Abstract

EMI (electromagnetic interference) noises and power split strategy are two important topics when integrating a PEM fuel cell/battery hybrid power-train. Principles and methods to eliminate the EMI noises are firstly introduced. Generally speaking, the EMI noises can be reduced by applying electrical grounding, designing a time-triggered communication system and using some filter technologies in electric control units. A power split strategy on the basis of a prediction algorithm is then proposed aiming at prolonging working life time of fuel cell stacks. With this strategy, the fuel cell stacks work in a quasi-steady state and the battery is kept charge-sustaining. Experimental results show the effectiveness of the strategy.

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