Hybrid algorithm with fuzzy system and conventional PI control for the temperature control of TV glass furnace
Hybrid algorithm with fuzzy system and conventional PI control for the temperature control of TV glass furnace
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DOI：
10.1109/tcst.2003.813385
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发表时间：
2003-07
期刊：
影响因子：
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通讯作者：
U. Moon;Kwang Y. Lee
中科院分区：
文献类型：
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作者：
U. Moon;Kwang Y. Lee
介绍了模糊逻辑在电视显像管玻璃熔窑温度控制中的实际应用。由于玻璃熔窑的复杂性和非线性，玻璃熔窑的温度控制仍然委托给人工操作。尽管玻璃熔窑的整体特性是复杂的、非线性的，但其中一部分特性可以建模为一个线性系统。炉膛动态的线性部分用一阶加纯滞后(FOPDT)系统建模，FOPDT模型采用比例积分(PI)控制器。炉膛动态的其余复杂和非线性部分被模糊系统，即人类专家的规则所覆盖。PI控制器与模糊系统级联。采用PI控制器维持加热炉左右对称运行，并对温度变化趋势进行线性回归以确定模糊系统的输入，以克服高频扰动。将所提出的混合控制器应用于三星-康宁公司，验证了所提出控制算法的有效性。
This paper presents a practical application of fuzzy logic to the temperature control of glass melting furnace for television picture tube. Because of the complexity and nonlinearity, temperature control of glass melting furnace is still delegated to human operators. Though the overall characteristics of glass melting furnace are complex and nonlinear, one part of the furnace characteristics can be modeled as a linear system. The linear part of the furnace dynamics is modeled with a first-order-plus-dead-time (FOPDT) system and a proportional integral (PI) controller is applied to the FOPDT model. The remaining complex and nonlinear part of the furnace dynamics is covered by the fuzzy system, i.e., rules of human experts. The PI controller and fuzzy system are combined in cascade. The PI controller is applied to maintain the left-right symmetric operation of the furnace, and a linear regression is used for the temperature trend to determine input to the fuzzy system in order to overcome the high frequency disturbance. The proposed hybrid controller is implemented in Samsung-Corning Company to demonstrate the effectiveness of the proposed control algorithm.