Research on IGCT-NPC/H Bridge Converter Commutation Process
Kong Dehong1 , Li Chongjian1 , Zhu Chunyi1,2 , Wang Chengsheng1,2 , Yang Qiongtao1,2
1. Automation Research and Design Institute of Metallurgical Industry Beijing 100070 China; 2. Hybrid Process Industry Automation System and Equipment Technology State Key Lab Beijing 100071 China
Abstract：The five-level NPC/H bridge converter is evolved from the three-level NPC one. It has the advantages of small output voltage harmonic content, high power capacity and being easy to implement modular design, which is applicable to the high-voltage high-power adjustable speed control system. In this paper, the topology characteristics of a single-phase NPC/H converter bridge is analyzed, the work principle, the commutation process and the mathematical model of the NPC/H converter are investigated, and the influence of the stray inductance on the commutation process and the over voltage of IGCT is analized. The above analysis is conformed by simulation results.
孔德宏, 李崇坚, 朱春毅, 王成胜, 杨琼涛. IGCT-NPC/H桥型变流器换流过程研究[J]. 电工技术学报, 2014, 29(6): 169-175.
Kong Dehong , Li Chongjian , Zhu Chunyi , Wang Chengsheng , Yang Qiongtao. Research on IGCT-NPC/H Bridge Converter Commutation Process. Transactions of China Electrotechnical Society, 2014, 29(6): 169-175.
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2014, Vol. 29 
