火力发电厂过热汽温控制模糊控制算法研究及软件开发  

Research on Fuzzy Control Algorithm and Software Development for the Superheated Steam Temperature Control of Coal-Fired Power Plant

作　　者：郑明欣 徐岩泉 

机构地区：[1]大唐(北京)水务工程技术有限公司,北京100097 [2]东营华泰精细化工有限责任公司,山东东营257000

出　　处：《自动化博览》2021年第9期70-75,共6页Automation Panorama1

摘　　要：随着我国电力工业的迅速发展,越来越多的高参数大容量机组陆续投产。从发展趋势看,600MW及以上等级的火电机组已成为大电网的主力机组,同时大容量机组的不断增加和电网调度自动化程度的日益提高,对火电厂机组的控制品质提出了更高的要求。主蒸汽温度是锅炉运行中的主要参数,它的高低直接影响锅炉安全稳定运行。锅炉主汽温控制有非线性和时变性,其大延时和大惯性的特点使其一直以来都成为火电厂自动控制的难点。本文中,针对大容量机组中过热蒸汽大延时和大惯性的特点设计一个串级模糊控制器,并对其进行仿真,研究其动态特性与鲁棒性。With China’s power industry developing rapidly, more and more large-capacity high-parameter units have put into production. From the development trend, above 600 MW unit will become a main unit of the power grids in the future. With the increasing of the large-capacity unit and the increasing degree of automation of the scheduling grid, it is a higher demand to the quality control of the thermal power plant unit. Supercritical generating units is the development of large-capacity generating units in China will also become the main force units. The main steam temperature is the main parameters in the boiler operation, which affect the safe and stable operation of boiler directly. The control of main steam temperature in the boiler is nonlinear and time variability. It is very difficult to control for the large delay and the inertia of its characteristics. In this paper, in view of the large inertia and large delay of superheated steam in the large capacity unit, we design a cascade fuzzy controller and carries on the simulation to research on its dynamic characteristics and robustness.

关 键 词：过热器 过热汽温 串级PID 串级模糊控制 

分 类 号：TP311.52[自动化与计算机技术—计算机软件与理论]