摘要
在简化三电平SVPWM算法的基础上,研究了PWM整流器不同状态下各矢量对中点电位的影响,并深入分析了三电平整流器中性点平衡的原理,提出了一种通过判断整流器状态来控制中点电位的方法,给出了具体的执行过程,仿真与实验都验证了该方法在整流器四象限运行时能很好的控制中点电位。
Based on the simplified three-level SVPWM algorithm, the study on the impact of each vector for neutral point voltage of PWM Rectifier under different condition is given. The neutral-point balancing strategy of the neutral-point-clamped three-level rectifier is analyzed, and a mothed to control the midpoint voltage by judge the state of PWM Rectifier is proposed, which is verified by simulation and experiment.
出处
《自动化与仪器仪表》
2013年第2期24-26,共3页
Automation & Instrumentation
关键词
三电平
PWM整流器
中点电位控制
three-level
PWM rectifier
neutral point voltage control
