基于动态特性机理分析的锅炉过热汽温自适应模糊控制系统研究

Study of Adaptive Fuzzy Control of Boiler Superheated Steam TemperatureBased on Dynamic Mechanism Analysis

本文在对某超临界600MW直流锅炉高温过热器动态特性进行机理分析的基础上，研究了锅炉主要工况车数（压力P、温度T和流量D）对过热汽温过程动态特性（或模型参数）的影响，提出了一种新颖的自适应模糊汽温控制系统。仿真结果表明，用这种方法建立的汽温控制系统具有较好的控制品质和较强的自适应能力。

This paper analyses the dynamic mechanism of the superheater of a supercritical once-through 600 MW boiler,and discusses the effects of main boiler-operating -condition parameters (Mass flow D Pressure P and Temperature T) on the dynamics (or model parameters). Based on this, a new adaptive fuzzy temperature control system is presented. Simulation results show that the control system has better performance and stronger adaptive capability.