基于E-L模型的Z源T型逆变器无源控制策略研究
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摘要
首次将非线性的无源控制(PBC)理论引入到Z源T型逆变器的控制上,该方法不需要对受控对象进行线性化处理,通过选取合适的能量函数与注入阻尼,确定无源控制规律函数,简化了控制系统的结构。首先,根据Z源T型并网逆变器的数学模型写出其无源欧拉(E-L)表达式,然后,选取适当的能量函数与注入阻尼,确定无源控制规律函数,并结合SVPWM算法驱动逆变器开关动作;最后,软件仿真实验和实际硬件样机试验验证了无源控制系统方法的可行性和有效性。
For the first time, the nonlinear passivity-based control(PBC) theory is introduced to the control of Z-source T-type inverter. The method does not need to linearize the controlled object. By choosing appropriate energy function and injection damping, the passive control law function is determined and the structure of the control system is simplified. First, according to the Z-source T-type inverter inverter mathematical model to write its passive Euler(E-L) expression. Then, the appropriate energy function and injection damping are selected to determine the passive control law function, and combining the SVPWM algorithm to drive the inverter switch action. Finally, the feasibility and effectiveness of the passivity-based control system are verified by software simulation experiment and actual hardware prototype test.
For the first time, the nonlinear passivity-based control(PBC) theory is introduced to the control of Z-source T-type inverter. The method does not need to linearize the controlled object. By choosing appropriate energy function and injection damping, the passive control law function is determined and the structure of the control system is simplified. First, according to the Z-source T-type inverter inverter mathematical model to write its passive Euler(E-L) expression. Then, the appropriate energy function and injection damping are selected to determine the passive control law function, and combining the SVPWM algorithm to drive the inverter switch action. Finally, the feasibility and effectiveness of the passivity-based control system are verified by software simulation experiment and actual hardware prototype test.
引文
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[4]杨淑英,张兴,张崇巍,等.LCL滤波电压源并网逆变器多环控制策略设计[J].电力系统自动化,2011,35(5):66-70.Yang Shuying,Zhang Xing,Zhang Chongwei,et al.Strategy design of multiple feedback loop control for grid-connected voltage source inverter with LCL filter[J].Automation of Electric Power Systems,2011,35(5):66-70(in Chinese).
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[8]杨前,宋蕙慧,曲延滨.Z源逆变器并网独立双模式控制策略研究[J].电测与仪表,2014,51(6):55-59.Yang Qian,Song Huihui,Qu Yanbin.Research on control strategy of Z-source inverter with double mode of grid-connection and stand-alone[J].Electrical Measurement and Instrumentation,2014,51(6):55-59(in Chinese).
[9]Yang S T,Peng F Z,Lei Q,et al.Current-fed quasi-Z-source inverter with voltage buck–boost and regeneration capability[J].IEEE Transactions on Industry Applications,2011,47(2):882-892.
[10]吴冬春,吴云亚,阚加荣,等.升压单元高增益准Z源逆变器[J].电力系统自动化,2015,39(21):138-143.Wu Dongchun,Wu Yunya,Kan Jiarong,et al.A high set-up quasiZ-source inverter based on voltage-lifting unit[J].Automation of Electric Power Systems,2015,39(21):138-143(in Chinese).
[11]Bo Yang.Design and analysis of a grid-connected photovoltaic power system[J].IEEE Transactions on Power Electronics,2010,25(4):992-1000.
[12]程启明,褚思远,程尹曼,等.Z源三电平并网逆变器的准PR控制系统[J].高电压技术,2016,42(10):3075-3082.Cheng Qiming,Chu Siyuan,Cheng Yinman,et al.Quasi-PR control system of grid-connected Z-source three-level inverter[J].High Voltage Engineering,2016,42(10):3075-3082(in Chinese).
[13]王晓刚,肖立业.Z源逆变器直流链电压滑模控制研究[J].电机与控制学报,2015,19(2):1-6.Wang Xiaogang,Xiao Liye.Sliding mode control for DC-link voltage of Z-source inverter[J].Electric Machines and Control,2015,19(2):1-6(in Chinese).
[14]王久和,黄立培,杨秀媛.三相电压型PWM整流器的无源性功率控制[J].中国电机工程学报,2008,28(21):20-25.Wang Jiuhe,Huang Lipei,Yang Xiuyuan.Power control of three-phase boost-type PWM rectifier based on passivity[J].Proceedings of the CSEE,2008,28(21):20-25(in Chinese).
[15]孟超,李钷,洪永强.无变压器并联混合型有源电力滤波器的无源性控制[J].电力系统自动化,2013,37(7):108-112,133.Meng Chao,Li Po,Hong Yongqiang.A novel passive control strategy for transformerless shunt hybrid active power filter[J].Automation of Electric Power Systems,2013,37(7):108-112,133(in Chinese).
[16]范心明,管霖,夏成军,等.基于PCHD模型的柔性直流输电鲁棒控制[J].电力系统自动化,2013,37(15):40-46.Fan Xinming,Guan Lin,Xia Chengjun,et al.PCHD based robust control of VSC-HVDC transmission based on port-controlled Hamiltonian with dissipation[J].Automation of Electric Power Systems,2013,37(15):40-46(in Chinese).
