A Multi-objective Optimal Charging Strategy Based on Electro-thermal Coupling Model

This paper presents a multi-objective optimized charging strategy based on an electro-thermal coupling model. The charging current affects charging time, charging capacity and temperature rise and needs to be well balanced and carefully optimized. The charging strategy proposed in this paper takes three factors mentioned above into account and performs a multi-objective optimization to obtain the best combination of charging currents by means of a genetic algorithm. By varying the weighting parameters, a certain objective is targeted or optimized in a balanced manner. Compared to the conventional constant current charging strategy, this charging strategy has the advantages of shorter charging time, higher charging capacity, and lower maximum temperature rise.