高电压技术2011，Vol.37Issue(1)：234-240,7.
利用矢量合成的三电平变流器SVPWM过调制技术
SVPWM Over-modulation Scheme of NPC Three-level Converter Using Vector Synthesization
摘要
Abstract
Common neutral-point voltage balance control technique can not decrease fluctuation of the neutral-point voltage but effectively eliminate offset of the neutral-point voltage. In order to decrease fluctuation of the neutral-point voltage, we present a novel output vector order of over-modulation using vectors synthesizing concept. The new method can decrease action time of the middle vector to 1/3 of the conventional over-modulation technology. Therefore, the method can reduce fluctuation of the neutral-point voltage to the full extent, realize the aim of over-modulation, and improve the performance of the system. Both single-mode and dual-mode over-modulation technology can use this method to synthesize output vector on hexagon. The simulation results reveal that the new method is valid and feasible.关键词
三电平变流器/电压空间矢量/过调制/矢量合成/中点电压偏移与波动/中矢量Key words
three-level converter/voltage space vector/over-modulation/vector synthesizing/offset and fluctuation of neutral-point voltage/middle-vector分类
信息技术与安全科学引用本文复制引用
王颢雄,马伟明,张狄林,肖飞,陈明亮,刘勇..利用矢量合成的三电平变流器SVPWM过调制技术[J].高电压技术,2011,37(1):234-240,7.基金项目
国家自然科学基金创新研究群体项目(50721063) （50721063）
国家自然科学基金(50737004). （50737004）
