摘要
有源中点钳位型(ANPC)多电平变流器是一种新型的变流器。该文首先介绍七电平有源中点钳位型(ANPC-7L)双PWM变流器同步电机矢量控制系统的结构及变流器控制问题;然后研究系统的预充电问题,提出一种分段同步的预充电控制策略;并对ANPC-7L变流器在不平衡电网下的PWM整流控制策略及同步电机矢量控制策略进行研究。在一台380 V/5 kW的ANPC-7L双PWM变流器样机上取得的实验结果表明该文所提算法是有效的。
Active neutral-point-clamped(ANPC) multilevel converter is a newly emerging converter. This paper introduced the structure of seven-level ANPC(ANPC-7 L) dual PWM synchronous motor vector control system and the control strategy of ANPC-7 L converter first, and then studied the problem of system pre-charging, proposed a step by step synchronized pre-charging strategy, after that this paper studied the PWM rectifier control strategy under unbalanced grid and the control strategy of synchronous motor vector control system. The feasibility of the proposed algorithms are verified by experimental results from a 380 V/5 kW ANPC-7 L dual PWM converter.
引文
[1]Kouro S,Malinowski M,Gopakumar K,et al.Recent advances and industrial applications of multilevel converters[J].IEEE Transactions on Industrial Electronics,2010,57(8):2553-2580.
[2]Rodriguez J,Bernet S,Wu Bin,et al.Multilevel voltage-source-converter topologies for industrial medium-voltage drives[J].IEEE Transactions on Industrial Electronics,2010,54(6):2930-2945.
[3]Nabae A,Takahashi I,Akagi H.A new neutral-pointclamped PWM inverter[J].IEEE Transactions on Industry Applications,1981,IA-17(5):518-523.
[4]Meynard T A,Foch H,Thomas P,et al.Multicell converters:basic concepts and industry applications[J].IEEE Transactions on Industrial Electronics,2002,49(5):955-964.
[5]Hammond P W.A new approach to enhance power quality for medium voltage AC drives[J].IEEETransactions on Industry Applications,1997,33(1):202-208.
[6]Sanchez-Ruiz A,Mazuela M,Alvarez S,et al.Medium voltage-high power converter topologies comparison procedure,for a 6.6 kV drive application using 4.5 kV IGBT modules[J].IEEE Transactions on Industrial Electronics,2102,59(3):1462-1476.
[7]Fazel S S,Bernet S,Krug D,et al.Design and comparison of 4-kV neutral-point-clamped,flyingcapacitor,and series-connected H-bridge multilevel converters[J].IEEE Transactions on Industry Applications,2007,43(4):1032-1040.
[8]Ding Guanjun,Tang Guangfu,He Zhiyuan,et al.New technologies of voltage source converter(VSC)for HVDC transmission system based on VSC[C]//2008IEEE Power and Energy Society General MeetingConversion and Delivery of Electrical Energy in the21st Century,Pittsburgh,PA,USA,2008:1-8.
[9]Gateau G,Meynard T A,Foch H.Stacked multicell converter(SMC):properties and design[C]//2001IEEE 32nd Annual Power Electronics Specialists Conference,Vancouver,BC,Canada,2001,3:1583-1588.
[10]Delmas L,Gateau G,Meynard T A,et al.Stacked multicell converter(SMC):control and natural balancing[C]//2002 IEEE 33rd Annual IEEE Power Electronics Specialists Conference,Cairns,Qld,Australia,2002,2:689-694.
[11]Barbosa P,Steimer P,Meysenc L,et al.Active neutral-point-clamped multilevel converters[C]//2005IEEE 36th Power Electronics Specialists Conference,Recife,Brazil,2005:2296-2301.
[12]Guan Minyuan,Xu Zheng.Modeling and control of a modular multilevel converter-based HVDC system under unbalanced grid conditions[J].IEEE Transactions on Power Electronics,2012,27(12):4858-4867.
[13]Hagiwara M,Nishimura K,Akagi H.A mediumvoltage motor drive with a modular multilevel PWMinverter[J].IEEE Transactions on Power Electronics,2010,25(7):1786-1799.
