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Wu B.,Xi'an Jiaotong University | Zhuo F.,Xi'an Jiaotong University | Long F.,Xi'an Jiaotong University | Gu W.,Xi'an Jiaotong University | And 2 more authors.
8th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2011-ECCE Asia | Year: 2011

This paper presents an application of solar energy battery super-capacitor hybrid energy storage system in solar electric vehicles. The key point is the proposed energy management control algorithm. The entire system consists of a solar panel, a boost converter, a battery, a super capacitor, a bi-directional DC/DC converter, and a brushless DC motor. This paper gives the details of the control strategy to cooperate the three energy sources or storage devices: solar panel, battery and super capacitor. A hysteretic control algorithm for battery charging by solar panel is given. A novel control method for bi-directional DC/DC is proposed to keep the battery discharging current within a certain limit and make full use of super capacitor. The switching transient between super-capacitor charging mode and discharging mode is also presented. Both simulation and experimental results demonstrate the effectiveness of the proposed strategy. © 2011 IEEE.

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