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A real-time energy optimization management for electric vehicles with hybrid energy storage system (HESS) is presented in this paper. The HESS is combined with lithium-ion battery and ultra-capacitor. Based on the quadratic optimization strategy, the power relationship of hybrid energy storage system and the battery power loss characteristics is analyzed. A quadratic performance index is established...
The battery imbalance which exists in the Lithium-ion battery system of electric vehicles, evidently decreases the total storage capacity and the whole life of batteries. To solve this problem, a modularized battery equalizer is proposed in this paper. Using multiple transformers which have two secondary windings, the modularization of battery equalizer and the energy transfer are achieved. In order...
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