第一篇：多電平逆變器三段法空間矢量脈寬調制算法設計 (SVPWM 絕概要

第 21 期 鄭 宏等：多電平逆變器三段法空間矢量脈寬調制算法設計 175 elimination PWM bipolar waveforms: analysis and experimental verification[J].IEEE Transactions on Power Electronics, 2006, 21(2: 415－421.[13] 王小峰，何湘寧，鄧焰.載波交疊特性 PWM 方法在飛 跨電容多電平逆變器中的應用研究[J].中國電機工程 學報，2007，27(10：98－102.Wang Xiaofeng, He Xiangning, Deng Yan.PWM methods with carrier-overlapping characteristics in flying-capacitor multilevel inverters[J].Proceedings of the CSEE, 2007, 27(10: 98 － 102.(in Chinese with English abstract [14] Hongyan, Rongxiang Zhao, Yan Deng, et al.Novel carrierbased PWM methods for multilevel inverter[C]//The 29th Annual Conference of the IEEE, 2003: 2777－2782.[15] 王鴻雁，張超，王小峰，等.基于控制自由度組合的 多電平PWM 方法及其理論分析[J].中國電機工程學 報，2006，26(6：42－48.Wang Hongyan, Zhang Chao, Wang Xiaofeng, et al.Multilevel PWM methods based on control degrees of freedom combination and its theoretical analysis[J].Proceedings of the CSEE, 2006, 26(6: 42 － 48.(in Chinese with English abstract [16] Miao Changxin, Shi Liping, Wang Taixu, et al.Flying capacitor multilevel inverter with novel PWM method[J].Procedia

Earth and Planetary Science, 2009,1(1: 1554－ 1560.[17] 肖湘寧，劉昊.非正交坐標系多電平SVPWM 及其在 DVR 中的應用[J].電力電子技術，2004，38(6：20－ 23，30.Xiao Xiangning, Liu Tao.Multilevel SVPWM of nonorthogonal coordinates and its application in dynamic voltage regulator[J].Power Electronics, 2004, 38(6: 20 －23, 30.(in Chinese with English abstract [18] Sanbo Pan, Junmin Pan, Zuohua Tian.A shifted SVPWM method to control DC-link resonant inverters and its FPGA realization[J].IEEE Transactions on Industrial Electronics, 2012, 59(9: 3383－3391.[19] 王立喬，王長永，張仲超.組合變流器相移 SVM 技術 的研究[J].電力系統自動化，2002，26(18：36－40.Wang Liqiao, Wang Changyong, Zhang Zhongchao.Study of the multi-modular phase-shifted SVM converters[J].Automation of Electric Power System, 2002, 26(18: 36－40.(in Chinese with English abstract [20] 李建林，王立喬，劉兆燊，等.一種新型的組合變流 器錯時采樣空間矢量調制技術分析[J].中國電機工程 學報，2004，24(1：143－146.Li Jianlin, Wang Liqiao, Liu Zhaoshen.Analysis on a novel multi-modular converter with sample time staggered SVM technique[J].Proceedings of the CSEE, 2004, 24(1: 142 － 146.(in Chinese with English abstract [21] Wei-dong Jiang, Shao-wu Du, Liu-chen Chang, et al.Hybrid PWM strategy of SVPWM and VSVPWM for NPC three level voltage source inverter[J].IEEE Transactions on Power Electronics, 2010, 25(10: 2607－2619.[22] Xiangsheng Li, Zhiquan Deng, Zhida Chen, et al.Analysis and simplification of three-dimensional space vector PWM for three-phase four-leg inverters[J].IEEE Transactions on Industrial Electronics, 2011, 58(2: 450 －464.[23] Aneesh Mohamed A S, Anish Gopinath M R, Baiju.A simple space vector PWM generation scheme for any general n-level inverter[J].IEEE Transactions on Industrial Electronics, 2010, 56(5: 1649－1656.[24] Tengwei Yu, Ruixue Ni, Xudong Wang, et al.A simplified SVPWM algorithm and its application simulation on motor control[C]//Strategic Technology(IFOST, 2010: 156－160.[25] 鄭宏，黃健，孫玉坤，等.混合多電平逆變器拓撲及 調制方法[J].農業工程學報，2012，28(3：198－202.Zheng Hong, Huang Jian, Sun Yukun, et al.Topology and modulation of asymmetrical hybrid multilevel inverter[J].Transactions of the Chinese Society of

Agricultural Engineering(Transactions of the CSAE, 2012, 28(3: 198 － 202.(in Chinese with English abstract [26] Chen Xiyou, Xu Dianguo, Liu Fengchun, et al.A novel inverter-output passive filter for reducing both differnetial-and common-mode dv/dt at the motor terminals in PWM drive systems[J].IEEE Transactions on Industrial Electronics, 2007, 54(1: 419－426.[27] Amit Kumar Gupta, Ashwin M.Khambadkone.A general space vector PWM algorithm for multilevel inverters, including operation in overmodulation range[J].IEEE Transactions on Power Electronics, 2007, 22(2: 517－526.[28] Sergio Busquets Monge, Sergio Somavilla, Josep Bordonau, et al.Capacitor voltage balance for the neutral-point-clamped converter using the virtual space vector concept with optimized spectral performance[J].IEEE Transactions on Power Electronics, 2007, 22(4: 1128－1135.[29] 趙輝，李瑞.60° 坐標系下三電平逆變器 SVPWM 方法 的研究[J].中國電機工程學報，2008，28(24：39－45.Zhao Hui, Li Rui.Study on SVPWM method based on 60° coordinate system for three level inverter[J].Proceedings of the CSEE, 2008, 28(24: 39 － 45.(in Chinese with English abstract [30] Sanjay Lakshminarayanan, Kanchan R S, Tekwani P N, et al.Multilevel inverter with 12-sided polygonal voltage space vector locations for induction motor drive[J]．IEE Proceedings Electric Power Applications, 2006, 153(3: 411－419.176 農業工程學報 2012 年 Design of three-segment SVPWM algorithm for multilevel inverter Zheng Hong, Kuang Wenming, Zhao Wei, Sun Yukun(College of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China Abstract: A novel optimal switching systems algorithm, referred to as 3-segment space vector pulse width modulation(SVPWM, was developed to solve the problem that the traditional 7-segment SVPWM is limited largely in high-level electric inverters application.The optimal algorithm adopts a novel triangular dividing method and 60°coordinate system.The cause and minimization principle of additional switching were analyzed.The design steps of 3-segment switching sequence were given detailedly with some examples.In contrast to that of 7-segment SVPWM, the switching sequence design of the proposed 3-segment SVPWM is more flexible, and it could minimize the switching

frequency, decreasing switching loss.The proposed modulation strategy was simulated on a 5-level cascaded H-bridge inverter.Simulation results verified its validity and superiority.Key words: electric inverters, switching systems, switching frequency, space vector pulse width modulation, 60° coordinate system