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中文摘要：
针对多座焦炉集气过程的不对称、强耦合、强干扰和非线性等特点,通过分析不对称特性与耦合关系,提出一种基于耦合度的智能解耦控制方法。首先,利用概率统计法计算各座焦炉集气管蝶阀开度与各集气管压力之间的耦合强度,并进行耦合特性分析,建立焦炉集气管压力智能解耦控制系统结构;然后,根据耦合度的强弱对集气管进行分组,并应用智能解耦算法分别进行组内和组间的解耦控制,从而消除多座焦炉并联生产时各集气管压力之间的耦合影响。实际运行结果表明,该方法不仅实现了多座不对称焦炉集气过程的智能解耦控制,而且具有响应速度快和稳态精度高的优点,同时对外界扰动具有良好的抑制能力。
英文摘要：
Gas collecting process of coke ovens is characterized by asymmetry,strong coupling,great disturbance and non-linearity. Through analysis of asymmetry and coupling relationship,an intelligent decoupling control method based on coupling degree is presented. First,coupling degrees between butterfly valve opening and gas collector pressure were calculated by probability and statistics law,coupling characteristic was analyzed,and structure of intelligent decoupling control system for gas collector pressure was established.Then,multiple gas collectors were grouped based on coupling degree,and intro-group and inter-group decoupling controllers were designed by applying intelligent decoupling control algorithm,so as to eliminate pressure coupling influence of each gas collector caused by parallel production of coke ovens.The results of actual running show that the method not only performs intelligent decoupling control of gas collecting process of coke ovens,but also has advantages of fast response and high steady state accuracy.The method has a good anti-disturbance ability to external interference.
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