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As off-board battery charger for electric vehicles (EVs) has little limitations of weight, volume and power capacity, this paper introduces a new architecture for off-board battery charger. It is based on multi-pulse flexible-topology thyristor rectifier, which operates in series or parallel mode via flexible-topology switching, according to battery voltage. By flexible-topology operation, the proposed...
Series-connected lithium batteries can be charged in pack mode that is most widely used in lithium battery application field. But pack charging mode will lead to cell unbalanced charging because of cell differences among series-connected batteries in electrochemical characteristic. On the other hand, the cell charging mode can avoid the imbalance problem by charging each cell independently as a result...
The state of charge online estimation of EV/HEV lithium battery with high accuracy is very important, Since it can be used to prolong the battery lifetime and improve its performances. Traditional SOC estimation algorithms have show their drawbacks apparently, so the Adaptive Wavelet Neural Network(AWNN) based SOC estimation model is presented. By using adaptive algorithm to train the model, the accurate...
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