PIC18F2580单片机基于LabVIEW的燃料电池测控系统研究
（1）基于PIC18F2580单片机建立了燃料电池下位机测控系统，实现了对电堆参数的实时采集与控制。利用LabVIEW完成了PEMFC上位机测控系统和用户界面的设计。
（2）基于RS232串口通讯协议确立了上、下位机通信流程，实现了上下位机间的数据传输与控制。
（3）基于PID和模糊控制理论，分别设计了一种PID和模糊控制器，并将其应用于PEMFC仿真系统中，测试控制效果。
系统运行和仿真结果表明，本文设计的燃料电池测控系统能够完成对电池温度的控制，与PID控制器相比，模糊控制器能够将工作温度文持在最佳工作温度附近，达到了预期效果。25450
关键词 PEMFC LabVIEW 测控系统 模糊控制
毕业设计说明书外文摘要
Title Research on the Monitor and Control System of Fuel Cell Based on LabVIEW
Abstract
Proton exchange membrane fuel cell (PEMFC) produces electricity by the reaction of hydrogen ions and oxygen ions. Without any pollution, the product of the reaction is water and heat, which has broad application prospect. As one of the core technology of PEMFC, the control of fuel cell has important impact on the performance, power efficiency and safe operation of PEMFC. Therefore, based on PID and fuzzy control algorithm, this paper conducts a preliminary study on the control method of PEMFC. The main work is as follows:
Firstly, this paper develops the nether system with the microcomputer PIC18F2580, which uses single chip to acquire the stack parameters and to control the actuator. It also designs upper system by G programming language based on LabVIEW.
Secondly, it sets up the agreed communication protocol of the nether and upper system, which enables the data transmission and control between the upper and nether system.
Finally, based on the PID and fuzzy control algorithm, detailed designs of the PID and fuzzy controller are established and are applied to PEMFC control system.
Results of the simulation show that the design of the fuel cell monitor and control system is capable of commanding the cell temperature. In addition, compared with PID controller, fuzzy controller can maintain the operating temperature close to the best working temperature, which achieves the desired effect.
Keywords PEMFC LabVIEW Monitor and Control System Fuzzy Control
目 次
1 引言 1
1.1 本文研究背景及意义 1
1.2 PEMFC测控系统的研究现状 4
1.3 本文章节安排 7
2 PEMFC测控系统 8
2.1 PEMFC测控系统整体设计方案 8
2.2 PEMFC下位机控制系统 10
2.3 上位机系统设计 12
2.4 本章小结 14
3 LabVIEW通信方案的实现 15
3.1 下位机控制系统中通信模块简介 15
3.2 VISA功能模块实现串口通信 16
3.3 本章小结 17
4 PID及模糊控制算法研究 18
4.1 PID控制 18