摘要
CLL谐振变换器谐振网络电路参数的设计关系到变换器性能的好坏。基于基波近似法,并结合特征阻抗分析方法,提出一种CLL谐振变换器谐振网络电路参数优化设计方案。详细分析了CLL谐振变换器的直流增益特性、谐振网络电流有效值和谐振电容电压应力,同时采用特征阻抗分析方法给出了实现开关管软开关的限制条件。实验结果验证了所提方案的正确性。
The performance of CLL resonant converter relates to the parameter design of its resonant network,for which,an optimal parameter design scheme is proposed based on the fundamental harmonic approximation method and the characteristic impedance analysis method. The DC gain characteristics of CLL resonant converter,the RMS current of resonant network and the voltage stress of resonant capacitor are analyzed,and the characteristic impedance method is applied to achieve the restrictive conditions for realizing the soft switching of power switch. The correctness of the proposed scheme is verified by the experimental results.
出处
《电力自动化设备》
EI
CSCD
北大核心
2015年第1期79-84,152,共7页
Electric Power Automation Equipment
基金
国家自然科学基金资助项目(51177140)
中央高校基本科研业务费专项资金资助项目(2682013ZT20)~~
关键词
CLL谐振变换器
谐振电感比
品质因数
环流损耗
工作特性
变换器
谐振电路
设计
CLL resonant converter
resonant inductance ratio
quality factor
circulating current loss
operational characteristics
electric converters
resonant circuits
design
