共 40 条
A SeriesParallel Transformer-Based WPT System for 400-V and 800-V Electric Vehicles With Z1 or Z2 Class
被引:18
作者:
Liu, Xin
[1
]
Gao, Fei
[2
,3
]
Niu, Huanjun
[2
,3
]
Sun, Guodong
[4
]
Wang, Tianfeng
[2
,3
]
Wang, Hua
[5
]
机构:
[1] Univ Elect Sci & Technol China, Shenzhen Inst Adv Study, Shenzhen 518110, Peoples R China
[2] Shanghai Jiao Tong Univ, Key Lab Control Power Transmiss & Convers, Minist Educ, Shanghai 200240, Peoples R China
[3] Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200240, Peoples R China
[4] Shenzhen Polytech Univ, Inst Intelligence Sci & Engn, Shenzhen 518055, Peoples R China
[5] Shanghai Univ, Sch Mech Engn & Automat, Shanghai 200444, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Coils;
Batteries;
Couplings;
Rectifiers;
Transformers;
Topology;
Power generation;
Generalized architecture;
series-parallel transformer;
wireless power transfer (WPT);
DC-DC CONVERTERS;
HIGH-VOLTAGE-GAIN;
EFFICIENCY POINT TRACKING;
POWER TRANSFER SYSTEM;
TOPOLOGY DERIVATION;
CONVERSION RATIO;
RANGE;
IMPROVEMENT;
D O I:
10.1109/TPEL.2023.3319604
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
Due to the diversity of chassis heights, battery types, and battery capacities, wireless power transfer (WPT) systems for electric vehicles (EVs) have large variations in Z classes, battery voltages, and output power levels. Conventional solutions require different dc-dc converters, compensation circuits, and coupling coils for each specification, which results in weak compatibility, increased cost, and increased difficulty in development and product management. This article analyzes the influence of parameter variations on the EV WPT system mathematically. Then, a series-parallel transformer-based architecture is proposed for the high-power EV WPT system. The generalized power transfer function of the proposed system is derived. In addition, the design principle is demonstrated in detail, which can adapt to different Z classes, battery voltages, and power levels. A 20-kW LCC-LCC WPT prototype with a maximum dc-dc efficiency of 94.2% is built to demonstrate the feasibility of the proposed system. This article is accompanied by a video file demonstrating the 20-kW experiments.
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页码:1749 / 1761
页数:13
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