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模糊控制 7

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基于Z数的TODIM与TOPSIS方法 None

Renato A. KROHLING, André G. C. PACHECO, Guilherme A. dos SANTOS

《信息与电子工程前沿(英文)》 2019年 第20卷 第2期   页码 283-291 doi: 10.1631/FITEE.1700434

摘要: 将Z数转化为模糊数,Z-TODIM和Z-TOPSIS分别是模糊TODIM和模糊TOPSIS的直接扩展。将提出的方法应用于两个案例并与使用精确数的标准方法比较,结果证明其可行。

关键词: 多标准决策;TODIM;TOPSIS;模糊数;Z数    

A model for the evaluation of environmental impact indicators for a sustainable maritime transportation systems

Lizzette Pérez LESPIER, Suzanna LONG, Tom SHOBERG, Steven CORNS

《工程管理前沿(英文)》 2019年 第6卷 第3期   页码 368-383 doi: 10.1007/s42524-019-0004-9

摘要: Maritime shipping is considered the most efficient, low-cost means for transporting large quantities of freight over significant distances. However, this process also causes negative environmental and societal impacts. Therefore, environmental sustainability is a pressing issue for maritime shipping management, given the interest in addressing important issues that affect the safety, security, and air and water quality as part of the efficient movement of freight throughout the coasts and waterways and associated port facilities worldwide. In-depth studies of maritime transportation systems (MTS) can be used to identify key environmental impact indicators within the transportation system. This paper develops a tool for decision making in complex environments; this tool will quantify and rank preferred environmental impact indicators within a MTS. Such a model will help decision-makers to achieve the goals of improved environmental sustainability. The model will also provide environmental policy-makers in the shipping industry with an analytical tool that can evaluate tradeoffs within the system and identify possible alternatives to mitigate detrimental effects on the environment.

关键词: Environmental sustainability     maritime transportation system     environmental impact indicators     fuzzy analytic hierarchy process     fuzzy TOPSIS     decision-making tool    

堆石坝坝型优选模型及评价方法研究

陈永兴,常昊天,鲁文妍,任炳昱

《中国工程科学》 2013年 第15卷 第4期   页码 96-101

摘要: 考虑了层次分析法和熵权法对权重确定的不足,将两者结合起来计算综合权重,并运用TOPSIS法对模型进行求解计算,最终确定优选方案。

关键词: 堆石坝     AHP法     熵权法     TOPSIS    坝型优选    

Ranking of design scenarios of TMD for seismically excited structures using TOPSIS

Sadegh ETEDALI

《结构与土木工程前沿(英文)》 2020年 第14卷 第6期   页码 1372-1386 doi: 10.1007/s11709-020-0671-y

摘要: In this paper, design scenarios of a tuned mass damper (TMD) for seismically excited structures are ranked. Accordingly, 10 design scenarios in two cases, namely unconstrained and constrained for the maximum TMD, are considered in this study. A free search of the TMD parameters is performed using a particle swarm optimization (PSO) algorithm for optimum tuning of TMD parameters. Furthermore, nine criteria are adopted with respect to functional, operational, and economic views. A technique for order performance by similarity to ideal solution (TOPSIS) is utilized for ranking the adopted design scenarios of TMD. Numerical studies are conducted on a 10-story building equipped with TMD. Simulation results indicate that the minimization of the maximum story displacement is the optimum design scenario of TMD for the seismic-excited structure in the unconstrained case for the maximum TMD stroke. Furthermore, H of the displacement vector of the structure exhibited optimum ranking among the adopted design scenarios in the constrained case for the maximum TMD stroke. The findings of this study can be useful and important in the optimum design of TMD parameters with respect to functional, operational, and economic perspectives.

