A Fuel Cell Vehicle Power Distribution Strategy based on PEMFC Online Identification and ESS Equivalent Consumption Calculation

During the fuel cell vehicles operation, traditional optimization-based power distribution strategy mostly regards PEMFC as a characteristic-fixed DC power supply, which ignoring the problem that the characteristics of PEMFC will significantly change. And in traditional equivalent hydrogen consumption calculation of energy storage system, it ignores the PEMFC consumption nonlinear characteristics and the brake energy used to charge the energy storage system, resulting the calculation inaccuracy. In order to solve the problem above and optimize the overall energy consumption, this paper proposes an equivalent hydrogen consumption calculation method based on energy storage system historical operation data firstly, then proposes an adaptive power distribution strategy based on the PEMFC parameters online identification. Through the experiments, the effectiveness of the adaptive power distribution strategy is verified.