燃料电池测试实验台的设计与研究

摘要

A novelty fuel cell experiment plat was design for 7 kW PEMFC stacks.For the stability and reliability of this experiment plat,SIEMENS SIMATIC S7-1200 PLC was used for main controller.In this paper,an ANN (artificial neural network) method was presented that improves the temperature control of hydrogen dew point.The actual working state about the PEMFC stack can be simulated in the experiment plat.The hydrogen inlet pressure,air flow,coolant flow were adjusted for load change.The monitoring software was designed using LABVIEW software and communicated with main controller through Modbus TCP protocol.%设计了一种新型的7 kW燃料电池测试平台.西门子SIMATIC S7-1200 PLC作为主控制器,对实验台进行安全稳定控制.对于氢气露点温度的控制,采用了神经网络控制算法.以多变量输入和多点加热的方式,很好地解决了露点温度困难和冷凝水问题.该实验平台具有模拟实际工况功能,可根据负载变化自动调整各个变量以达到合理的值.使用LABVIEW软件设计了界面友好,功能强大的上位机软件.上位机软件与主控制器通过Modbus TCP协议通讯.