Load control of small steam turbine based on double fuzzy decoupling control

LI Minghui; YUN Weitao; ZHANG Xiaojie

doi:10.19666/j.rlfd.201704013

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Load control of small steam turbine based on double fuzzy decoupling control

更新时间：2025-09-28

- Load control of small steam turbine based on double fuzzy decoupling control
- Thermal Power Generation Vol. 47, Issue 1, Pages: 112-118(2018)
- 作者机构：
  
  1. 陕西科技大学机电工程学院
  2. 濮阳市自来水公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.201704013
  CLC： TK267
- Published：2018
- 稿件说明：
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LI Minghui, YUN Weitao, ZHANG Xiaojie. Load control of small steam turbine based on double fuzzy decoupling control[J]. Thermal power generation, 2018, 47(1): 112-118.
DOI：

LI Minghui, YUN Weitao, ZHANG Xiaojie. Load control of small steam turbine based on double fuzzy decoupling control[J]. Thermal power generation, 2018, 47(1): 112-118. DOI： 10.19666/j.rlfd.201704013.

摘要

为了解决汽轮机运行中机组电负荷与热负荷之间存在强耦合的问题

提出了一种基于规则而不依赖被控对象数学模型的模糊解耦控制算法。该算法依据模糊策略和解耦补偿思想

分别以模糊控制算法设计解耦控制器和主控制器构建双模糊解耦控制器

将汽轮机运行中的多变量系统转变为单变量系统

从而实现汽轮机电负荷、热负荷之间的解耦

提高控制系统的动态响应能力和鲁棒性。仿真结果表明:双模糊解耦控制方案使负荷之间的扰动大大降低

有效地解决了汽轮机控制中的热电耦合问题

具有较好的应用前景。

Abstract

In order to solve the problem of strong coupling between the electric load and the thermal load during turbine operation

this paper proposes a fuzzy decoupling control algorithm based on rules but not dependent on the mathematical model of controlled object. On the basis of fuzzy strategy and decoupling compensation

this algorithm designs the decoupling controller by the fuzzy control algorithm and constructs the double-fuzzy decoupling controller by the main controller. Then the multivariable system of the steam turbine operation is transformed into a single variable system

thereby realizing the thermo-electric load decoupling of the steam turbine and improving the dynamic response capability and robustness of the control system. The simulation results show that the double fuzzy decoupling control scheme can greatly reduce the load disturbance and effectively solve the problem of thermo-electric coupling during turbine operation.

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