有源箝位反激变换器能量传输模式及输出纹波电压分析
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摘要：
为了给有源箝位反激变换器的设计和制作提供理论指导,对其能量传输模式进行深入研究,根据流过副边整流二极管电流的连续与断续状态,将有源箝位反激变换器划分为连续导电模式(CCM)和不连续导电模式(DCM),发现其工作于CCM时,存在2种能量传输模式;工作于DCM时,存在1种能量传输模式.推导出各模式的输出纹波电压解析式并进行对比分析,指出变换器工作于DCM模式时,输出纹波电压随变压器电感和箝位电容的增大而减小;工作于CCM模式时,输出纹波电压与变压器电感无关,随箝位电容的增大而减小.仿真和实验验证了理论分析的正确性.
The energy transmission modes of the active clamp flyback converter were deeply studied to provide theoretical guidance for its design and manufacture.The converter is divided into continuous conduction mode(CCM)and discontinuous conduction mode(DCM)based on the continuous and discontinuous state of the current flowing through the secondary side rectifier diode.It is found that,when it works in CCM,there are two energy transmission modes;when it works in DCM,there is one energy transmission mode.The analytical formula of output ripple voltage of each mode is derived,compared and analyzed.When the converter works in DCM mode,the output ripple voltage decreases with the increase of transformer inductance and clamping capacitance;when working in CCM mode,the output ripple voltage decreases.The ripple voltage has nothing to do with the transformer inductance,and decreases with the increase of the clamping capacitance.Simulation and experiment verify the correctness of the theoretical analysis.
作者：
赵永秀 蔡培军 李明庚 王骑
Zhao Yongxiu;Cai Peijun;Li Minggeng;Wang Qi(School of Electircal and Control Engineering,Xi'an University of Science and Technology,Xi'an 710054,China)
机构地区：
西安科技大学电气与控制工程学院
出处：
《betway官方app 学报：自然科学版》 CAS 北大核心 2022年第3期119-125,共7页
Journal of Henan Normal University(Natural Science Edition)
基金：
国家自然科学基金(51277149 51777167)。
关键词：
有源箝位反激 能量传输模式 输出纹波电压
active clamp flyback energy transfer mode output ripple voltage
分类号：
TM46 [电气工程—电器]
