燃料电池分散发电系统阳极部分的建模和控制  

Anode Side Modeling and Control of Fuel Cell Distributed Generating System

作　　者：张颖颖[1] 曹广益[1] 朱新坚[1] 

机构地区：[1]上海交通大学电信学院自动化系燃料电池研究所,上海200030

出　　处：《计算机仿真》2006年第2期204-207,共4页Computer Simulation

基　　金：国家"863"计划发展基金(2002AA517020)

摘　　要：燃料电池分散发电系统要求安全性、可靠性和持久性,系统控制十分重要,而用户的实时功率需求以及多设备多仪表多性能参数的特点使整个系统的实时控制变得复杂。该文主要介绍发电系统阳极部分的结构设计和控制实现方法。系统参数关系的强非线性要求控制必须以动态仿真模型为基础。在实时数据的基础上进行物质量上的反馈计算,能够使进入电堆阳极的氢气在系统运行过程中始终维持在理想的湿度水平。将二次型性能指标引入单神经元自适应PID控制,通过调节二级减压阀的气体流量,可以很好地维持电堆膜阳极侧压力始终与阴极侧压力保持理想的压力差水平。经仿真验证系统运行性能良好。Fuel cell distributed generator needs to have security, reliability and durability, so it＇s very important to design control system. But its characteristics of having multi - equipment, multi - measuring appliances, and multi - performance parameters as well as user＇s real-time power demands make system real - time control complex. This paper mainly introduces the design and control of anode supply part. Strong non - linear relations of system parameters requires that a dynamic simulation model must be made for designing the control system. By feedback computation process based on real - time data, the hydrogen supplied to anode could maintain the ideal humidity level throughout generating process. Bringing quadratic performance index in single neuron and constructing adaptive PID controller, by adjusting gas flow through the second pressure valve, membrane anode side in stack could maintain the ideal pressure difference level with cathode side. The simulation demonstrated good performance of the generating system.

关 键 词：燃料电池分散发电系统 系统控制 阳极 用户实时功率需求 二次型性能指标 

分 类 号：TM911.4[电气工程—电力电子与电力传动] TP273[自动化与计算机技术—检测技术与自动化装置]