基于隐式PIGPC的火电厂主汽温系统控制

doi:10.16182/j.issn1004731x.joss.201702029

系统仿真学报 ›› 2017, Vol. 29 ›› Issue (2): 445-452.doi: 10.16182/j.issn1004731x.joss.201702029

基于隐式PIGPC的火电厂主汽温系统控制

田中大, 李树江, 王艳红

沈阳工业大学信息科学与工程学院,沈阳 110870

收稿日期:2015-05-12 修回日期:2015-07-06 出版日期:2017-02-08 发布日期:2020-06-01
作者简介:田中大(1978-),男,辽宁沈阳,博士,讲师,研究方向为非线性系统预测控制;李树江(1966-),男,辽宁沈阳,博士,教授,研究方向为复杂工业过程建模与控制;王艳红(1967-),女,辽宁沈阳,博士,教授,研究方向为生产过程调度与优化。
基金资助:
辽宁省博士启动基金(20141070)

Thermal Power Plants Main Steam Temperature System Control Based on Implicit PIGPC

Tian Zhongda, Li Shujiang, Wang Yanhong

School of Information Science and Engineering, Shenyang University of Technology, Shenyang 110870, China

Received:2015-05-12 Revised:2015-07-06 Online:2017-02-08 Published:2020-06-01

摘要/Abstract

摘要： 针对火电厂主汽温控制系统具有的大惯性、大时滞等特性,提出一种基于隐式PIGPC的控制策略。在隐式GPC(generalized predictive control)的基础上进行改进,提出具有PI结构的隐式GPC算法(隐式PIGPC)。隐式PIGPC结合了PI控制与隐式GPC的优点,即把PI的反馈结构与GPC的预测功能结合起来,通过采用新的目标函数,获得具有PI结构的预测控制算法,可以改善控制器性能。同时对算法的稳定性进行了分析。仿真研究结果表明提出的方法在响应时间、超调、抗干扰等方面有着很好的控制效果。

关键词: 火电厂, 主汽温系统, 广义预测控制, PI控制, 隐式PIGPC

Abstract: Aiming at the large inertial time-delay characteristic of main steam temperature control system on the thermal power plants, a control method based on Implicit PI-based generalized predictive controller (GPC) was proposed. The implicit PIGPC algorithm with PI structure was proposed based on implicit GPC, implicit PI-based GPC combined the advantages of PI control and implicit GPC, the feedback structure of PI and prediction function of GPC was combined. The predictive control algorithm with PI structure was obtained through a new objective function, the performance of controller was improved. At the same time, the stability of the compensation algorithm was analyzed. Simulation results show that the proposed method has a good control effect in the response time, overshoot, anti-interference and other indicators.

Key words: thermal power plants, main steam temperature system, generalized predictive control, PI control, implicit PIGPC

中图分类号:

TP273

田中大, 李树江, 王艳红. 基于隐式PIGPC的火电厂主汽温系统控制[J]. 系统仿真学报, 2017, 29(2): 445-452.

Tian Zhongda, Li Shujiang, Wang Yanhong. Thermal Power Plants Main Steam Temperature System Control Based on Implicit PIGPC[J]. Journal of System Simulation, 2017, 29(2): 445-452.

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基于隐式PIGPC的火电厂主汽温系统控制

Thermal Power Plants Main Steam Temperature System Control Based on Implicit PIGPC

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