,康勇,等.三相逆变器并联系统中零序环流的研究[J].中国电机工程学报,2006,26(13):62-67.ZHANG Yu,DUAN Shanxu,KANG Yong,et al.The research of zero-sequence circulating currents between parallel three-phase inverters[J].Proceeding of the CSEE,2006,26(13):62-67.
[7]TULADHAR A,JIN H,UNGER T,et al.Control strategy for parallel PWM converters with interleaved discontinuous space-vector modulation[J].IEEE Transactions on Industrial Applications,2000,36(1):131-138.
[8]温春雪,李建林,朱晓光,等.基于交错断续空间矢量调制的并联PWM变流器控制策略[J].电工技术学报,2009,24(10):71-80.WEN Chunxue,LI Jianlin,ZHU Xiaoguang,et al.Control strategy for parallel PWM converters with interleaved discontinuous space-vector modulation[J].Transaction of China Electrotechnical Society,2009,24(10):71-80.
[9]AZEDDINE H,HUGUES R,JEAN-PHILIPPE M,et al.Flatness-based control of three-phase inverter with output LC filter[J].IEEE Transactions on Industrial Applications,2012,59(7):2890-2897.
[10]AHMED S,HASSAN M,IVANO F,et al.Reliability improvement approach based on flatness control of parallelconnected inverters[J].IEEE Transactions on Power Electronics,2017,32(1):681-692.
[11]江金鱼,黄磊.三相并网逆变器微分平坦控制策略[J].电测与仪表,2016,53(7):45-50.JIANG Jinyu,HUANG Lei.Control strategy of three-phase grid-connected inverter based on differential flatness[J].Electrical Measurement and Instrumentation,2016,53(7):45-50.
[12]YE Zhihong,BOROYEVICH D,CHOI Jae-Young,et al.Control of circulating current in two parallel three-phase boost rectifiers[J].IEEE Transactions on Power Electronics,2002,17(5):609-605.
[13]夏曼,于航,李鹏,等.并联逆变器集群无功控制之间的交互影响[J].电网与清洁能源,2017,33(4):92-98.XIA Man,YU Hang,LI Peng,et al.Interactive influences of reactive power control in clustered grid-connected PV inverters[J].Power System and Clean Energy,2017,33(4):92-98.
[14]郭利辉,张元敏,李永辉,等.三相电压型PWM变流器交流侧LCL滤波器的有源阻尼策略研究[J].电力系统保护与控制,2017,45(4):132-138.GUO Lihui,ZHANG Yuanmin,LI Yonghui,et al.Research on active damping strategy of LCL filter in threephase voltage source PWM rectifier[J].Power System Protection and Control,2017,45(4):132-138.
[15]唐杰,罗安,欧剑波,等.配电静止同步补偿器的模糊自适应PI控制策略[J].电工技术学报,2008,23(28):120-126.TANG Jie,LUO An,OU Jianbo,et al.Voltage control strategy of D-Statcom based on fuzzy-PI controller[J].Transactions of China Electrotechnical Society,2008,23(2):120-126.
[16]王晓涛,曾成碧,刘晨曦.基于模糊控制的并网逆变器的研究[J].电力系统保护与控制,2011,39(9):97-101.WANG Xiaotao,ZENG Chengbi,LIU Chenxi.Study of grid-connected inverter based on fuzzy control[J].Power System Protection and Control,2011,39(9):97-101.
[17]茌宏理,窦金生.基于模糊PID的永磁同步电机矢量控制系统的仿真研究[J].电子设计工程,2017,25(5):112-118.CHI Hongli,DOU Jinsheng.Simulation research of PMSM vector control based on fuzzy PID[J].Electronic Design Engineering,2017,25(5):112-118.
[18]张洪帅,王平,韩邦成.基于模糊PI模型参考自适应的高速永磁同步电机转子位置检测[J].中国电机工程学报,2015,34(12):1889-1896.ZHANG Hongshuai,WANG Ping,HAN Bangcheng.Rotor position measurement for high-speed permanent magnet synchronous motors based on fuzzy PI MRAS[J].Proceeding of the CSEE,2015,34(12):1889-1896.
[19]崔屹,周建萍,王涛,等.基于模糊PI算法的微电网主从控制策略[J].广东电力,2017,30(6):36-39.CUI Yi,ZHOU Jianping,WANG Tao.et al.Master-slave control strategy for micro-grid based on fuzzy PI algorithm[J].Guangdong Electric Power,2017,30(6):36-39.
[20]张学广,王瑞,徐殿国.并联型三相PWM变换器环流无差拍控制策略[J].中国电机工程学报,2013,33(6):31-37.ZHANG Xueguang,WANG Rui,XU Dianguo.A deadbeat control strategy for circulating-current in parallel connection systems of three-phase PWM converters[J].Proceeding of the CSEE,2013,33(6):31-37.
[21]张庆海,彭楚武,陈燕东,等.一种微电网多逆变器并联运行控制策略[J].中国电机工程学报,2012,32(25):126-132.ZHANG Qinghai,PENG Chuwu,CHEN Yandong,et al.A control strategy for parallel operation of multi-inverters in microgrid[J].Proceeding of the CSEE,2012,32(25):126-132.