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Fuzzy logic based PID controllers have been studied in this paper, considering several combinations of hybrid controllers by grouping the proportional, integral and derivative actions with fuzzy inferencing in different forms. Fractional…

Optimization and Control · Mathematics 2013-06-18 Saptarshi Das , Indranil Pan , Shantanu Das

This paper proposes a fuzzy logic controller for design of autopilot of a ship. Triangular membership functions have been use for fuzzification and the centroid method for defuzzification. A nonlinear mathematical model of an oil tanker has…

Systems and Control · Computer Science 2016-04-13 Dur Muhammad Pathan , Mukhtiar Ali Unar , Zeeshan Ali Memon

Fuzzy relational identification builds a relational model describing systems behaviour by a nonlinear mapping between its variables. In this paper, we propose a new fuzzy relational algorithm based on simplified max-min relational equation.…

Robotics · Computer Science 2007-05-23 P. J. Costa Branco , J. A. Dente

The deployment of 5G millimeter-wave (mmWave) systems poses significant challenges in maintaining power amplifier linearity and efficiency under varying conditions, such as temperature-induced gain variations that degrade error vector…

L1 adaptive controller has been recognized for having a structure that allows decoupling between robustness and adaption owing to the introduction of a low pass filter with adjustable gain in the feedback loop. The trade-off between…

Systems and Control · Computer Science 2018-09-17 Hashim A. Hashim , Sami El-Ferik , Mohamed A. Abido

Increasing demands in performance and quality make drive systems fundamental parts in the progressive automation of industrial processes. Their conventional models become inappropriate and have limited scope if one requires a precise and…

Robotics · Computer Science 2007-05-23 P. J. Costa Branco , J. A. Dente

Designing a robust controller for Modular Multilevel Converters (MMCs) is crucial to ensure stability and optimal dynamic performance under various operating conditions, including faulty and disturbed scenarios. The primary objective of…

Systems and Control · Electrical Eng. & Systems 2024-04-30 Mohammad Ali Labbaf-Khaniki , Mohammad Manthouri , Amin Hajizadeh

In the interconnected power system network, instability problems are caused mainly by the low frequency oscillations of 0.2 to 2.5 Hz. The supplementary control signal in addition with AVR and high gain excitation systems are provided by…

Neural and Evolutionary Computing · Computer Science 2009-12-23 M. Mary Linda , N. Kesavan Nair

A method of a fusion of fuzzy inference and policy gradient reinforcement learning has been proposed that directly learns, as maximizes the expected value of the reward per episode, parameters in a policy function represented by fuzzy rules…

Artificial Intelligence · Computer Science 2020-09-07 Seiji Ishihara , Harukazu Igarashi

This paper concentrates on the study of the decentralized fuzzy control method for a class of fractional-order interconnected systems with unknown control directions. To overcome the difficulties caused by the multiple unknown control…

Systems and Control · Electrical Eng. & Systems 2020-10-20 Bingyun Liang , Shiqi Zheng , Choon Ki Ahn

The dead-zone nonlinearity is frequently encountered in many industrial automation equipment and its presence can severely compromise control system performance. Due to the possibility to express human experience in an algorithmic manner,…

Systems and Control · Electrical Eng. & Systems 2022-06-02 Wallace Moreira Bessa , Max Suell Dutra , Edwin Kreuzer

The role of inferencing with uncertainty is becoming more important in rule-based expert systems (ES), since knowledge given by a human expert is often uncertain or imprecise. We have succeeded in designing a VLSI chip which can perform an…

Artificial Intelligence · Computer Science 2013-04-12 Masaki Togai , Hiroyuki Watanabe

Simple power electronic drive circuit and fault tolerance of converter are specific advantages of SRM drives, but excessive torque ripple has limited its use to special applications. It is well known that controlling the current shape…

Robotics · Computer Science 2009-10-31 L. Henriques , L. Rolim , W. Suemitsu , P. J. Costa Branco , J. A. Dente

Fuzzy controllers are efficient and interpretable system controllers for continuous state and action spaces. To date, such controllers have been constructed manually or trained automatically either using expert-generated problem-specific…

Neural and Evolutionary Computing · Computer Science 2017-08-18 Daniel Hein , Alexander Hentschel , Thomas Runkler , Steffen Udluft

Many researchers around the world are researching to get control solutions that enhance robots' ability to navigate in dynamic environments autonomously. However, until these days robots have limited capability and many navigation tasks on…

Robotics · Computer Science 2024-01-11 Assefinew Wondosen , Dereje Shiferaw

Effective traffic signal control (TSC) is crucial in mitigating urban congestion and reducing emissions. Recently, reinforcement learning (RL) has been the research trend for TSC. However, existing RL algorithms face several real-world…

Systems and Control · Electrical Eng. & Systems 2025-09-30 Mingyuan Li , Jiahao Wang , Bo Du , Jun Shen , Qiang Wu

Robot manipulators are extensively used in industrial applications because of their immense importance such as in constructions automation. Therefore, designing controllers to suit the intensive purpose of the application is one of the…

Robotics · Computer Science 2019-10-29 Usman Kabir , Mukhtar Fatihu Hamza , Ado Haruna , Gaddafi Sani Shehu

Use of Control theory within process control industries has changed rapidly due to the increase complexity of instrumentation, real time requirements, minimization of operating costs and highly nonlinear characteristics of chemical process.…

Systems and Control · Computer Science 2013-05-14 Oumair Naseer , Atif Ali Khan

The distribution system problems, such as planning, loss minimization, and energy restoration, usually involve the phase balancing or network reconfiguration procedures. The determination of an optimal phase balance is, in general, a…

Other Computer Science · Computer Science 2015-03-19 A. Ukil , W. Siti

A variety of control systems have been proposed for aircraft autopilot systems. Traditional approaches such as proportional controller and conventional PID (CPID) controller are widely used. PID controller has a good static performance…

Systems and Control · Computer Science 2015-10-12 Nima Beygi , Maani Beigy , Mehdi Siahi