电源学报Issue(5)：24-31,8.
基于模糊逻辑的平衡三电平NPC逆变器中点电位的SVPWM调制方法
A Novel Neutral-point Potential Balancing Technique Based on Fuzzy Logic for Three-level NPC SVPWM Inverter
谢桢 1肖飞 1袁雷 1王瑞西 1毕超1
作者信息
- 1. 海军工程大学舰船综合电力技术国防科技重点实验室．湖北武汉430033
- 折叠
摘要
Abstract
Considering the application of the three-level neutral point clamped (NPC) inverter in high voltage and large power system, the symmetrical seven-stage SVPWM modulation was expatiated. The neutral-point voltage would be unbalanced under the SVPWM control, the reason of this problem and the ability to control the unbalance by controlling the redundant voltage small vectors were analyzed. The impact of the negative sequence current to neutral-point voltage oscillation was calculated. In order to solve this problem, a SVPWM method based on fuzzy logic had been put forward to control the neutral-point voltage. The correctness of the method has been validated by simulation.关键词
三电平NPC逆变器/模糊逻辑/SVPWM/中点电位Key words
three-level NPC inverter/fuzzy logic/SVPWM/neutral-point voltage分类
信息技术与安全科学引用本文复制引用
谢桢,肖飞,袁雷,王瑞西,毕超..基于模糊逻辑的平衡三电平NPC逆变器中点电位的SVPWM调制方法[J].电源学报,2012,(5):24-31,8.
