A New Battery/UltraCapacitor Hybrid Energy Storage System for Electric, Hybrid, and Plug-In Hybrid Electric Vehicles
A New Battery/UltraCapacitor Hybrid Energy Storage System for Electric, Hybrid, and Plug-In Hybrid Electric Vehicles
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DOI：
10.1109/tpel.2011.2151206
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发表时间：
2012-01-01
影响因子：
6.7
通讯作者：
Emadi, Ali
中科院分区：
文献类型：
--
作者：
Cao, Jian;Emadi, Ali
本文提出了一种新的电池/超级电容器混合储能系统（HESS），用于电驱动车辆，包括电动汽车，混合动力电动汽车和插电式混合动力电动汽车。传统HESS设计使用较大的DC/DC转换器在超级电容器和电池/DC链路之间进行接口，以满足实时峰值功率需求，相比之下，所提出的设计使用小得多的DC/DC转换器作为受控能量泵工作，以在大多数城市驾驶条件下将超级电容器的电压保持在高于电池电压的值。当超级电容器电压降到电池电压以下时，电池将仅直接提供电力。因此，为电池创建了相对恒定的负载分布。此外，电池不用于直接从再生制动中获取能量;因此，电池与频繁充电隔离，这将增加电池的寿命。仿真和实验结果验证了所提出的系统。
In this paper, a new battery/ultracapacitor hybrid energy storage system (HESS) is proposed for electric drive vehicles including electric, hybrid electric, and plug-in hybrid electric vehicles. Compared to the conventional HESS design, which uses a larger dc/dc converter to interface between the ultracapacitor and the battery/dc link to satisfy the real-time peak power demands, the proposed design uses a much smaller dc/dc converter working as a controlled energy pump to maintain the voltage of the ultracapacitor at a value higher than the battery voltage for the most city driving conditions. The battery will only provide power directly when the ultracapacitor voltage drops below the battery voltage. Therefore, a relatively constant load profile is created for the battery. In addition, the battery is not used to directly harvest energy from the regenerative braking; thus, the battery is isolated from frequent charges, which will increase the life of the battery. Simulation and experimental results are presented to verify the proposed system.