The PI-DMC algorithm based CFB temperature control system

LIU Changliang; LI Feifei

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The PI-DMC algorithm based CFB temperature control system

更新时间：2025-09-28

- The PI-DMC algorithm based CFB temperature control system
- Thermal Power Generation Vol. 42, Issue 11, Pages: 116-120(2013)
- 作者机构：
  
  1. 华北电力大学新能源电力系统国家重点实验室
  2. 华北电力大学控制与计算机工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK229.66;TK223.7
- Published：2013
- 稿件说明：
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LIU Changliang, LI Feifei. The PI-DMC algorithm based CFB temperature control system[J]. Thermal power generation, 2013, 42(11): 116-120.
DOI：

LIU Changliang, LI Feifei. The PI-DMC algorithm based CFB temperature control system[J]. Thermal power generation, 2013, 42(11): 116-120. DOI：

摘要

针对循环流化床(CFB)床温的大惯性和时变性特点

提出了一种PI-DMC算法。PI控制器根据实际输出与预测输出的偏差修正动态矩阵控制(DMC)控制器的输出

以减小实际系统与预测模型间的输出偏差

从而降低模型与实际系统的失配以及干扰对控制系统的影响

提高系统的鲁棒性及抗干扰能力。仿真结果表明

该控制方法能够很好地适应CFB床温的动态特性变化

且控制品质优于常规PID和传统DMC控制。

Abstract

Against the large inertia and time-varying of bed temperature of the circulating fluidized bed(CFB)boilers

a PI-DMC algorithm was proposed.According to deviation between the actual output and predicted output

the PI controller corrected the output of dynamic matrix controller(DMC)to decrease the deviation of output between the actual system and the prediction model.Thus the effect of model mismatch and interference on control system was reduced

and the robustness and the anti-interference performance of the system were improved.The simulation results demonstrated that

this control method could adapt to the dynamic characteristics change of the bed temperature well

and the control quality was better than that of the conventional PID and DMC controller.

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