球磨机制粉系统建模及广义预测控制的研究与应用

doi:10.16182/j.cnki.joss.2015.06.026

系统仿真学报 ›› 2015, Vol. 27 ›› Issue (6): 1329-1337.doi: 10.16182/j.cnki.joss.2015.06.026

• 信息、控制、决策与仿真 • 上一篇下一篇

球磨机制粉系统建模及广义预测控制的研究与应用

孙灵芳, 孙晶淼

东北电力大学自动化工程学院,吉林 132012

收稿日期:2014-07-11 修回日期:2014-09-18 出版日期:2015-06-08 发布日期:2021-01-15
作者简介:孙灵芳(1970-),男,黑龙江省讷河市,博士,教授,研究方向为智能测控技术; 孙晶淼(1989-),女,辽宁省锦州市,满族,硕士,研究方向为热工过程先进控制研究。

Study of Improved Generalized Predictive Control in Ball Mill Application

Sun Lingfang, Sun Jingmiao

School Of Automation Engineering,Northeast Dianli University, Jilin 132012, China

Received:2014-07-11 Revised:2014-09-18 Online:2015-06-08 Published:2021-01-15

摘要/Abstract

摘要： 双进双出球磨机制粉系统作为火电厂里重要的发电设备,具有非线性、多变量、强耦合、大时滞的特点。从机理法出发,建立球磨机的机理数学模型,并在机理数学模型的输入变量加入一定量的扰动,给出阶跃扰动测试,建立出球磨机系统的传递函数模型。结合作为工业过程控制中应用最广泛的基本控制律--PID控制,在一般广义预测控制算法的基础上,将具有比例积分微分结构的广义预测控制算法(PID-GPC)首次应用到球磨机上,通过对河北龙山某电厂300MW大型单元机组负压运行球磨机制粉系统的仿真表明,该算法较-般前馈解耦PID控制具有更好的鲁棒性,更宜于工业应用。

关键词: 球磨机, 广义预测控制, 自动控制, 控制方法

Abstract: Direct-fired pulverizing system with double inlets and outlets is regarded as important generating equipment in power plant, which has characteristics of nonlinear, multivariable, strong coupling and time-varying. Started from the mechanism of law, the mechanism mathematical model of the ball mill was established and a certain amount of disturbance transfer ftinction model was added in a mathematical model of the mechanism of input variables to give step disturbance tests to establish the ball mill system. Combining the most widely used basic control--PID control as industrial process control, and on the basis of general generalized predictive control algorithm, the generalized predictive control algorithm with a proportional-integral-derivative structure (PID-GPC) was applied to the ball mill. Through a 300 MW power unit negative run large ball mill pulverizing system simulation in Longshan, Hebei, China, it is shown that the algorithm has better robustness than general feed-forward decoupling PID control, and it^Js better to be applied in industry.

Key words: ball mill, generalized predictive control, automatic control, control method

中图分类号:

TP391.9

孙灵芳, 孙晶淼. 球磨机制粉系统建模及广义预测控制的研究与应用[J]. 系统仿真学报, 2015, 27(6): 1329-1337.

Sun Lingfang, Sun Jingmiao. Study of Improved Generalized Predictive Control in Ball Mill Application[J]. Journal of System Simulation, 2015, 27(6): 1329-1337.

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球磨机制粉系统建模及广义预测控制的研究与应用

Study of Improved Generalized Predictive Control in Ball Mill Application

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