Boiler DrumWater Level Control Based on Nonlinear Valve Characteristic Compensation

被引：0
|
作者：
Wei, Le [1 ]
Xu, Peichen [1 ]
机构：
[1] North China Elect Power Univ, Sch Control & Comp Engn, Baoding 071003, Peoples R China
来源：
PROCEEDINGS OF THE 30TH CHINESE CONTROL AND DECISION CONFERENCE (2018 CCDC) | 2018年
基金：
中国国家自然科学基金;
关键词：
Boiler drum water level; valve flow characteristics; curve fitting; STICTION;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Maintaining the normal boiler drum water level is a necessary condition for stable operation of the unit. General boiler drum water level fluctuations do not exceed 30mm similar to 50mm range. Valve flow characteristics refers to the relationship between the valve flow and the valve opening. When the drum opening is controlled by adjusting the opening of the control valve, the non-linearity of the valve can affect the control quality of the control system. In this paper, by using matlab2013a to build a simulation model, the control of boiler drum water level based on nonlinear valve characteristics compensation is studied. According to the flow characteristics of non-linear valve, the compensator based on polynomial curve fitting method is designed to compensate the valve opening command. Simulation results verify the feasibility of this method.
引用
收藏
页码：176 / 181
页数：6
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