| 引用本文: | 杨苹,许礼尉.聚焦式模糊变结构控制及其在主汽温控制中的应用[J].控制理论与应用,2007,24(1):137~142.[点击复制] |
| YANG Ping, XU Li-wei.Focusing variable structure fuzzy controland its application to steam temperature control of a boiler[J].Control Theory and Technology,2007,24(1):137~142.[点击复制] |
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| 聚焦式模糊变结构控制及其在主汽温控制中的应用 |
| Focusing variable structure fuzzy controland its application to steam temperature control of a boiler |
| 摘要点击 936 全文点击 1009 投稿时间：2005-06-15 修订日期：2006-08-30 |
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| DOI编号 |
| 2007,24(1):137-142 |
| 中文关键词 模糊控制 变结构 聚焦 主汽温控制 |
| 英文关键词 fuzzy control variable
structure focusing steam temperature control |
| 基金项目 |
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| 中文摘要 |
| 针对具有纯滞后、大惯性、参数漂移大的非线性复杂系统,
本文提出一种聚焦式模糊变结构控制算法, 使系统在多种干扰下具
有较强鲁棒性的同时, 具有较快的响应速度. 控制器采用偏差e、
偏差变化速率de/dt和偏差累积∫edt作为输入信号,
利用聚焦式量化算法对这3个输入论域进行离散化,
模糊化后采用模糊变结构算法 对三维输入进行二维的模糊推理,
大大简化了模糊推理的过程. 仿真结果表明: 新算法具有很好的动态品质,
可以有效地消除系统的稳态误差.
该算法在广东某电厂2^#机组锅炉的汽温控制系统中得到成功的应用,
其控制效果良好.
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| 英文摘要 |
| In order to control the complex
nonlinear system effectively, a focusing variable structure fuzzy
control algorithm is presented in this paper. Firstly, the variable
error e , its derivative ${\displaystyle\frac{{\rm d}e}{{\rm d}t}}$
and its integral ${\displaystyle\varint e{\rm d}t}$ are regarded as
input. A focusing discretization algorithm is then applied to
discretize these three input variables, and these three input
variables are also fuzzed up to fuzzy sets respectively.
Furthermore, a variable structure fuzzy control algorithm is applied
to do 2-dimension reasoning by using 3-dimension input variables,
the reasoning process is simplified greatly. Simulation result shows
that the new control system has good dynamic quality and its steady
error is eliminated. The proposed algorithm is applied to a steam
temperature control for a boiler in a power plant of Guangdong
Province, the practical control effect is proved to be satisfactory. |
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