Desired dynamic equation control based on maximum-sensitivity-constraint and its application in thermal power units

SHI Gengjin; WU Zhenlong

doi:10.19666/j.rlfd.202409223

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Desired dynamic equation control based on maximum-sensitivity-constraint and its application in thermal power units

更新时间：2025-09-26

- Desired dynamic equation control based on maximum-sensitivity-constraint and its application in thermal power units
- Thermal Power Generation Vol. 54, Issue 5, Pages: 112-121(2025)
- 作者机构：
  
  1. 中国电力国际发展有限公司
  2. 郑州大学电气与信息工程学院
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202409223
  CLC：
- Published：2025
- 稿件说明：
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SHI Gengjin, WU Zhenlong. Desired dynamic equation control based on maximum-sensitivity-constraint and its application in thermal power units[J]. Thermal power generation, 2025, 54(5): 112-121.
DOI：

SHI Gengjin, WU Zhenlong. Desired dynamic equation control based on maximum-sensitivity-constraint and its application in thermal power units[J]. Thermal power generation, 2025, 54(5): 112-121. DOI： 10.19666/j.rlfd.202409223.

摘要

随着可再生能源系统的并网，越来越多的火电机组需要参与深度调峰并快速响应自动发电控制指令，这要求火电机组的控制器既需要具有良好的动态性能也需要有较强的鲁棒性。然而，目前广泛应用于火电机组的比例-积分（proportional-integral

PI）控制器整定往往以动态性能为重，缺乏鲁棒性。为此，提出了一种基于最大灵敏度约束的预期动态PI控制策略，旨在获得良好动态性能的同时兼顾控制器的鲁棒性。仿真结果以及磨煤机热一次风量控制试验结果表明，所提出的控制策略具有较好的抗扰性能与较强的鲁棒性，能够有效应对机组大范围变工况带来的不确定性。

Abstract

With the grid-connection of renewable energy systems

more coal-fired units are required to participate in deep-peak-shaving and quickly respond to the automatic generation control command. Therefore

the controllers of coal-fired units should not only have satisfactory dynamic performance but also have strong robustness. However

the tuning of proportional-integral(PI) controllers which are widely applied to coal-fire units usually takes the dynamic performance into account and robustness in the application of PI controller parameter tuning is lack. Thus

the maximum-sensitivity-constrained desired dynamic equation(DDE) PI is proposed to obtain good dynamic performance and strong robustness. Simulations and field tests on the hot primary air system of the coal pulverizer indicate that

the proposed control method has better disturbance rejection performance and stronger robustness

which can effectively handle with uncertainties caused by the wide load variation of the unit.

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