[17]王久和,张巧杰,李萍,等.基于PCHD模型的三相四线电压型PWM整流器无源控制[J].电工技术学报,2015,30(14):354-361.Wang Jiuhe,Zhang Qiaojie,Li Ping,et al.Passivity based control of three-phase four-wire voltage source PWM rectifier based on PCHD model[J].Transactions of China Electrotechnical Society,2015,30(14):354-361(in Chinese).
[18]程启明,张强,程尹曼,等.基于PCHD模型的光伏Z源并网逆变器无源控制[J].高电压技术,2016,42(9):2723-2732.Cheng Qiming,Zhang Qiang,Cheng Yinman,et al.Passivity-based control of PV Z-source grid-connected inverter based on PCHD model[J].High Voltage Engineering,2016,42(9):2723-2732(in Chinese).
[19]钱甜甜,苗世洪,刘子文,等.基于PCHD模型的VSC-HVDC的无源控制及滑模辅助改进控制[J].电工技术学报,2016,31(3):138-144.Qian Tiantian,Miao Shihong,Liu Ziwen,et al.Passive control and auxiliary sliding mode control strategy for VSC-HVDC system based on PCHD model[J].Transactions of China Electrotechnical Society,2016,31(3):138-144(in Chinese).
[20]Schweizer M,Kolar J W.Design and implementation of a highly efficient three-level T-type converter for low-voltage applications[J].IEEE Transactions on Power Electronics,2013,28(2):899-907.
[21]Choi U M,Lee K B,Blaabjerg F.Diagnosis and tolerant strategy of an open-switch fault for T-type three-level inverter systems[J].IEEE Transactions on Industry Applications,2014,50(1):495-508.
[22]张百乐,王久和,赵凤娇.TNPC型光伏并网逆变器的PCHD建模与控制[J].中国电机工程学报,2014,34(S1):204-210.Zhang Baile,Wang Jiuhe,Zhao Fengjiao.The PCHD model and control of TNPC PV grid-connected inverter[J].Proceedings of the CSEE,2014,34(S1):204-210(in Chinese).
[23]李长云,张超,张迎春.Z-源/准Z-源逆变器拓扑的演绎机理[J].高电压技术,2016,42(7):2111-2118.Li Changyun,Zhang Chao,Zhang Yingchun.Evolution mechanism of Z-source/quasi-Z-source inverter topologies[J].High Voltage Engineering,2016,42(7):2111-2118(in Chinese).
[2]刘勇超,葛兴来,冯晓云.两电平与三电平NPC逆变器单桥臂故障重构拓扑SVPWM算法比较研究[J].中国电机工程学报,2016,36(3):775-783.Liu Yongchao,Ge Xinglai,Feng Xiaoyun.Comparison study of SVPWM algorithms of the post-fault reconfigured topologies for two-level and three-level NPC inverters with failure of a leg[J].Proceedings of the CSEE,2016,36(3):775-783(in Chinese).
[3]赵彪,于庆广,王立雯.Z源双向DC-DC变换器及其移相直通控制策略[J].中国电机工程学报,2011,31(9):43-49.Zhao Biao,Yu Qingguang,Wang Liwen.Z-source bi-directional DC-DC converter and its phase shifting-short control strategy[J].Proceedings of the CSEE,2011,31(9):43-49(in Chinese).
[4]杨淑英,张兴,张崇巍,等.LCL滤波电压源并网逆变器多环控制策略设计[J].电力系统自动化,2011,35(5):66-70.Yang Shuying,Zhang Xing,Zhang Chongwei,et al.Strategy design of multiple feedback loop control for grid-connected voltage source inverter with LCL filter[J].Automation of Electric Power Systems,2011,35(5):66-70(in Chinese).
[5]徐聪,程启明,李明,等.Z源逆变器及其多种改进拓扑结构的比较[J].电网技术,2014,38(10):2926-2931.Xu Cong,Cheng Qiming,Li Ming,et al.A comparative simulation study on Z-source inverter and its various improvement topologies[J].Power System Technology,2014,38(10):2926-2931(in Chinese).
[6]Peng F Z.Z-source inverter[J].IEEE Transactions on Industry Applications,2003,39(2):504-510.
[7]刘孝辉,郑建勇,黄金军,等.光伏并网Z源逆变器无差拍解耦控制策略[J].电力系统自动化,2012,36(12):25-29.Liu Xiaohui,Zhang Jianyong,Huang Jinjun,et al.A deadbeat decoupling control strategy of Z-source photovoltaic grid-connected inverter[J].Automation of Electric Power Systems,2012,36(12):25-29(in Chinese).
[8]杨前,宋蕙慧,曲延滨.Z源逆变器并网独立双模式控制策略研究[J].电测与仪表,2014,51(6):55-59.Yang Qian,Song Huihui,Qu Yanbin.Research on control strategy of Z-source inverter with double mode of grid-connection and stand-alone[J].Electrical Measurement and Instrumentation,2014,51(6):55-59(in Chinese).
