Fuel Cell Stack Dynamics Modeling Considering Load Variation

부하의 변화를 고려한 연료전지 스택 동특성 모델링

  • 고정민 (성균관대학교 정보통신공학부) ;
  • 김종수 (성균관대학교 정보통신공학부) ;
  • 최규영 (성균관대학교 정보통신공학부) ;
  • 강현수 (성균관대학교 정보통신공학부) ;
  • 이병국 (성균관대학교 정보통신공학부)
  • Published : 2009.01.01


In this paper, transient voltage response of Polmer Electrolyte Membrane Fuel Cell (PEMFC) stack is analyzed and voltage dynamic characteristic is modeled for optimal design of power conditioning system (PCS). According that the load is changed, the corresponding operating voltage of fuel cell stack is also varied with a certain deep and rising time due to the chemical and mechanical responses. This transient behavior can affect on the operation with respect of PI gain in controller, duty ratio, capacitor of capacitor and so on. So in this paper the detailed theoretical analysis of transient voltage dynamics is explained and the methodology of dynamic modeling is introduced. In addition, the validity and feasibility of the proposed dynamic model is verified by experimental results under various load conditions.


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