期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
A neutral point potential drift control method for NPC three-level inverter
1
作者 Wu lin Qi Xin +2 位作者 Shi Xiangyang Su Tao Tao Yong 《High Technology Letters》 EI CAS 2021年第3期256-261,共6页
The output current harmonic distortion of a three-level inverter is less than the traditional twolevel inverter.The voltage stress of the semiconductor switch is low.A neutral point potential drift control method is p... The output current harmonic distortion of a three-level inverter is less than the traditional twolevel inverter.The voltage stress of the semiconductor switch is low.A neutral point potential drift control method is proposed to solve the problem of the neutral point potential drift of the three-level inverter.The interaction mechanism between the neutral point potential and the space voltage vector is presented.The small vector output by the inverter is found to be the root cause of the midpoint potential drift.It is found that the fluctuation of the midpoint potential could be suppressed by increasing the capacitance value of the inverter bus voltage stabilizing capacitor.Furthermore,it inhibits the fluctuation of the midpoint potential.The experimental results verify the efficiency and precision of the proposed method. 展开更多
关键词 neutral-point potential drift space voltage vector three-level inverter small vector output inverter bus voltage stabilizing
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部