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专家-模糊滑模变结构控制伺服系统的研究 被引量:3
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作者 王传忠 杨霞 李强 《河北工业大学学报》 CAS 2001年第5期52-55,共4页
根据离散滑模控制理论和专家、模糊控制理论,针对矢量控制的交流伺服系统,设计了一种离散专家-模糊滑模控制器,即在离散滑模控制器后加一个积分环节再与专家模糊控制器相结合,有效地削弱了单纯滑模变结构控制系统的“抖振”.可见... 根据离散滑模控制理论和专家、模糊控制理论,针对矢量控制的交流伺服系统,设计了一种离散专家-模糊滑模控制器,即在离散滑模控制器后加一个积分环节再与专家模糊控制器相结合,有效地削弱了单纯滑模变结构控制系统的“抖振”.可见,由该离散专家模糊滑模控制器构成的交流伺服系统,具有良好的快速性和抗负载扰动、参数摄动的鲁棒性. 展开更多
关键词 离散滑模控制 专家-模糊控制 伺服系统 控制 设计
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智能算法在水电机组一次调频优化中的应用
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作者 吕金花 刘友宽 +2 位作者 苏适 陆海 孙建平 《云南电力技术》 2018年第4期60-63,66,共5页
为了提高电网的控制质量,对发电机组也提出了相关的考核标准。水电中一次调频对于维持电网频率的稳定具有重要意义,其结果是否受到考核与调速器密不可分。本文在一次调频技术的前提下,对调速器的参数进行优化,引进了专家-模糊控制,阐述... 为了提高电网的控制质量,对发电机组也提出了相关的考核标准。水电中一次调频对于维持电网频率的稳定具有重要意义,其结果是否受到考核与调速器密不可分。本文在一次调频技术的前提下,对调速器的参数进行优化,引进了专家-模糊控制,阐述了算法的原理,并对一种优化算法PSO进行了改进以优化模糊控制中的两个参数:比例因子和量化因子。仿真结果表明PID参数经优化后,一次调频的控制效果得到了明显改善,满足考核标准的要求,提高了控制质量。 展开更多
关键词 一次调频 PSO算法 专家-模糊控制 参数优化
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An Intelligent System for a Resource Allocation Problem Based on Fuzzy Reasoning
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作者 Vasile Mazilescu 《Computer Technology and Application》 2011年第4期247-255,共9页
The development of the assistive abilities regarding the decision-making process o fan Intelligent Control System (ICS) like a fuzzy expert system implies the development of its functionality and its ability of spec... The development of the assistive abilities regarding the decision-making process o fan Intelligent Control System (ICS) like a fuzzy expert system implies the development of its functionality and its ability of specification. Fuzzy expert systems can model fuzzy controllers, i.e., the knowledge representation and the abilities of making decisions corresponding to fuzzy expert systems are much more complicated that in the case of standard fuzzy controllers. The expert system acts also as a supervisor, creating meta-level reasoning on a set of fuzzy controllers, in order to choose the best one for the management of the process. Knowledge Management Systems (KMSs) is a new development paradigm of Intelligent Systems which has resulted from a synergy between fuzzy sets, artificial neural networks, evolutionary computation, machine learning, etc., broadening computer science, physics, economics, engineering, mathematics. This paper presents, after a synergic new paradigm of intelligent systems, as a practical case study the fuzzy and temporal properties of knowledge formalism embedded in an ICS. We are not dealing high with level reasoning methods, because we think that real-time problems can only be solved by rather low-level reasoning. Solving the match-time predictability problem would allow us to build much more powerful reasoning techniques. 展开更多
关键词 Intelligent control knowledge management systems (KMSs) fuzzy reasoning logical aspects for KMSs resource allocation problem (RAP).
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