电工技术学报  2015, Vol. 30 Issue (23): 32-41    DOI:
电力电子与电力传动 |
大型停车场电动汽车直流充电桩用低电应力ZCS-PWM Superbuck变换器
秦岭1,2, 孔笑笑1, 茅靖峰1, 谢少军2, 胡茂1
1.南通大学电气工程学院 南通 226019
2.南京航空航天大学自动化学院 南京 210016
ZCS-PWM Superbuck Converter with Reduced Electric Stress for Electric Vehicle DC Charging Spot in Large Parking Lot
Qin Ling1,2, Kong Xiaoxiao1, Mao Jingfeng1, Xie Shaojun2, Hu Mao1
1.School of Electrical Engineering Nantong University Nantong 226019 China
2.College of Automation Engineering Nanjing University of Aeronautics & Astronautics
Nanjing 210016 China
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摘要 提出一种新型大型停车场电动汽车充电设施——直流充电桩以及适用于该设施后级装置的低电应力ZCS-PWM Superbuck变换器。首先详细分析该变换器的工作机理,给出软开关实现的条件和功率管电应力;然后建立系统的CCM平均模型,得出稳态特性和动态特性;最后以320 V/50 A·h的磷酸铁锂动力电池为负载,通过一台1.8 kW/80 kHz样机进行实验验证。研究结果表明,该直流充电桩具有低谐波污染、高效率、长寿命、低成本以及易于批量建设等优点。
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秦岭
孔笑笑
茅靖峰
谢少军
胡茂
关键词 充电设施电动汽车电力电子变换器零电流软开关低电应力    
Abstract:This paper presents a novel electric vehicle (EV) charging facility—DC charging spot—in large parking lot and a zero-current-switching (ZCS) pulse-width-modulated (PWM) Superbuck converter with reduced electric stress suitable for the output stage.In the paper,the operation principles have been thoroughly analyzed and the condition of the soft switching and the electric stress of the power electronics devices are obtained.Then,the steady-state and dynamic character can be estimated by the state-space averaging approach.Finally,a charger prototype rated l.8 kW/80 kHz is constructed for a 320 V/50 A·h Lithium-iron-phosphate battery pack.The simulation and experimental results show that the proposed DC charging spot has the advantages of low harmonic pollution,high efficiency,long lifetime,low cost and ease of bulk construction.
Key wordsBattery charger    electric vehicle    power converters    zero-current-switching    reduced electric stress   
收稿日期: 2015-01-20      出版日期: 2015-12-18
PACS: TM315  
基金资助:国家自然科学基金(51207075、51477077)和江苏省自然科学基金(BK20141238)资助项目。
通讯作者: 孔笑笑 女,1991年生,硕士研究生,研究方向为功率电子变换及软开关技术。   
作者简介: 秦 岭 男,1977年生,博士研究生,副教授,研究方向为新能源发电及先进储能技术
引用本文:   
秦岭, 孔笑笑, 茅靖峰, 谢少军, 胡茂. 大型停车场电动汽车直流充电桩用低电应力ZCS-PWM Superbuck变换器[J]. 电工技术学报, 2015, 30(23): 32-41. Qin Ling, Kong Xiaoxiao, Mao Jingfeng, Xie Shaojun, Hu Mao. ZCS-PWM Superbuck Converter with Reduced Electric Stress for Electric Vehicle DC Charging Spot in Large Parking Lot. Transactions of China Electrotechnical Society, 2015, 30(23): 32-41.
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