摘要
简要分析串联三相桥式12脉波整流电路的基本原理,针对谐波对电网的影响以及提高功率因素,采用谐波注入三相桥式12脉波整流电路,实现24脉波无源多电平整流。基于matlab/simlink建立谐波注入12脉波整流电路的仿真模型。实验结果表明,谐波注入法明显降低交流侧电流的谐波含量和输入电流总畸变率(THD),同时改善功率因素,大大降低了谐波对电网的干扰,提高了电能的利用率。
The paper analyzes principle of series three-phase bridge 12 pulse rectifier circuit briefly. According to the influence of harmonic wave to power grid and improvement of power factor, harmonic wave is injected into the three-phase bridge 12 pulse rectifier circuit so that we realize twenty-four pukse passive multilevel rectifier. Besides, we build the model of twelve pulse rectification circuit with harmonic injection by maflab/simlink. The experimental result indicate that harmonic wave injection method can reduce harmonic content of AC side and total harmonic distortion （THD）, it is not only cut out interruption of harmonic wave with power grid, but also enhance the energy utilization.
出处
《电子设计工程》
2013年第2期100-103,107,共5页
Electronic Design Engineering
基金
国家自然科学基金项目(51207117)
