摘要
针对目前级联多电平逆变器的主要缺点,即需要大量的独立直流源,提出了一种新型级联多电平逆变器,该逆变器通过提高直流源的利用率达到减少直流源数的目的。新型逆变器不仅结构简单,而且控制算法也简单有效。仿真结果证实了这种新型级联逆变器是可行的。
Aiming at the main disadvantages of existing cascade multilevel inverters, which is vast of independent DC source supply is demanded, a new cascade multilevel inverter is proposed. Through improvement of the utilization of DC supply, the DC source could be reduced. The new inverter features not only simple structure, but simple and efficient control algorithm. Simulation results indicate that the new cascade inverter is feasible.
出处
《机车电传动》
2007年第6期14-17,21,共5页
Electric Drive for Locomotives
关键词
逆变器
级联
无直流源逆变单元
电容钳位
二极管钳位
储能电容
inverter
cascade
inverter unit without DC source
capacitor-clamped
diode-clamped
energy-storage capacitor
