【作者】 朱晨亮；

【导师】 杨马英；

【作者基本信息】 浙江工业大学 ， 系统工程， 2007， 硕士

【摘要】 随着工业生产规模的扩大和生产工艺技术的改进,所需控制的对象越来越复杂,常伴有时变和不确定性,难以用已有的数学解析方法精确描述被控对象特性;另一方面,控制性能要求却很高,控制目标呈多层次、多样化的特点。这一切都使传统控制理论遇到了严重挑战,必须发展新的控制理论。沿着控制理论和技术的发展历史可以看出,其产生、存在和发展的条件必然与当时的物质和技术基础相适应。计算机技术、人工智能技术和信息论的迅速发展,为控制理论和技术进行变革性发展提供了条件。本文正是在这样的背景下,针对复杂的过程对象,着重研究基于Agent的智能控制系统的实现方法。本文以Agent协作机制为出发点,将结果共享的协作策略应用于关联过程系统中。运用Agent理论将系统划分为若干Agent,一方面每个Agent独立控制自身回路,另一方面系统的各Agent之间采用结果共享的协作策略,获得系统的局部和全局信息,通过控制系统仿真得到了良好的控制效果。最后在实验室DCS、PLC装置平台下的实例研究,结果表明,基于Agent的控制结构有效地解决了关联对象控制系统中不同回路间的解耦和协调问题,是实现复杂过程系统控制的一种可行方案。另外,本文还把研究多人决策问题的博弈理论引入到多Agent之间的协作行为中,提出了基于不完全信息静态博弈的多Agent之间的协作模型,并对协作算法的实现进行了探讨。本文的研究面向生产需求,探讨将人工智能控制领域的先进理论应用于工业过程控制的途径,研究工作为丰富复杂工业过程系统的控制方法提供了有价值的结果。更多还原

【Abstract】 Along with industrial production scale expansion and production processing technology improvement,the control object is become more and more complex, time-variable and the uncertainty.It is difficulty for the mathematical analysis method which already has to description object performance accurately.On the other hand,the control performance requirement is very high,The control goal becomes diverse and multi-level.All these caused the traditional control theory to face the serious challenge and have to develop the new control theory.In history, Control technology and theory comes into being,exist and develop must be adapted with the material and technology which has been.Developing rapidly in the computer technology,the artificial intelligence technology and the information theory,it provides for the transformation development in the control technology and theory.In this paper,to a kind of complex process control system,an agent based intelligence control system is put forward:According to Agent cooperation mechanism,result-sharing cooperation collaboration strategy is applied in associated process control system.Using the Agent theory,the system is divided into several agents.On the one hand agents control own loop independently,on the other hand each agent makes use of the result sharing cooperation strategy to obtain local and global information from the system,with satisfying control results obtained.Finally,the proposed agent based cooperation mechanism control strategy is executed in process system which consists of DCS,PLC.The result show that the problem of decouple and coordination in the different loop of the complex process control system has been solved effectively by utilizing the structure of Agent.In-addition,the paper researched cooperation and coordination of MAS by game theory and its realization also has been mentioned.The essay combines the theory research and practice together.Brought artificial intelligence control theory from other related field into industry process control field,the paper pointed out a new way for the research of automatic control theory applied in industry complex process system,which has provided the valuable result.更多还原