A new technique with improved control quality of nonlinear systems using an optimized fuzzy logic controller

2020 ◽  
Vol 145 ◽  
pp. 113148 ◽  
Author(s):  
Kheireddine Lamamra ◽  
Farida Batat ◽  
Fouad Mokhtari
Keyword(s):  
Fuzzy Logic ◽  
Nonlinear Systems ◽  
Fuzzy Logic Controller ◽  
New Technique ◽  
Control Quality ◽  
A New Technique

scholarly journals A Novel Rules Based Approach for Estimating Software Birthmark

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Shah Nazir ◽  
Sara Shahzad ◽  
Sher Afzal Khan ◽  
Norma Binti Alias ◽  
Sajid Anwar
Keyword(s):  
Fuzzy Logic ◽  
Soft Computing ◽  
Fuzzy Rule ◽  
New Technique ◽  
License Agreement ◽  
Rule Based ◽  
Software Birthmark ◽  
A New Technique

Software birthmark is a unique quality of software to detect software theft. Comparing birthmarks of software can tell us whether a program or software is a copy of another. Software theft and piracy are rapidly increasing problems of copying, stealing, and misusing the software without proper permission, as mentioned in the desired license agreement. The estimation of birthmark can play a key role in understanding the effectiveness of a birthmark. In this paper, a new technique is presented to evaluate and estimate software birthmark based on the two most sought-after properties of birthmarks, that is, credibility and resilience. For this purpose, the concept of soft computing such as probabilistic and fuzzy computing has been taken into account and fuzzy logic is used to estimate properties of birthmark. The proposed fuzzy rule based technique is validated through a case study and the results show that the technique is successful in assessing the specified properties of the birthmark, its resilience and credibility. This, in turn, shows how much effort will be required to detect the originality of the software based on its birthmark.

scholarly journals Fuzzy Logic Controller Based DVR For Power Quality Improvement under Different Power Disturbances with Non-Linear Loads

2019 ◽  
Vol 15 (2) ◽  
pp. 50-60
Author(s):  
Abdul-Jabbar Ali ◽  
Wael Zayer ◽  
Samhar Shukir
Keyword(s):  
Fuzzy Logic ◽  
Electric Power ◽  
Power Quality ◽  
Distribution System ◽  
Fuzzy Logic Controller ◽  
Electric Power Industry ◽  
Power Distribution System ◽  
Non Linear ◽  
Power Disturbances

The power quality problems can be defined as the difference between the quality of power supplied and the quality of power required. Recently a large interest has been focused on a power quality domain due to: disturbances caused by non-linear loads and Increase in number of electronic devices. Power quality measures the fitness of the electric power transmitted from generation to industrial, domestic and commercial consumers. At least 50% of power quality problems are of voltage quality type. Voltage sag is the serious power quality issues for the electric power industry and leads to the damage of sensitive equipments like, computers, programmable logic controller (PLC), adjustable speed drives (ADS). The prime goal of this paper is to investigate the performance of the Fuzzy Logic controller based DVR in reduction the power disturbances to restore the load voltage to the nominal value and reduce the THD to a permissible value which is 5% for the system less than 69Kv. The modeling and simulation of a power distribution system have been achieved using MATLABL/Simulink. Different faults conditions and power disturbances with linear and non-linear loads are created with the proposed system, which are initiated at a duration of 0.8 sec and kept till 0.95 sec.

scholarly journals Path Planning of Mobile Robot Using Fuzzy-Potential Field Method

2015 ◽  
Vol 11 (1) ◽  
pp. 32-41
Author(s):  
Alaa Ahmed ◽  
Turki Abdalla ◽  
Ali Abed
Keyword(s):  
Fuzzy Logic ◽  
Mobile Robot ◽  
Potential Field ◽  
Fuzzy Logic Controller ◽  
Field Method ◽  
Artificial Potential Field ◽  
Local Minima ◽  
Potential Field Method ◽  
Artificial Potential Field Method

