基于空间矢量的三电平间接矩阵变换器简化策略研究
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摘要
针对传统三电平空间矢量脉宽调制的开关矢量作用次序的选取较为复杂、算法的运算量较大等缺点,提出一种运用到三电平间接矩阵变换器上的简化空间矢量调制策略。该方法在整流级采用无零矢量的调制策略,保证输入电压功率因数达到最大。逆变级采用简化扇区的空间矢量调制,使参考电压旋转归一到第一扇区,然后进行参考电压修正和降电平处理。该调制策略与传统调制策略相比,不仅使算法运算量比原来减少,无需预先存储大量数据,还使谐波畸变率比原来降低。通过仿真对简化的空间矢量调制策略进行验证,并且搭建样机平台,用实验的方法对该策略的可行性和正确性进行验证。
According to the disadvantages of traditional three-level space vector pulse-width modulation with the complexity of the selection of switching vector order and the large computational complexity of the algorithm, a simplified space vector modulation strategy applied to the three-level indirect matrix converter is proposed. On the device,this method adopts a modulation strategy with no zero vector in the rectification stage to ensure that the input voltage power factor reaches a maximum; the inverter stage uses space vector modulation of the simplified sector reconstruction to rotate the reference voltage into the first sector. Then reference voltage correction and level-down processing are performed. Compared with the traditional modulation strategy, this modulation strategy not only reduces the computational complexity of the algorithm but also eliminates the need to store a large amount of data in advance, and also reduces the harmonic distortion ratio. The simplified space vector modulation strategy is verified on simulation and an experimental prototype platform is built. The correctness and feasibility of the modulation strategy are verified by experimental methods.
According to the disadvantages of traditional three-level space vector pulse-width modulation with the complexity of the selection of switching vector order and the large computational complexity of the algorithm, a simplified space vector modulation strategy applied to the three-level indirect matrix converter is proposed. On the device,this method adopts a modulation strategy with no zero vector in the rectification stage to ensure that the input voltage power factor reaches a maximum; the inverter stage uses space vector modulation of the simplified sector reconstruction to rotate the reference voltage into the first sector. Then reference voltage correction and level-down processing are performed. Compared with the traditional modulation strategy, this modulation strategy not only reduces the computational complexity of the algorithm but also eliminates the need to store a large amount of data in advance, and also reduces the harmonic distortion ratio. The simplified space vector modulation strategy is verified on simulation and an experimental prototype platform is built. The correctness and feasibility of the modulation strategy are verified by experimental methods.
引文
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[16]李利娟,朱建林,刘红良.三电平矩阵变换器的电路拓扑与控制策略[J].电力自动化设备,2008,28(3):63-67.LI Lijuan,ZHU Jianlin,LIU Hongliang.Topology and control strategy of three-level matrix converter[J].Electric Power Automation Equipment,2008,28(3):63-67.
[17]刘飞,宫金武,彭光强,等.一种复合式重复控制在并联型有源电力滤波器设计中的应用[J].电工技术学报,2012,27(12):138-145.LIU Fei,GONG Jinwu,PENG Guangqiang,et al.Application of compound repetitive control in shunt active power filter[J].Transactions of China Electrotechnical Society,2012,27(12):138-145.
[18]胡存刚,胡军,张云雷,等.三电平ANPC变换器SVPWM优化控制方法[J].电机与控制学报,2016,20(6):32-41.HU Cungang,HU Jun,ZHANG Yunlei,et al.Optimization control for three-level active neutral-point-clamped converter using SVPWM[J].Electric Machines and Control,2016,20(6):32-41.
[19]朱建林,李利娟,刘红良,等.使用空间矢量调制的三电平矩阵变换器控制策略[J].中国电机工程学报,2008,28(9):12-16.ZHU Jianlin,LI Lijuan,LIU Hongliang,et al.Simulation of three-level matrix converter based on space vector modulation[J].Proceedings of the CSEE,2008,28(9):12-16.
[20]XU L,LI Y,WANG K,et al.Research on the amplitude coefficient for multilevel matrix converter space vector modulation[J].IEEE Transactions on Power Electronics,2012,27(8):3544-3556.
[21]XU L,CLARE J C,WHEELER P W,et al.Capacitor clamped multilevel matrix converter space vector modulation[J].IEEE Transactions on Industrial Electronics,2012,59(1):105-115.
[2]杨喜军,龚幼民.矩阵变换器的理论与应用[M].北京:机械工业出版社,2010.
[3]付瑞清.基于复合控制的三电平APF的研究[J].电力系统保护与控制,2017,45(14):105-112.FU Ruiqing.Research on three-level active power filter based on composite control[J].Power System Protection and Control,2017,45(14):105-112.
[4]马临超,蒋炜华,薛宝星.NPC型三电平永磁同步风力发电并网逆变器模型预测控制满足低电压穿越要求研究[J].电力系统保护与控制,2017,45(16):151-156.MA Linchao,JIANG Weihua,XUE Baoxing.Model predictive current control of grid-connected neutralpoint-clamped permanent magnet synchronous wind power inverters to meet low-voltage ride-through requirements[J].Power System Protection and Control,2017,45(16):151-156.
[5]林茂,李颖晖,李宁,等.三电平容错拓扑分析及预测控制研究[J].电力系统保护与控制,2017,45(1):60-66.LIN Mao,LI Yinghui,LI Ning,et al.A new fault tolerant three-level inverter and FCS-MPC research[J].Power System Protection and Control,2017,45(1):60-66.
