CAJ | 학술논문

质子交换膜燃料电池(PEMFC)的性能受温度,压力等众多外界因素以及本身结构的影响,具有较强的非线性,目前已建立的数学模型存在众多难以确定的参数.将1stOpt中的麦夸特法+通用全局优化法用于PEMFC的极化曲线模型,得到最优参数,避免了使用其他优化方法因为初始值选取不当对模型精确度造成的影响.通过对实验数据和加噪仿真数据的参数优化,结果表明这种方法建立的数学模型和实验数据之间能够达到很高的拟合精度,因而为PEMFC模型参数优化提出了一种高效实用的新方法.
질자교환막연료전지(PEMFC)적성능수온도,압력등음다외계인소이급본신결구적영향,구유교강적비선성,목전이건립적수학모형존재음다난이학정적삼수.장1stOpt중적맥과특법+통용전국우화법용우PEMFC적겁화곡선모형,득도최우삼수,피면료사용기타우화방법인위초시치선취불당대모형정학도조성적영향.통과대실험수거화가조방진수거적삼수우화,결과표명저충방법건립적수학모형화실험수거지간능구체도흔고적의합정도,인이위PEMFC모형삼수우화제출료일충고효실용적신방법.
Proton exchange membrane fuel cell (PEMFC) is strongly nonlinear, since it is affected by temperature, pressure and some external factors as well as its structure. Furthermore, in PEMFC mathematical model there are many parameters difficult to be optimized by traditional technology as least square. The Levenberg-Marquardt + Universal Global Optimization of 1stOpt was applied to optimize a set of parameters in the PEMFC polarization curve model, avoiding the troubles and imprecise modeling result from inappropriate initial value guesses. Through simulation and experiment, the results show that 1stOpt has an excellent modeling ability, which makes it an ideal, practical and efficient method in PEMFC model optimization.