电气传动2012，Vol.42Issue(7)：41-45,5.
NPC三电平整流器中点电位控制方法的研究
Research of the Three-level NPC Rectifier Neutral Point Voltage Control Method
唐丽娜 1倪帅 1戴鹏 1徐立华1
作者信息
- 1. 中国矿业大学信息与电气工程学院,江苏徐州221008
- 折叠
摘要
Abstract
In order to solve the neutral point voltage imbalance of the three-level rectifier,NPC three-level rectifier as an example, analyzed the midpoint potential imbalance on the basis of the introduction of the main circuit. The mid-point potential control based on the SVPWM control strategy was described,and try to make the midpoint potential tending to balance through the rational choice of the positive or negative short vector. A control strategy based on conservation of charge was presented. As a principle of maintaining the charge into the mid-point zero within a sampling period, the vector of the midpoint can be controlled by controlling the positive and negative role in the short time. Simulation results verify that the proposed control plot has a good balancing effect.关键词
二极管钳位型三电平整流器/空间电压矢量脉宽调制/中点电位控制/电荷守恒Key words
three-level NPC rectifier/space vector pulse width modulation/ the control of neutral point voltage / charge conservation分类
信息技术与安全科学引用本文复制引用
唐丽娜,倪帅,戴鹏,徐立华..NPC三电平整流器中点电位控制方法的研究[J].电气传动,2012,42(7):41-45,5.
