毕业设计说明书中文摘要在传统化石能源消耗殆尽，环境污染严重的背景下，开发高效环保的新能源技术成为各国关心的重点。燃料电池以其高效率、无污染和高可靠性等特点在新能源中脱颖而出。质子交换膜燃料电池以其可室温快速启动、工作温度低、寿命长和能量密度高等突出的优点，尤其适用于小型移动电源、车载电源等。86074

为了改善PEMFC发电系统的性能，必须要了解PEMFC工作过程中的影响因素。由于PEMFC发电系统相当复杂，故而建模时需要忽略一些次要变量以简化系统。在实际发电过程中，为了提高PEMFC发电系统的稳定性和可靠性，必须要加以控制系统辅助。因此，本文主要工作内容有：

1）简要介绍了能源的现状和燃料电池的优点，然后阐述了PEMFC的工作原理和PEMFC发动机系统的结构组成。

2）基于PEMFC的电化学理论，建立了PEMFC的数学模型。并基于其物理特性，在AMESim中进行了物理模型搭建，并通过运行仿真，分析了电解质厚度、气体扩散层厚度、反应气体流量、反应气体湿度和电池工作温度对PEMFC输出特性的影响。 

3）研究了模糊逻辑控制系统的结构，并利用模糊逻辑控制器对PID控制的三个参数进行了模糊整定，完成了自适应模糊PID控制器的设计，并利用三阶系统仿真分析证明了该控制器闭环系统具有良好的静态和动态性能。

4）基于PEMFC的物理模型，利用自适应模糊PID控制器改变阳极气体的流量和湿度，从而实现了对PEMFC单电池输出电压控制仿真研究。证明了自适应模糊PID控制可以在负载变化的一定范围内实现电压的相对稳定，保证了整个系统的稳定运行。

毕业论文关键词 质子交换膜燃料电池，动态模型，自适应模糊PID，联合仿真。

毕业设计说明书外文摘要

Title   Research  on the modeling and control simulation of the   vehicle proton exchange membrane fuel cell engine                                             

Abstract In the context of the traditional fossil energy consumption and serious environmental pollution, the development of new energy technologies, high efficiency and environmental protection，has become the focus of concern of all countries。 Fuel cells with high efficiency, no pollution and high reliability in the new energy to stand out。 The proton exchange membrane fuel cell has the advantages of quick start at room temperature, low working temperature, long service life and high energy density, and is especially suitable for small mobile power supply, vehicle power supply, etc。

In order to improve the performance of PEMFC power generation system, we must understand the influence factors in the process of PEMFC。 Due to the complexity of PEMFC power generation system, it is important to ignore some secondary variables to simplify the system。 It is necessary to control the system in order to improve the stability and reliability of the PEMFC power generation system。 Therefore, the main work of this paper is:

1）The energy status and the advantages of the fuel cell are introduced briefly, and then the working principle of PEMFC and the structure of the PEMFC engine system are described。

2）Based on the electrochemical theory of PEMFC, the mathematical model of PEMFC is established。 And based on its physical characteristics, physical model is established in AMESim, and by running the simulation, analysis of the thickness of the electrolyte and gas diffusion layer thickness, reactive gas flow rate, reactive gas humidity and the temperature of the cell on the output performance of PEMFC influence。

3）Studied the fuzzy logic control system, and the use of fuzzy logic in the PID control parameters tuning, completed the design of self-adaptive fuzzy PID controller, and the three order system simulation analysis proved that the control close-loop system has good static and dynamic performance。