摘要
针对三电平DC_DC变换器开关数目多 ,开关模态复杂 ,难以用传统建模方法对之进行统一建模 ,用脉冲波形积分法对三电平DC_DC变换器进行建模分析 ,得到了有效的统一模型 .文中以Buck三电平DC_DC变换器为例 ,详细阐明了统一建模原理 ,并给出了三电平DC_DC变换器的统一建模方法 .仿真分析与实验验证了理论分析的结果 。
The three-level DC-DC converter is known to have t oo many power switch es and complex ope^ration modes, and it is difficult to obtain a unified model b y using conventional modeling approaches. In view of such disadvantages, a novel unified modeling approach, the pulse waveform integral approach, was used for th e first time to analyze the converter. With the unified modeling of Buck three-l evel DC-DC converter as an example, the modeling principle was investigated in d etail. Also the unified modeling of other three-level DC-DC converters can be de duced. The simulation analysis and experiment results indicate that the pulse wa veform integral approach to the unified modeling of three-level DC-DC converters is both effective and efficient.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2004年第2期37-41,45,共6页
Journal of South China University of Technology(Natural Science Edition)
关键词
三电平变换器
统一建模
脉冲波形积分法
周期性脉冲函数
three-level converter
unified modeling
pulse wave form integral approach
periodic pulse function
