In collaboration with Payame Noor University and Iranian Society of Instrumentation and Control Engineers
Control and Optimization
Optimal Adaptive Sliding Mode Control for a Class of Nonlinear Affine Systems

Masoomeh Ebrahimipour; Saeed Nezhadhosein‎; Seyed Mehdi Mirhosseini-Alizamini

Articles in Press, Accepted Manuscript, Available Online from 23 November 2023

https://doi.org/10.30473/coam.2023.67868.1236

Abstract
  This paper presents an optimal robust adaptive technique for controlling a certain class of uncertain nonlinear affine systems‎. ‎The proposed approach combines sliding mode control‎, ‎a linear quadratic regulator for optimality, and gradient descent as an adaptive controller‎. ‎ ...  Read More

Control and Optimization
Solving Fractional Optimal Control-Affine Problems via Fractional-Order Hybrid Jacobi Functions

Zeinab Barary; AllahBakhsh Yazdani Cherati; Somayeh Nemati

Articles in Press, Accepted Manuscript, Available Online from 16 December 2023

https://doi.org/10.30473/coam.2023.68826.1243

Abstract
  This paper proposes and analyzes an applicable approach for numerically computing the solution of fractional optimal control-affine problems. The fractional derivative in the problem is considered in the sense of Caputo. The approach is based on a fractional-order hybrid of block-pulse functions and ...  Read More

Control and Optimization
A Numerical Solution of Fractional Optimal Control Problems Using Spectral Method and Hybrid Functions

seyed mehdy shafiof; Javad Askari; Maryam Shams Solary

Volume 3, Issue 1 , July 2018, , Pages 1-25

https://doi.org/10.30473/coam.2019.46969.1119

Abstract
  In this paper‎, ‎a modern method is presented to solve a class of fractional optimal control problems (FOCPs) indirectly‎. ‎First‎, ‎the necessary optimality conditions for the FOCP are obtained in the form of two fractional differential equations (FDEs)‎. ‎Then‎, ...  Read More

Control and Optimization
Haar Matrix Equations for Solving Time-Variant Linear-Quadratic Optimal Control Problems

Saeed Nezhadhosein

Volume 2, Issue 2 , December 2017, , Pages 1-14

Abstract
  ‎In this paper‎, ‎Haar wavelets are performed for solving continuous time-variant linear-quadratic optimal control problems‎. ‎Firstly‎, ‎using necessary conditions for optimality‎, ‎the problem is changed into a two-boundary value problem (TBVP)‎. ‎Next‎, ...  Read More

Control and Optimization
A Computational Method for Solving Optimal Control Problems and Their Applications

Zahra Rafiei; Behzad Kafash; Seyyed Mehdi Karbassi

Volume 2, Issue 1 , April 2017, , Pages 1-13

Abstract
  In order to obtain a solution to an optimal control problem‎, ‎a numerical technique based on state-control parameterization method is presented‎. ‎This method can be facilitated by the computation of performance index and state equation via approximating the control and state variable ...  Read More

Control and Optimization
Numerical Solution of the Controlled Harmonic Oscillator by Homotopy Perturbation Method

Seyed Mehdi Mirhosseini-Alizamini

Volume 2, Issue 1 , April 2017, , Pages 77-91

Abstract
  ‎The controlled harmonic oscillator with retarded damping‎, ‎is an important class of optimal control problems which has an important role in oscillating phenomena in nonlinear engineering systems‎. ‎In this paper‎, ‎to solve this problem‎, ‎we presented an analytical ...  Read More

Control and Optimization
Approximate Pareto Optimal Solutions of Multi objective Optimal Control Problems by Evolutionary Algorithms

Akbar Hashemi Borzabadi; Manije Hasanabadi; Navid Sadjadi

Volume 1, Issue 1 , April 2016, , Pages 1-19

Abstract
  In this paper an approach based on evolutionary algorithms to find Pareto optimal pair of state and control for multi-objective optimal control problems (MOOCP)'s is introduced‎. ‎In this approach‎, ‎first a discretized form of the time-control space is considered and then‎, ‎a ...  Read More