location: Current position: Home >> Scientific Research >> Paper Publications

基于LCC谐振变换器的高压直流电源设计

Hits:

Indexed by:期刊论文

Date of Publication:2012-04-20

Journal:电力电子技术

Included Journals:PKU、ISTIC、CSCD

Volume:46

Issue:4

Page Number:4-6,31

ISSN No.:1000-100X

Key Words:电源;高压直流;谐振变换器;软开关

Abstract:为提高高压直流电源效率,降低其体积和重量,这里介绍了一种基于LCC谐振变换器的高压直流电源设计方法.结合移相脉宽调制(PWM)和脉冲频率调制(PFM)方法,实现变换器在全负载范围内的软开关.首先分析了LCC电路的工作原理,并采用基波近似法进行数学建模,在此基础上,给出不同负载时频率、占空比与电压增益的关系曲线,为设计LCC谐振变换器提供理论依据.最后通过一台峰值电压35 kV,额定功率7 kW的电源样机验证了设计的正确性,系统采用闭环控制,提高了输出电压的精度.

Pre One:Application of low frequency dielectric spectroscopy to estimate lifetime of low-voltage EPR insulation

Next One:Thermal lifetime estimation of ethylene propylene rubber insulated shipboard power cable using artificial neural network