A Power Distribution Control Strategy of Hybrid Energy Storage System in Hybrid Electric Vehicles
Wang Qi1, Sun Yukun2, Luo Yinsheng1
1. School of Electrical & Information Engineering Jiangsu University of TechnologyChangzhou 213001 China; 2. School of Electric Power Engineering Nanjing University of Technology Nanjing 211167 China
Abstract：This paper studied a power distribution control strategy of hybrid energy storage system (HESS) in hybrid electric vehicles (HEV). In HESS, battery is as a main power source and an ultra-capacitor (UC) is as an auxiliary power source. Regarding the power stage of energy conversion, a boost converter is connected with the main source and a buck-boost converter is connected with the auxiliary source. The objectives of the control strategy are as follows: ① stabilize DC bus voltage regulations, ② perfectly trace the current reference of super capacitor, ③ achieve asymptotic stability of the closed loop system. The HESS and control strategy are modelled and simulated under the Matlab Advisor simulation environment, and a prototype of HESS is also built. The results show that the designed control strategy meets all the objectives. It can make full use of the advantages of battery and UC.
王琪, 孙玉坤, 罗印升. 混合动力电动汽车的复合电源功率分配控制策略[J]. 电工技术学报, 2017, 32(18): 143-151.
Wang Qi, Sun Yukun, Luo Yinsheng. A Power Distribution Control Strategy of Hybrid Energy Storage System in Hybrid Electric Vehicles. Transactions of China Electrotechnical Society, 2017, 32(18): 143-151.
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