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模糊PID控制在过程控制装置上的应用 总被引:2,自引:0,他引:2
简单介绍了常规PID控制的优缺点和模糊控制的基本原理,介绍了模糊PID控制的系统结构,针对过程控制装置中的单容液位被控对象,基于Matlab仿真和组态王控制软件进行应用实现,仿真和应用实现效果均表明,模糊PID具有比常规PID更好的控制效果。仿真和应用结果对于过程控制的理论研究和工程应用,具有较好的参考价值。 相似文献
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本文主要对于工业自动化控制系统中最常用的PID调节器作一探讨,并结合自己在实际工业控制中的应用,针对PID调节器中积分项饱和的问题,提出了一种准饱和的应对策略,实际应用效果很好,并可运用于其它的PID调节器控制场合。 相似文献
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在PID控制中采用数字滤波和动态补偿技术 总被引:5,自引:0,他引:5
介绍了微机控制系统中的数字PID控制算式,重点了数字平滑滤波、一阶递推滤波和动态补偿技术在改善控制性能、提高控制精度中的作用,给出了仿真实验的结果图。 相似文献
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本文主要介绍了变频调速在恒压供水系统中的应用,系统中采用了数字滤波技术和数字PID控制技术,有效的减小了系统中的干扰,提高了系统的稳定性。 相似文献
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用遗传算法实现PID参数整定 总被引:12,自引:3,他引:12
PID参数整定一直是控制领域中的重要研究问题。本文在MATLAB平台上将遗传算法应用于PID参数的自动整定,算法实例仿真取得了良好的效果,为PID参数整定方法提供了一种新的尝试。 相似文献
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双闭环调速系统设计方法的改进及其仿真 总被引:1,自引:0,他引:1
工程设计方法是双闭环调速系统最常用的设计方法。但在更高性能要求时则需要更好的设计方法。为此对电流环的结构与设计方法进行了改进,并且把用改进方法所设计的系统性能指标与用工程设计方法设计的指标进行了比较。通过对2种不同方法设计结果的计算机仿真分析,验证了改进方法的优越性。 相似文献
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《Advanced Engineering Informatics》2002,16(1):3-19
This paper introduces a novel method for analyzing conceptual design data. Given a database of previous designs, this method identifies relationships between design components within this database. Further, the method transforms these relationships into explicit design knowledge that can be used to generate a ‘heuristic-based’ model of the design domain for use at the conceptual stage. This can be viewed as a knowledge extracting method for the conceptual design stage. Such a method is particularly interesting, as the conceptual stage typically lacks explicit models to describe the trade-offs that must be made when designing. The method uses either principal components analysis or self-organizing maps to identify the relationships, and this paper describes all the elements required by the method to successfully extract and verify design knowledge from design databases. 相似文献
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We evaluated the performance of an optimal design method for a multilayer perceptron (MLP) by using the design of experiments
(DOE). In our previous work, we proposed an optimal design method for MLPs in order to determine the optimal values of such
parameters as the number of neurons in the hidden layers and the learning rates. In this article, we evaluate the performance
of the proposed design method through a comparison with a genetic algorithm (GA)-based design method. We target an optimal
design of MLPs with six layers. We also evaluate the proposed designed method in terms of calculating the amount of optimization.
Through the above-mentioned evaluation and analysis, we aim at improving the proposed design method in order to obtain an
optimal MLP with less effort. 相似文献
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New product design is inspired by the existing design. The clustering of similar design cases therefore enhances new product development (NPD). At the beginning of NPD, the success of creative design highly depends on the designers’ subjective judgments and try-and-error attempts due to its very obscure prospect. To facilitate an efficient approach for generating creative ideas, this paper proposes a new design method by integrating fuzzy relational analysis, case-based reasoning (CBR) and C-K theory. The proposed design method involves four specific sections: design criteria importance ranking; similarity measurement for design knowledge; knowledge clustering method for innovation and a step-by-step design algorithm. Moreover, a new battery buckling machinery is used as a empirical study to verify the workability of the proposed method. The contributed method shows its advantages to cultivate the inspirations from the existing design and generate creative design concepts from knowledge combination. 相似文献
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范红杰 《艺术与设计.数码设计》2007,(2)
本文通过科学方法与艺术设计的交叉和融合入手,通过科学方法的三大方向分析了科学与艺术设计的关系,得出科学方法指导艺术设计形式,在艺术设计的实际过程中起到核心性作用的主要论点。体现了科学方法对我们工业设计研发、创新的指导性意义。 相似文献
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马万贞 《数码设计:surface》2008,(9):60-62
在礼品包装设计中,不同的礼品,包装造型方法和装潢形式各异,本文提出使用传统的布帛包装材料,结合新的设计理念和工艺技术进行创作,总结出三种较典型的布帛包装造型和应用方法。本文还探寻了在具体设计中,灵活融入布帛工艺和文化内涵、结合其他装饰元素,用传统而又时尚的手法,创造出具有复用价值和文化气息的礼品包装设计。 相似文献