关键词: seismic-excited building     TMD     optimum design     PSO     design scenario     TOPSIS    

不完备模糊信息系统

杨习贝,杨静宇,吴陈,傅凡

《中国工程科学》 2006年 第8卷 第7期   页码 47-53

摘要:

以不完备模糊信息系统为研究对象,建立了其中的模糊相容关系及模糊粗糙上、下近似集。在此基础上,探讨了论域上的模糊覆盖问题并提出了覆盖的3种运算形式;定义了2种新的模糊粗糙熵以讨论不完备模糊信息系统中的不确定性因素,证明了不确定因素的变化与度量强度之间的重要关系;建立了一种度量部分模糊知识依赖的新方法,获得了一些新的定理结果证明。

关键词: 不完备模糊信息系统     模糊相容关系     模糊粗糙集     模糊覆盖     模糊粗糙熵     模糊知识依赖    

An overview on the applications of the hesitant fuzzy sets in group decision-making: Theory, support

Zeshui XU, Shen ZHANG

《工程管理前沿(英文)》 2019年 第6卷 第2期   页码 163-182 doi: 10.1007/s42524-019-0017-4

摘要: Due to the characteristics of hesitant fuzzy sets (HFSs), one hesitant fuzzy element (HFE), which is the basic component of HFSs, can express the evaluation values of multiple decision makers (DMs) on the same alternative under a certain attribute. Thus, the HFS has its unique advantages in group decision making (GDM). Based on which, many scholars have conducted in-depth research on the applications of HFSs in GDM. We have viewed lots of relevant literature and divided the existing studies into three categories: theory, support and methods. In this paper, we elaborate on hesitant fuzzy GDM from these three aspects. The first aspect is mainly about the introduction of HFSs, HFPRs and some hesitant fuzzy aggregation operators. The second aspect describes the consensus process under hesitant fuzzy environment, which is an important support for a complete decision-making process. In the third aspect, we introduce seven hesitant fuzzy GDM approaches, which can be applied in GDM under different decision-making conditions. Finally, we summarize the research status of hesitant fuzzy GDM and put forward some directions of future research.

关键词: hesitant fuzzy set     hesitant fuzzy preference relation     group decision-making    

一类连续模糊算子及其应用

张世强

《中国工程科学》 2003年 第5卷 第9期   页码 27-31

摘要:

给出了一类连续模糊算子。从应用的观点出发,分析了常用的三角范算子与连续模糊算子之间的关系。提出了一个新的模糊综合评判标准和方法,指出新的模糊综合评判标准和方法的重要特性在于直接使用未转换的数据,避免丢失原始信息,避免增加干扰信息。对于不同文献中的相关结论,用此标准容易判断出那篇的结论最好。

关键词: 模糊数学     模糊综合评判     三角范算子     连续模糊算子    

多尺度作物种植结构优化及其伴生效应分析 Article

刘琦, 牛俊, 杜太生, 康绍忠

《工程(英文)》 2023年 第28卷 第9期   页码 139-152 doi: 10.1016/j.eng.2023.03.012

摘要: 通过熵权-TOPSIS综合评价模型,实现多种CPSO方案的优选。以中国甘肃省内的黑河流域中上游地区为研究案例,验证本文提出的理论框架,结合虚拟水贸易与系统分析理论为黑河流域确定了最优作物种植结构。

关键词: 种植结构优化     多尺度评价指标体系     水足迹     SWAT-WF模块     省际间粮食贸易     熵权-TOPSIS   

A novel approach for remanufacturing process planning considering uncertain and fuzzy information

《机械工程前沿(英文)》 2021年 第16卷 第3期   页码 546-558 doi: 10.1007/s11465-021-0639-1

摘要: Remanufacturing, as one of the optimal disposals of end-of-life products, can bring tremendous economic and ecological benefits. Remanufacturing process planning is facing an immense challenge due to uncertainties and fuzziness of recoverable products in damage conditions and remanufacturing quality requirements. Although researchers have studied the influence of uncertainties on remanufacturing process planning, very few of them comprehensively studied the interactions among damage conditions and quality requirements that involve uncertain, fuzzy information. Hence, this challenge in the context of uncertain, fuzzy information is undertaken in this paper, and a method for remanufacturing process planning is presented to maximize remanufacturing efficiency and minimize cost. In particular, the characteristics of uncertainties and fuzziness involved in the remanufacturing processes are explicitly analyzed. An optimization model is then developed to minimize remanufacturing time and cost. The solution is provided through an improved Takagi–Sugeno fuzzy neural network (T-S FNN) method. The effectiveness of the proposed approach is exemplified and elucidated by a case study. Results show that the training speed and accuracy of the improved T-S FNN method are 23.5% and 82.5% higher on average than those of the original method, respectively.

