电机与控制应用2016，Vol.43Issue(10)：39-45,7.
基于优化PWM的中点电位平衡控制研究∗
Research on Neutral Point Potential Balance Control Based on Optimal PWM
摘要
Abstract
With the problem of neutral point potential fluctuation in three level inverter using the optimal PWM mode, a neutral point voltage control strategy was given, which was independent of the specific PWM mode, so that the neutral point potential could be moved in the opposite direction of the imbalance to stable neutral point voltage. The closed loop control system based on the stator flux trajectory tracking was combined with this new neutral point potential balancing strategy to make the effective suppression of capacitor voltage fluctuation and offset come true. Due to the research of the control method from the angle of space voltage vector, the optimization of PWM was widely applicable. In the end, the proposed control method was simulated and verified in detail which could eliminate the variation of neutral point potential effectively.关键词
优化PWM/中点电位波动/平衡控制/磁链轨迹跟踪Key words
optimal PWM/neutral point potential fluctuation/balancing strategy/flux trajectory tracking分类
信息技术与安全科学引用本文复制引用
林宏民,宋文祥,姜书豪..基于优化PWM的中点电位平衡控制研究∗[J].电机与控制应用,2016,43(10):39-45,7.基金项目
国家自然科学基金项目(51377102) （51377102）
