원문정보
초록
영어
The particular interest in Proton Exchange Membrane(PEM) fuel cell is based on the possibility to generate the clean and efficiency power. The safety and high operation issues of system are closely related to the control strategy used for fuel and oxidant supply. In PEM fuel cell the oxygen excess ratio expresses the proportion between oxygen supply and consumption and represents a decisive variable for the safety and normal performance. The main control object in this work is to maintain the oxygen excess ratio at the reference value which is obtained by simulation experiments. This work is focused on the design of the nonlinear generalized predictive control strategy manipulating the air flow rate in order to maintain the oxygen excess ratio. This proposed control strategy is based on GPC, and the sequence of control increments, input increment and output constraints solving is introduced to design proposed stair-like GPC method. The experiment results base on simulation platform of PEM FUEL CELL, is built in MATLAB environment, shows the better control effect comparing with fuzzy-PID switching method.
목차
1. Introduction
2. System Analysis
2.1. PEM Fuel Cell System
2.2. PEM Fuel Cell System
2.2. Control Object of Oxygen Excess Ratio
3. Control Strategy Design for Oxygen Excess Ratio
3.1. Prediction Model Identification
3.2. Nonlinear Generalized Predictive Control
4. System Analysis
5. Conclusions
References