关键词: remanufacturing     uncertain and fuzzy information     process planning     T-S FNN    

经济供电半径的Fuzzy几何规划模型与优选方法

曹炳元

《中国工程科学》 2001年 第3卷 第3期   页码 52-55

摘要: 为了确定最佳供电半径,减少投资,降低损耗,建立了Fuzzy环境下的变电所供电半径选择的几何规划模型。它包括软约束问题和含Fuzzy系数的问题。

关键词: Fuzzy几何规划     经济供电半径     优选     变电所容(数)量    

An interval type-2 fuzzy logic controller for TCSC to improve the damping of power system oscillations

Manoj Kumar PANDA, Gopinath PILLAI, Vijay KUMAR

《能源前沿(英文)》 2013年 第7卷 第3期   页码 307-316 doi: 10.1007/s11708-013-0269-3

摘要: In this paper an interval type-2 fuzzy logic controller (IT2FLC) was proposed for thyristor controlled series capacitor (TCSC) to improve power system damping. For controller design, memberships of system variables were represented using interval type-2 fuzzy sets. The three-dimensional membership function of type-2 fuzzy sets provided additional degree of freedom that made it possible to directly model and handle uncertainties. Simulations conducted on a single machine infinite bus (SMIB) power system showed that the proposed controller was more effective than particle swarm optimization (PSO) tuned and type-1 fuzzy logic (T1FL) based damping controllers. Robust performance of the proposed controller was also validated at different operating conditions, various disturbances and parameter variation of the transmission line parameters.

关键词: power system oscillations     thyristor controlled series capacitor (TCSC)     type-2 fuzzy logic system     interval type-2 fuzzy logic controller (IT2FLC)    

Doubly-fed induction generator drive based WECS using fuzzy logic controller

Abdelhak DIDA,Djilani BEN ATTOUS

《能源前沿(英文)》 2015年 第9卷 第3期   页码 272-281 doi: 10.1007/s11708-015-0363-9

摘要: The purpose of this paper is to improve the control performance of the variable speed, constant frequency doubly-fed induction generator in the wind turbine generation system by using fuzzy logic controllers. The control of the rotor-side converter is realized by stator flux oriented control, whereas the control of the grid-side converter is performed by a control strategy based on grid voltage orientation to maintain the DC-link voltage stability. An intelligent fuzzy inference system is proposed as an alternative of the conventional proportional and integral (PI) controller to overcome any disturbance, such as fast wind speed variation, short grid voltage fault, parameter variations and so on. Five fuzzy logic controllers are used in the rotor side converter (RSC) for maximum power point tracking (MPPT) algorithm, active and reactive power control loops, and another two fuzzy logic controllers for direct and quadratic rotor currents components control loops. The performances have been tested on 1.5 MW doubly-fed induction generator (DFIG) in a Matlab/Simulink software environment.

关键词: fuzzy logic     wind turbine     vector control     doubly-fed induction generator (DFIG)    

Statistical process control with intelligence using fuzzy ART neural networks

Min WANG, Tao ZAN, Renyuan FEI,

《机械工程前沿(英文)》 2010年 第5卷 第2期   页码 149-156 doi: 10.1007/s11465-010-0008-y

摘要: With the automation development of manufacturing processes, artificial intelligence technology has been gradually employed to increase the automation and intelligence degree in quality control using statistical process control (SPC) method. In this paper, an SPC method based on a fuzzy adaptive resonance theory (ART) neural network is presented. The fuzzy ART neural network is applied to recognize the special disturbance of the manufacturing processes based on the classification on the histograms, which shows that the fuzzy ART neural network can adaptively learn the features of the histograms of the quality parameters in manufacturing processes. As a result, the special disturbance can be automatically detected when a feature of the special disturbance starts to appear in the histograms. At the same time, combined with spectrum analysis of the autoregressive model of quality parameters, the fuzzy ART neural network can also be utilized to adaptively detect the abnormal patterns in the control chart.

