现代电子技术Issue(4)：142-145,4.
串联谐振变换器断续模式下的建模和控制
Modeling and control of series resonant converter in discontinuous mode
摘要
Abstract
The equivalent circuit of series resonant DC⁃DC converter working in the discontinuous mode(DCM)was estab⁃lished. The small signal transfer function from control to output in discontinuous mode for series resonant converter was obtained by the injection⁃absorption current method. The correctness of the derived transfer function was verified by means of simulation of converter output wave and transfer function open⁃loop output wave. Its open⁃loop amplitude⁃versus⁃frequency characteristic curve and phase⁃frequency characteristic curvewere achieved with SISOTOOL in Matlab. Based on the above results,the com⁃pensation network of the converter control loop was optimized and designed. With the compensator,the system’s cross⁃over fre⁃quency is 4.52 kHz,amplitude margin is 53.3 dB and phase margin is 78.3°. The stability and transient response of the system were improved.关键词
串联谐振/断续模式/小信号分析/补偿器Key words
series resonance/discontinuous mode/small-signal analysis/compensator分类
信息技术与安全科学引用本文复制引用
彭丽,刘庆想,张政权,李伟..串联谐振变换器断续模式下的建模和控制[J].现代电子技术,2015,(4):142-145,4.基金项目
中央高校基本科研业务费专项资金项目 （）
