Results 61 to 70 of about 272,878 (339)

FPGA implementation of adaptive sliding mode control and genetically optimized PID control for fractional-order induction motor system with uncertain load

Advances in Difference Equations, 2017
In this paper, we investigate the control of 4-D nonautonomous fractional-order uncertain model of a PI speed-regulated current-driven induction motor (FOIM) using a fractional-order adaptive sliding mode controller (FOASMC).
Karthikeyan Rajagopal, Guessas Laarem, Anitha Karthikeyan, Ashokkumar Srinivasan   +3 more
doaj   +1 more source

Basic Properties and Stability of Fractional-Order Reset Control Systems

, 2013
Reset control is introduced to overcome limitations of linear control. A reset controller includes a linear controller which resets some of states to zero when their input is zero or certain non-zero values.
HosseinNia, S. Hassan, Tejado, Inés, Vinagre, Blas M   +2 more
core   +1 more source

Design and tuning of fractional-order PID controllers for time-delayed processes [PDF]

, 2016
Frequency domain based design methods are investigated for the design and tuning of fractional-order PID for scalar applications. Since Ziegler-Nichol’s tuning rule and other algorithms cannot be applied directly to tuning of fractional-order controllers,
Edet, Emmanuel, Katebi, Reza
core   +1 more source

Indirect sliding mode adaptive fractional order nonlinear observer based controller with fractional order single-ended primary inductor converter

International Journal of Electrical Power & Energy Systems
Direct Current to Direct Current (DC/DC) converters like the SEPIC (Single-Ended Primary-Inductor Converter) use both passive and active components to control the system via a duty cycle. The SEPIC converter is non-inverting and can both step up and step
Sena Alemu Wondimu, Desalegn Tsega Dagne, Kinde Anlay Fante   +2 more
doaj   +1 more source

Symbolic Representation for Analog Realization of A Family of Fractional Order Controller Structures via Continued Fraction Expansion [PDF]

, 2018
This is the author accepted manuscript. The final version is available from Elsevier via the DOI in this record.This paper uses the Continued Fraction Expansion (CFE) method for analog realization of fractional order differ-integrator and few special ...
Das, S, Das, S, Pakhira, A, Pan, I
core   +1 more source

A Fractional-Order On-Line Self Optimizing Control Framework and a Benchmark Control System Accelerated Using Fractional-Order Stochasticity

Fractal and Fractional, 2022
This paper presents a design and evaluation of a fractional-order self optimizing control (FOSOC) architecture for process control. It is based on a real-time derivative-free optimization layer that adjusts the parameters of a discrete-time fractional ...
Jairo Viola, YangQuan Chen
doaj   +1 more source

A combined backstepping and fractional-order PID controller to trajectory tracking of mobile robots

Systems Science & Control Engineering, 2022
Trajectory tracking is a critical problem in the field of mobile robotics. In this paper, a control scheme combined with backstepping and fractional-order PID is developed for the trajectory tracking of the differential-drive mobile robot.
Lin Xu, Jiaqiang Du, Baoye Song, Maoyong Cao   +3 more
semanticscholar   +1 more source

Optimum Weight Selection Based LQR Formulation for the Design of Fractional Order PI{\lambda}D{\mu} Controllers to Handle a Class of Fractional Order Systems

, 2013
A weighted summation of Integral of Time Multiplied Absolute Error (ITAE) and Integral of Squared Controller Output (ISCO) minimization based time domain optimal tuning of fractional-order (FO) PID or PI{\lambda}D{\mu} controller is proposed in this ...
Das, Saptarshi, Das, Shantanu, Gupta, Amitava, Halder, Kaushik, Pan, Indranil   +4 more
core   +1 more source

Tuning fractional PID controllers for a Steward platform based on frequency domain and artificial intelligence methods [PDF]

, 2013
In this paper, two methods to tune a fractional-order PI (lambda) D (mu) controller for a mechatronic system are presented. The first method is based on a genetic algorithm to obtain the parameter values for the fractionalorder PI (lambda) D (mu ...
Copot, Cosmin, De Keyser, Robain, Ionescu, Clara-Mihaela, Zhong, Yu   +3 more
core   +2 more sources

Decoupled control of grid connected photovoltaic system using fractional order controller

Ain Shams Engineering Journal, 2016
In a grid connected photovoltaic (PV) system, dynamic control strategy is essential to use the solar energy efficiently as well as for an energy optimization.
M. Lakshmi, S. Hemamalini
semanticscholar   +1 more source