Stepped control based supervisory predictive control algorithm for gas-steam combined cycle generating units

LI Suzhen; LIU Xiangjie; YUAN Gang

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Stepped control based supervisory predictive control algorithm for gas-steam combined cycle generating units

更新时间：2025-09-28

- Stepped control based supervisory predictive control algorithm for gas-steam combined cycle generating units
- Thermal Power Generation Vol. 43, Issue 6, Pages: 66-70(2014)
- 作者机构：
  
  1. 华北电力大学控制与计算机工程学院
  2. 三一重工娄底中兴液压件有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP13
- Published：2014
- 稿件说明：
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LI Suzhen, LIU Xiangjie, YUAN Gang. Stepped control based supervisory predictive control algorithm for gas-steam combined cycle generating units[J]. Thermal power generation, 2014, 43(6): 66-70.
DOI：

LI Suzhen, LIU Xiangjie, YUAN Gang. Stepped control based supervisory predictive control algorithm for gas-steam combined cycle generating units[J]. Thermal power generation, 2014, 43(6): 66-70. DOI：

摘要

针对燃气-蒸汽联合循环机组余热锅炉主蒸汽压力具有大惯性、纯滞后、强干扰等特点

将阶梯式控制策略引用到监督预测控制算法中。通过监督层动态优化目标函数

对给定的调节层提供最优的设定点

在每个采样周期

采用阶梯式控制策略

降低了在线计算量

减少了计算时间

提高了算法的快速性。仿真对比结果表明

该算法可行且控制效果良好

具有较好的经济性。

Abstract

As the main steam pressure of heat recovery steam generator(HRSG)in gas-steam combined cycle generating units is of large time constant

large pure time delay and strong disturbance

the hierarchical control strategy was adopted in supervisory predictive control.Through a dynamic optimal object function of optimization level

the optimal set-point for a given regulatory level was determined.The hierarchical control strategy was applied during each sampling period

which reduced the online computation burden and improved the algorithm implementation.The simulation comparison results prove the effectiveness and better control performance of the proposed algorithm

which has a great potential in thermal process.

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