This paper deals with the navigation of a mobile robot in unknown environment using artificial potential field method. The aim of this paper is to develop a complete method that allows the mobile robot to reach its goal while avoiding unknown obstacles on its path. An approach proposed is introduced in this paper based on combing the artificial potential field method with fuzzy logic controller to solve drawbacks of artificial potential field method such as local minima problems, make an effective motion planner and improve the quality of the trajectory of mobile robot.

scholarly journals Implementación de un presupuesto empresarial base cero bajo el enfoque difuso. //Implementation of a zero based business budget under the diffuse approach.

Ciencia Unemi ◽  
2018 ◽  
Vol 11 (27) ◽  
pp. 43-51
Author(s):  
Kleber Antonio Luna-Altamirano ◽  
Jaime Tinto-Arandes ◽  
William Sarmiento-Espinoza ◽  
Diego Cisneros-Quintanilla
Keyword(s):  
Fuzzy Logic ◽  
Fuzzy Numbers ◽  
New Technique ◽  
Economic Dynamics ◽  
Trapezoidal Fuzzy Numbers ◽  
Revenue Structure ◽  
The Face ◽  
A New Technique ◽  
Current Reality ◽  
Budget Levels

El presente artículo hace referencia a la implementación de una nueva técnica de análisis y estructuración en la construcción del presupuesto empresarial, denominada “Presupuesto Base Cero” (PBC), en una empresa de calzado en el cantón Gualaceo Provincia del Azuay-Ecuador. El objetivo de la investigación se basa en construir un presupuesto que permita capturar la dinámica económica de la empresa, optimizando los costos para lograr alcanzar las metas en el mediano y largo plazo. La metodología utilizada, consistió en la aplicación de herramientas de avanzada de la lógica difusa, utilizando números borrosos trapezoidales (NBTr), permitiendo capturar los verdaderos niveles presupuestarios que necesitará la empresa para hacer predicciones y poder lograr los objetivos que persigue la institución. Como resultado de esta investigación, se logra determinar los niveles óptimos de presupuesto que puede alcanzar la empresa de calzado dado una estructura estimada de ingresos, que permita a la alta gerencia direccionar variables y tomar las mejores decisiones posibles frente a la realidad actual.AbstractThis article refers to the implementation of a new technique of analysis and structuring in the construction of the business budget, called "Base Zero Budget" (PBC), in a footwear company in the Gualaceo canton, Province of Azuay-Ecuador. The objective of the research is based on building a budget that allows capturing the economic dynamics of the company, optimizing the costs to achieve the goals, which the company achieves in the medium and long term.The methodology used consisted of the application of advanced tools of fuzzy logic, using trapezoidal fuzzy numbers (NBTr), allowing to capture the true budget levels required by the company to make predictions and achieve the objectives pursued by the institution. As a result of this research, it is possible to determine the optimal budget levels that this footwear company can achieve given an estimated revenue structure, which allows top management to address variables and make the best possible decisions in the face of current reality.

scholarly journals A New Technique for Determining Approximate Center of a Polytope

2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
Syed Inayatullah ◽  
Maria Aman ◽  
Asma Rani ◽  
Hina Zaheer ◽  
Tanveer Ahmed Siddiqi
Keyword(s):  
Linear Programming ◽  
Geometrical Interpretation ◽  
New Method ◽  
New Technique ◽  
Computational Results ◽  
Numerical Examples ◽  
A New Technique

In this article, we have presented a method for finding the approximate center of a linear programming polytope. This method provides a point near the center of a polytope in few simple and easy steps. Geometrical interpretation and some numerical examples have also been presented to demonstrate the proposed approach and comparison of quality of the center obtained by using the new method with existing methods of finding exact and approximate centers. At the end, we also presented computational results on the randomly generated polytopes to compare the quality of the center obtained by using the new method.

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