一种非隔离改进二次型Boost高增益DC-DC变换器  

A Non-Isolated Improved Quadratic Boost High-Gain DC-DC Converter

作　　者：蒋威 张少如[1,2] 杜秀菊 张坤[1] 李妍学[1] JIANG Wei;ZHANG Shaoru;DU Xiuju;ZHANG Kun;LI Yanxue(Hebei Normal University,Shijiazhuang 050024,China;Industrial Energy Saving and Power Quality Control Collaborative Innovation Center,Anhui University,Hefei 230601,China)

机构地区：[1]河北师范大学,河北石家庄050024 [2]安徽大学工业节电与电能质量控制省级协同创新中心,安徽合肥230601

出　　处：《电机与控制应用》2021年第6期100-107,113,共9页Electric machines & control application

基　　金：河北省重点研发计划项目(18214302D,19212101D)。

摘　　要：为克服二次型Boost变换器升压能力受限、开关应力大等问题,提出一种非隔离改进二次型Boost高增益DC-DC变换器。所提出的变换器具有两种拓扑结构。对两种拓扑结构的工作原理进行了分析,从理论上推导了电路拓扑的电压增益和开关应力,并与现有变换器进行比较。提出的变换器在提高输出增益的同时,还能降低开关应力、提高转换效率。在MATLAB/Simulink中搭建仿真模型,仿真结果验证了理论计算的正确性。搭建了样机,通过理论推导和样机试验结果的对比分析,验证了该变换器设计方案的可行性。In order to overcome the problems of limited boost capacity and high switching stress of the quadratic boost converter,a non-isolated improved quadratic boost high-gain DC-DC converter is proposed,with two topological structures.The operation principles of the two topologies are analyzed,and the voltage gain and switching stress of the circuit topology are theoretically deduced and compared with existing converters.The proposed converter raises the output gain while reducing the switching stress and enhancing the efficiency.A simulation model is established in MATLAB/Simulink,and the simulation results verify the correctness of the theoretical calculations.Finally,an experimental prototype of the converter is built,and the feasibility of the converter design scheme is verified through the comparative analysis of theoretical deduction and experimental results.

关 键 词：DC-DC变换器 二次型Boost变换器 高增益 

分 类 号：TM464[电气工程—电器]