一种改进高增益二次型Boost变换器
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摘要：
为了获得较高的电压增益,减小输出电压纹波及降低开关器件的电压应力,在传统二次型Boost变换器的基础上,结合电压倍增单元和低通滤波器,提出了一种高增益改进二次型Boost变换器.分析了该变换器在连续电感电流模式下的工作原理和稳态性能.对所提改进二次型Boost变换器和现有的Boost变换器进行了比较,通过对比表明所提改进二次型变换器Boost具较高的电压增益,在同等输出电压的情况下降低了开关器件电压应力和减小了输出电压纹波,且具有连续输入电流和输出电流.最后,对改进二次型Boost变换器进行了仿真建模,实验波形分析验证其理论分析的正确性及提高电压增益、降低开关器件电压应力及减小输出纹波电压的可行性.
In order to obtain higher voltage gain,reduce output voltage ripple and voltage stress of switching devices,an improved quadratic boost converter with high gain is proposed based on traditional quadratic boost converter,combining voltage multiplication unit and low-pass filter.The operation principle and steady-state performance of the converter in continuous inductor current mode are analyzed.The comparison between the proposed boost converter and the existing boost converter shows that the former has higher voltage gain,lower switching device voltage stress and output voltage ripple under the same output voltage,and has continuous input current and output current.Finally,the simulation model of the improved quadratic boost converter is built,and the experimental waveform analysis verifies the correctness of the theoretical analysis and the feasibility of improving the voltage gain,reducing the voltage stress of the switching device,and the output ripple voltage.
作者：
朱高中 刘树林 王成
Zhu Gaozhong;Liu Shulin;Wang Cheng(School of Electircal and Control Engineering,Xi'an University of Science&Technology,Xi'an 710054,China;School of Physics and Electrical Engineering,Weinan Normal University,Weinan 714099,China)
机构地区：
西安科技大学电气与控制工程学院 渭南师范学院物理与电气工程学院
出处：
《betway官方app 学报：自然科学版》 CAS 北大核心 2021年第5期46-52,共7页
Journal of Henan Normal University(Natural Science Edition)
基金：
国家自然科学基金(51777167,51604217) 教育部产学合作协同育人项目(201901178002) 2020国家级大学生创新创业训练项目(S202010723024).
关键词：
高压增益 二次Boost变换器 低通滤波器 电压倍增单元
high voltage gain quadratic boost converter low pass filter voltage multiplication unit
分类号：
TM46 [电气工程—电器]