关键词: statistical process control (SPC)     fuzzy adaptive resonance theory (ART)     histogram     control chart     time series analysis    

生产调度的模糊建模方法研究综述

张虹,李歧强,郭庆强,张鹏,高远

《中国工程科学》 2005年 第7卷 第12期   页码 92-102

摘要:

系统地总结了生产调度问题的各种传统建模方法, 并就模糊数学理论和传统建模及智能方法的结合, 综述了目前生产调度的模糊建模方法的研究进展和成果,提出了几个具有前途和代表性的关于这类问题的研究方法, 以期为这类问题的研究指出可行的道路和方向。

关键词: 生产调度     模糊数学     模糊建模    

Gained switching-based fuzzy sliding mode control for a discrete-time underactuated robotic system with

Hui LI, Ruiqin LI, Jianwei ZHANG

《机械工程前沿(英文)》 2021年 第16卷 第2期   页码 353-362 doi: 10.1007/s11465-020-0620-4

摘要: This study proposes a gained switching-based discrete-time sliding mode control method to address the chattering issue in disturbed discrete-time systems, which suffer from various unknown uncertainties. Through the new structure of the designed reaching law, the proposed method can effectively increase the convergence speed while guaranteeing chattering-free control. The performance of controlling underactuated robotic systems can be further improved by the adoption of fuzzy logic to perform adaptive online hyper-parameter tuning. In addition, an underactuated robotic system with uncertainties is studied to validate the effectiveness of the proposed reaching law. Results reveal the dynamic performance and robustness of the proposed reaching law in the studied system and prove the proposed method’s superiority over other state-of-the-art methods.

关键词: sliding-mode control     robot control     discrete-time uncertain systems     fuzzy logic    

标题 作者 时间 类型 操作

基于Z数的TODIM与TOPSIS方法

Renato A. KROHLING, André G. C. PACHECO, Guilherme A. dos SANTOS

期刊论文

A model for the evaluation of environmental impact indicators for a sustainable maritime transportation systems

Lizzette Pérez LESPIER, Suzanna LONG, Tom SHOBERG, Steven CORNS

期刊论文

堆石坝坝型优选模型及评价方法研究

陈永兴,常昊天,鲁文妍,任炳昱

期刊论文

Ranking of design scenarios of TMD for seismically excited structures using TOPSIS

Sadegh ETEDALI

期刊论文

不完备模糊信息系统

杨习贝,杨静宇,吴陈,傅凡

期刊论文

An overview on the applications of the hesitant fuzzy sets in group decision-making: Theory, support

Zeshui XU, Shen ZHANG

期刊论文

一类连续模糊算子及其应用

张世强

期刊论文

多尺度作物种植结构优化及其伴生效应分析

刘琦, 牛俊, 杜太生, 康绍忠

期刊论文

A novel approach for remanufacturing process planning considering uncertain and fuzzy information

期刊论文

经济供电半径的Fuzzy几何规划模型与优选方法

曹炳元

期刊论文

An interval type-2 fuzzy logic controller for TCSC to improve the damping of power system oscillations

Manoj Kumar PANDA, Gopinath PILLAI, Vijay KUMAR

期刊论文

Doubly-fed induction generator drive based WECS using fuzzy logic controller

Abdelhak DIDA,Djilani BEN ATTOUS

期刊论文

Statistical process control with intelligence using fuzzy ART neural networks

Min WANG, Tao ZAN, Renyuan FEI,

期刊论文

生产调度的模糊建模方法研究综述

张虹,李歧强,郭庆强,张鹏,高远

期刊论文

Gained switching-based fuzzy sliding mode control for a discrete-time underactuated robotic system with

Hui LI, Ruiqin LI, Jianwei ZHANG

期刊论文