一种适用于电动汽车的无电解电容单级双向AC/DC变换器  

A Single-Stage Bi-Directional AC-DC Converter with no Electrolytic Capacitor for EV

作　　者：王文龙[1,3] 陈立辉 侯晨光[1,3] WANG Wenlong;CHEN Lihui;Hou Chenguang(Department of Automotive Engineering,Xingtai Vocational and Technical College,Xingtai Hebei 054000,China;College of Career Technology,Hebei Normal University,Shijiazhuang Hebei 050024,China;Hebei Special Vehicle Modification Technology Innovation Center,Xingtai Hebei 054000,China)

机构地区：[1]邢台职业技术学院汽车工程系,河北邢台054000 [2]河北师范大学职业技术学院,河北石家庄050024 [3]河北省特种车辆改装技术创新中心,河北邢台054000

出　　处：《电子器件》2023年第4期999-1004,共6页Chinese Journal of Electron Devices

基　　金：2022年度河北省高等学校科学研究项目人文-重点(SD2022009);河北省高等教育教学改革研究与实践项目(2021GJJG131)。

摘　　要：针对电动汽车充电电源额外热量产生影响电池使用寿命的问题,提出一种无电解电容隔离式单级双向AC/DC变换器。该变换器能有效阻止低频功率纹波注入电池单元,减少了额外热量的产生;同时电解电容的消除也大大提高了系统的可靠性。控制策略方面,提出的一种四相控制器,不仅能使所有开关管实现零电压开关(Zero Voltage Switch,ZVS),并在导通损耗进行了性能优化。最后,通过PSIM仿真软件和实验样机,验证了理论分析的正确性和可行性。Aiming at the problem that extra heat generated by the electric vehicle charging power supply affects the battery life,a single-stage bidirectional AC/DC converter without electrolytic capacitor isolation is proposed.The converter can effectively prevent low-frequen-cy power ripple from being injected into the battery cell,reducing the generation of extra heat;at the same time,the elimination of electro-lytic capacitors also greatly improves the reliability of the system.In terms of control strategy,the proposed four-phase controller not only enables all switching tubes to achieve zero voltage switching(ZVS),but also optimizes the performance of conduction loss.Finally,through PSIM simulation software and experimental prototype,the correctness and feasibility of the theoretical analysis are verified.

关 键 词：电动汽车充电 无电解电容 双向AC/DC变换器 ZVS 

分 类 号：TM464[电气工程—电器]