[9]Yang S T,Peng F Z,Lei Q,et al.Current-fed quasi-Z-source inverter with voltage buck–boost and regeneration capability[J].IEEE Transactions on Industry Applications,2011,47(2):882-892.
[10]吴冬春,吴云亚,阚加荣,等.升压单元高增益准Z源逆变器[J].电力系统自动化,2015,39(21):138-143.Wu Dongchun,Wu Yunya,Kan Jiarong,et al.A high set-up quasiZ-source inverter based on voltage-lifting unit[J].Automation of Electric Power Systems,2015,39(21):138-143(in Chinese).
[11]Bo Yang.Design and analysis of a grid-connected photovoltaic power system[J].IEEE Transactions on Power Electronics,2010,25(4):992-1000.
[12]程启明,褚思远,程尹曼,等.Z源三电平并网逆变器的准PR控制系统[J].高电压技术,2016,42(10):3075-3082.Cheng Qiming,Chu Siyuan,Cheng Yinman,et al.Quasi-PR control system of grid-connected Z-source three-level inverter[J].High Voltage Engineering,2016,42(10):3075-3082(in Chinese).
[13]王晓刚,肖立业.Z源逆变器直流链电压滑模控制研究[J].电机与控制学报,2015,19(2):1-6.Wang Xiaogang,Xiao Liye.Sliding mode control for DC-link voltage of Z-source inverter[J].Electric Machines and Control,2015,19(2):1-6(in Chinese).
[14]王久和,黄立培,杨秀媛.三相电压型PWM整流器的无源性功率控制[J].中国电机工程学报,2008,28(21):20-25.Wang Jiuhe,Huang Lipei,Yang Xiuyuan.Power control of three-phase boost-type PWM rectifier based on passivity[J].Proceedings of the CSEE,2008,28(21):20-25(in Chinese).
[15]孟超,李钷,洪永强.无变压器并联混合型有源电力滤波器的无源性控制[J].电力系统自动化,2013,37(7):108-112,133.Meng Chao,Li Po,Hong Yongqiang.A novel passive control strategy for transformerless shunt hybrid active power filter[J].Automation of Electric Power Systems,2013,37(7):108-112,133(in Chinese).
[16]范心明,管霖,夏成军,等.基于PCHD模型的柔性直流输电鲁棒控制[J].电力系统自动化,2013,37(15):40-46.Fan Xinming,Guan Lin,Xia Chengjun,et al.PCHD based robust control of VSC-HVDC transmission based on port-controlled Hamiltonian with dissipation[J].Automation of Electric Power Systems,2013,37(15):40-46(in Chinese).
[17]王久和,张巧杰,李萍,等.基于PCHD模型的三相四线电压型PWM整流器无源控制[J].电工技术学报,2015,30(14):354-361.Wang Jiuhe,Zhang Qiaojie,Li Ping,et al.Passivity based control of three-phase four-wire voltage source PWM rectifier based on PCHD model[J].Transactions of China Electrotechnical Society,2015,30(14):354-361(in Chinese).
[18]程启明,张强,程尹曼,等.基于PCHD模型的光伏Z源并网逆变器无源控制[J].高电压技术,2016,42(9):2723-2732.Cheng Qiming,Zhang Qiang,Cheng Yinman,et al.Passivity-based control of PV Z-source grid-connected inverter based on PCHD model[J].High Voltage Engineering,2016,42(9):2723-2732(in Chinese).
[19]钱甜甜,苗世洪,刘子文,等.基于PCHD模型的VSC-HVDC的无源控制及滑模辅助改进控制[J].电工技术学报,2016,31(3):138-144.Qian Tiantian,Miao Shihong,Liu Ziwen,et al.Passive control and auxiliary sliding mode control strategy for VSC-HVDC system based on PCHD model[J].Transactions of China Electrotechnical Society,2016,31(3):138-144(in Chinese).
[20]Schweizer M,Kolar J W.Design and implementation of a highly efficient three-level T-type converter for low-voltage applications[J].IEEE Transactions on Power Electronics,2013,28(2):899-907.
[21]Choi U M,Lee K B,Blaabjerg F.Diagnosis and tolerant strategy of an open-switch fault for T-type three-level inverter systems[J].IEEE Transactions on Industry Applications,2014,50(1):495-508.
[22]张百乐,王久和,赵凤娇.TNPC型光伏并网逆变器的PCHD建模与控制[J].中国电机工程学报,2014,34(S1):204-210.Zhang Baile,Wang Jiuhe,Zhao Fengjiao.The PCHD model and control of TNPC PV grid-connected inverter[J].Proceedings of the CSEE,2014,34(S1):204-210(in Chinese).
[23]李长云,张超,张迎春.Z-源/准Z-源逆变器拓扑的演绎机理[J].高电压技术,2016,42(7):2111-2118.Li Changyun,Zhang Chao,Zhang Yingchun.Evolution mechanism of Z-source/quasi-Z-source inverter topologies[J].High Voltage Engineering,2016,42(7):2111-2118(in Chinese).