[14]Kieferndorf F,Basler M,Serpa L A,et al.A new medium voltage drive system based on ANPC-5Ltechnology[C]//2010 IEEE International Conference on Industrial Technology,Vina del Mar,Chile,2010:643-649.
[15]Geyer T,Oikonomou N,Papafotiou G,et al.Model predictive pulse pattern control[J].IEEE Transactions on Industry Applications,2012,48(2):663-676.
[16]Yang Jiatao,Yang Sijia,Li Rui.A novel and reliable modulation strategy for active neutral-point clamped five-level converter[C]//2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia,Kaohsiung,Taiwan,2017:1162-1167.
[17]Liu Dong,Deng Fujin,Chen Zhe.Five-level activeneutral-point-clamped DC/DC converter for mediumvoltage DC grids[J].IEEE Transactions on Power Electronics,2017,32(5):3402-3412.
[18]Sheng Weihui,Ge Qiongxuan.A novel seven-level active neutral-point-clamped converter topology with auxiliary commutating branches and its commutating strategies[C]//2017 19th European Conference on Power Electronics and Applications,Warsaw,Poland,2017:P.1-P.10.
[19]Konstantinou G,Pulikanti S R,Ciobotaru M,et al.The seven-level flying capacitor based ANPC converter for grid integration of utility-scale PV systems[C]//2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems,Aalborg,Denmark,2012:592-597.
[20]Pulikanti S R,Konstantinou G S,Agelidis V G.An nlevel flying capacitor based active neutral point clamped converter[C]//The 2nd International Symposium on Power Electronics for Distributed Generation Systems,Hefei,China,2010:553-558.
[21]Pulikanti S R,Konstantinou G,Agelidis V G.Generalization of flying-capacitor based activeneutral-point-clamped multilevel converter using voltage-level modulation[J].IET Power Electronic,2012,5(4):456-466.
[22]Wang Kui,Zheng Zedong,Li Yongdong,et al.Neutral-point potential balancing of a five-level active neutral-point-clamped inverter[J].IEEE Transactions on Power Electronics,2013,60(5):1907-1918.
[23]王奎,郑泽东,李永东.基于零序电压注入的五电平有源中点钳位型逆变器多目标优化控制策略[J].电工技术学报,2014,29(6):129-135.Wang Kui,Zheng Zedong,Li Yongdong.Multipurpose optimal control strategy of a five-level active neutral-point clamped inverter based on zerosequence voltage injection[J].Transactions of China Electrotechnical Society,2014,29(6):129-135.
[24]王奎,郑泽东,李永东,等.基于五电平有源中点钳位型双变换器的异步电机矢量控制系统[J].电工技术学报,2014,29(2):247-252.Wang Kui,Zheng Zedong,Li Yongdong,et al.Vector control system for induction motors based on fivelevel active neutral-point-clamped dual-PWM converter[J].Transactions of China Electrotechnical Society,2014,29(2):247-252.
[25]刘战,谭国俊,李浩,等.基于空间电压矢量的有源中点箝位型五电平逆变器母线中点电压平衡问题的研究[J].中国电机工程学报,2015,35(24):6499-6507.Liu Zhan,Tan Guojun,Li Hao,et al.Research on neutral-point potential balancing problems of active neutral-point-clamped five-level inverter based on space vector pulse width modulation[J].Proceedings of the CSEE,2015,35(24):6499-6507.
[26]Sheng Weihui,Ge Qiongxuan.Research on neutralpoint potential balancing algorithm for seven-level active neutral-point-clamped inverters[C]//2017 19th European Conference on Power Electronics and Applications,Warsaw,Poland,2017:P.1-P.10.
[27]Sheng Weihui,Ge Qiongxuan.An optimized neutralpoint potential balancing algorithm for seven-level ANPC inverters[C]//2017 IEEE Energy Conversion Congress and Exposition,Cincinnati,OH,USA,2017:2831-2838.