[6]张国荣,蒋继勇,吴飞.一种基于空间矢量的APF直流侧电容电压设计和优化方法[J].电力系统保护与控制,2016,44(18):1-7.ZHANG Guorong,JIANG Jiyong,WU Fei.A design and optimization method of value of DC-side voltage for APFbased on space vector[J].Power System Protection and Control,2016,44(18):1-7.
[7]王晓刚,张杰.开关电感型Z源三电平逆变器直流链电压控制研究[J].电网与清洁能源,2017,33(10):1-8.WANG Xiaogang,ZHANG Jie.DC-link voltage control of switched-inductor Z-source three-level inverter[J].Power System and Clean Energy,2017,33(10):1-8.
[8]张晓锋,夏益辉,乔鸣忠,等.矩阵变换器间接空间矢量逆变级过调制策略优化设计[J].电力自动化设备,2016,36(2):40-44.ZHANG Xiaofeng,XIA Yihui,QIAO Mingzhong,et al.Optimal design of indirect space-vector over-modulation strategy for inverter stage of matrix converter[J].Electric Power Automation Equipment,2016,36(2):40-44.
[9]YAO Z,ZHANG Q,CHEN P,et al.Research on fault diagnosis for MMC-HVDC systems[J].Protection and Control of Modern Power Systems,2016,1(1):71-77.DOI:10.1186/s41601-016-0022-0
[10]郑诗程,彭勃,徐礼萍.T型三电平拓扑的PWM控制策略[J].电力系统及其自动化学报,2016,28(2):93-97.ZHENG Shicheng,PENG Bo,XU Liping.PWM control strategy of T-type three-level topology[J].Proceedings of the CSU-EPSA,2016,28(2):93-97.
[11]吴昊天,顾雪平,李航.基于MMC-HVDC的永磁直驱风机并网控制策略[J].电网与清洁能源,2018,34(7):51-56.WU Haotian,GU Xueping,LI Hang.Grid connection control strategy of permanent magnet direct drive fan based on MMC-HVDC[J].Power System and Clean Energy,2018,34(7):51-56.
[12]HAIDER S,LI G,WANG K.A dual control strategy for power sharing improvement in islanded mode of ACmicrogrid[J].Protection and Control of Modern Power Systems,2018,3(3):111-118.DOI:10.1186/s41601-018-0084-2.
[13]叶满园,李宋,蔡鸿.三电平逆变器SHEPWM技术的所有解问题[J].电力系统及其自动化学报,2017,29(10):18-21.YE Manyuan,LI Song,CAI Hong.Complete solutions for SHEPWM of three-level inverter[J].Proceedings of the CSU-EPSA,2017,29(10):18-21.
[14]张友军,陈可,叶欣,等.Boost型三电平AC/AC变换器[J].电机与控制学报,2017,21(3):48-54.ZHANG Youjun,CHEN Ke,YE Xin,et al.Boost type three-level AC/AC converter[J].Electric Machines and Control,2017,21(3):48-54.
[15]沈渭程,刘丽娟,董开松,等.光伏并网NPC三电平逆变器调制算法研究[J].电网与清洁能源,2018,34(6):69-75.SHEN Weicheng,LIU Lijuan,DONG Kaisong,et al.Research on modulation algorithm of NPC three level inverter for photovoltaic grid connection[J].Power System and Clean Energy,2018,34(6):69-75.
[16]李利娟,朱建林,刘红良.三电平矩阵变换器的电路拓扑与控制策略[J].电力自动化设备,2008,28(3):63-67.LI Lijuan,ZHU Jianlin,LIU Hongliang.Topology and control strategy of three-level matrix converter[J].Electric Power Automation Equipment,2008,28(3):63-67.
[17]刘飞,宫金武,彭光强,等.一种复合式重复控制在并联型有源电力滤波器设计中的应用[J].电工技术学报,2012,27(12):138-145.LIU Fei,GONG Jinwu,PENG Guangqiang,et al.Application of compound repetitive control in shunt active power filter[J].Transactions of China Electrotechnical Society,2012,27(12):138-145.
[18]胡存刚,胡军,张云雷,等.三电平ANPC变换器SVPWM优化控制方法[J].电机与控制学报,2016,20(6):32-41.HU Cungang,HU Jun,ZHANG Yunlei,et al.Optimization control for three-level active neutral-point-clamped converter using SVPWM[J].Electric Machines and Control,2016,20(6):32-41.
[19]朱建林,李利娟,刘红良,等.使用空间矢量调制的三电平矩阵变换器控制策略[J].中国电机工程学报,2008,28(9):12-16.ZHU Jianlin,LI Lijuan,LIU Hongliang,et al.Simulation of three-level matrix converter based on space vector modulation[J].Proceedings of the CSEE,2008,28(9):12-16.
[20]XU L,LI Y,WANG K,et al.Research on the amplitude coefficient for multilevel matrix converter space vector modulation[J].IEEE Transactions on Power Electronics,2012,27(8):3544-3556.
[21]XU L,CLARE J C,WHEELER P W,et al.Capacitor clamped multilevel matrix converter space vector modulation[J].IEEE Transactions on Industrial Electronics,2012,59(1):105-115.