Yamanaka K, Hava A M, Kirino H, et al. A novel neutral point potential stabilization technique using the information of output current polarities and voltage vector[J]. IEEE Transactions on Industry Applications, 2002, 38(6): 1572-1580.
Busquets Monge S, Alepuz S, Rocabert J, et al. Pulse width modulations for the comprehensive capacitor voltage balance of n-level three-leg diode-clamped converters[J]. IEEE Transactions on Power Electronics, 2009, 24(5): 1364-1375.
Chen Xinbing, He Ligao. Research on neutral point potential balance of three-level inverter based on fuzzy logic control strategy[J]. Transactions of China Electrotechnical Society, 2007, 22(10): 103- 108.
Patel P J, Patel R A, Patel V, et al. Implementation of self balancing space vector switching modulator for three-level inverter[C]. The Third International Conference on Industrial and Information Systems, Kharagpur, India, 2008: 1-6.
Song Wenxiang, Chen Guocheng, Ding Xiaoyu, et al. Research on neutral-point balancing control for three-level NPC inverter based on correlation between PWM and SVPWM[J]. Transactions of China Electrotechnical Society, 2005, 20(12): 53-58.
Alonso O, Marroyo L, Sanchis P, et al. Analysis of neutral-point voltage balancing problem in three-level neutral-point-clamped inverters with SVPWM modulation[C]. IEEE 28th Annual Conference of the Industrial Electronics Society, Sevilla, Spain, 2002: 920-925.
Qiang Song, Wenhua Liu, Qingguang Yu, et al. A neutral-point potential balancing algorithm for three-level NPC inverters using analytically injected zero-sequence voltage[C]. The Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition, Miami, USA, 2003: 228-233.
Celanovic N, Boroyevich D. A comprehensive study of neutral-point voltage balancing problem in three- level neutral-point-clamped voltage source PWM inverters[J]. IEEE Transactions on Power Electronics, 2000, 15(2): 242-249.