[1] 李永东, 肖曦, 高跃. 大容量多电平变换器原理控制应用[M]. 北京:科学出版社, 2005.LI Yongdong, XIAO Xi, GAO Yue. Theory, Control and Application of High Capacity Multilevel Converters[M]. Beijing:Science Press, 2005. (in Chinese)[2] Wang J, Li Y, Han Y. Integrated modular motor drive design with GaN power FETs[J]. IEEE Transactions on Industry Applications, 2015, 51(4):3198-3207.[3] Toufann Chaudhuri, Alfred Rufer, Peter K, et al. Introducing the common cross connected stage (C3S) for the 5L ANPC multilevel inverter[C]//Power Electronics Specialists Conference (PESC). Rhodes, Greece:IEEE Press, 2008:167-173.[4] 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(6):129-135. WANG Kui, ZHENG Zedong, LI Yongdong. Multi purpose optimal control strategy of a five-level active neutral-point clamped inverter based on zero-sequence voltage injection[J]. Transactions of China Electrotechnical Society, 2014(6):129-135. (in Chinese)[5] 高跃, 李永东. 二极管钳位型五电平逆变器电容电压平衡域研究[J]. 电工技术学报, 2008, 23(1):77-83.GAO Yue, LI Yongdong. Voltage balance boundary of five-level diode clamped inverters[J]. Transactions of China Electrotechnical Society, 2008, 23(1):77-83. (in Chinese)[6] 郑泽东, 顾春阳, 李永东, 等. 采用多绕组高频变压器的新型多电平变换器拓扑及控制策略[J]. 电工技术学报, 2014(10):12-18.ZHENG Zedong, GU Chunyang, LI Yongdong. Topology and control method of a novel multi-level converter with multi-winding high-frequency transformer[J]. Transactions of China Electrotechnical Society, 2014(10):12-18. (in Chinese)[7] 王奎, 郑泽东, 李永东. 新型模块化多电平变换器电容电压波动规律及抑制方法[J]. 电工技术学报, 2011(05):8-14.WANG Kui, ZHENG Zedong, LI Yongdong. Voltage ripple principle and restrain method of floating capacitors in a new modular multilevel converter[J]. Transactions of China Electrotechnical Society, 2011(05):8-14. (in Chinese)[8] 张建坡, 赵成勇, 孙海峰, 等. 模块化多电平换流器改进拓扑结构及其应用[J]. 电工技术学报, 2014(8):173-179.ZHANG Jianpo, ZHAO Chengyong, SUN Haifeng, et al. Improved topology of modular multilevel converter and application[J]. Transactions of China Electrotechnical Society, 2014(8):173-179. (in Chinese)[9] Erickson R W, Al-Naseem O A. A new family of matrix converters[C]//Annual Conference of the IEEE Industrial Electronics Society (IECON). Denver, CO, USA:IEEE Press, 2001:1515-1520.[10] Angkititrakul S, Erickson R W. Control and implementation of a new modular matrix converter[C]//Applied Power Electronics Conference and Exposition (APEC). Anaheim, CA, USA:IEEE Press, 2004:813-819.[11] Angkititrakul S, Erickson R W. Capacitor voltage balancing control for a modular matrix converter[C]//Applied Power Electronics Conference and Exposition (APEC). Dallas, TX, USA:IEEE Press, 2006:7.[12] Miura Y, Mizutani T, Ito M, et al. A novel space vector control with capacitor voltage balancing for a multilevel modular matrix converter[C]//ECCE Asia. Melbourne, Australia:IEEE Press, 2013:442-448.[13] Oates C. A methodology for developing "Chainlink" converters[C]//Power Electronics and Applications (EPE). Barcelona, Spain:IEEE Press, 2009:1-10.[14] Oates C, Mondal G. DC circulating current for capacitor voltage balancing in modular multilevel matrix converter[C]//Power Electronics and Applications, European Conference (EPE). Birmingham, UK:IEEE Press, 2011:1-7.[15] Kammerer F, Kolb J, Braun M. A novel cascaded vector control scheme for the modular multilevel matrix converter[C]//Applied Power Electronics Conference and Exposition (APEC). Melbourne, Australia:IEEE Press, 2011:1097-1102.[16] Baruschka L, Mertens A. A new three-phase AC/AC modular multilevel converter with six branches in hexagonal configuration[J]. IEEE Transactions on Industry Applications, 2013, 49(3):1400-1410.[17] Li Yao, Xu Lie, Li Yongdong. Control of the cascaded H-bridge multilevel matrix converter[C]//International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM). Nuremberg, Germany:IEEE Press, 2014:1-7.[18] Li Yao, Xu Lie, Li Yongdong. A novel modulation with voltage balancing control for a modular matrix converter[C]//Electrical Machines and Systems (ICEMS). Hangzhou, China:IEEE Press, 2014:2483-2489.