CONSTRAINED NONLINEAR OPTIMAL CONTROL VIA A HYBRID BA-SD

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ALFI A.; KHOSRAVI A.

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Journal Paper

Paper Information

Journal: INTERNATIONAL JOURNAL OF ENGINEERING Year:2012 | Volume:25 | Issue:3 (TRANSACTIONS C: ASPECTS) Page(s): 197-204

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Information Journal Paper

Title

CONSTRAINED NONLINEAR OPTIMAL CONTROL VIA A HYBRID BA-SD

Author(s)

ALFI A. | KHOSRAVI A. | Issue Writer Certificate

Keywords

CONSTRAINED OPTIMIZATION

SWARM INTELLIGENCE

BEES ALGORITHM

STEEPEST DESCENT

DIFFERENTIAL EVOLUTION

GENETIC ALGORITHM

Abstract

The non-convex behavior presented by nonlinear systems limits the application of classical optimization techniques to solve optimal control problems for these kinds of systems. This paper proposes a hybrid algorithm, namely BA-SD, by combining Bee algorithm (BA) with STEEPEST DESCENT (SD) method for numerically solving nonlinear optimal control (NOC) problems. The proposed algorithm includes the merits of BA and SD simultaneously. The motivation of presenting the proposed algorithm includes that BA is showed to converge to the region that global optimum is settled, rapidly during the initial stages of its search. However, around global optimum, the search process will become slowly. In contrast, SD method has low ability to convergence to local optimum, but it can achieve faster convergent speed around global optimum and the convergent accuracy can be higher. In the proposed algorithm, at the beginning step of search procedure, BA is utilized to find a near optimum solution. In this case, the hybrid algorithm is used to enhance global search ability. When the change in fitness value is smaller than a predefined value, the searching procedure is switched to SD to accelerate the search procedure and find an accurate solution. In this way, the algorithm finds an optimum solution more accurately. Simulations demonstrate the feasibility of the proposed algorithm.

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APA: Copy

ALFI, A., & KHOSRAVI, A.. (2012). CONSTRAINED NONLINEAR OPTIMAL CONTROL VIA A HYBRID BA-SD. INTERNATIONAL JOURNAL OF ENGINEERING, 25(3 (TRANSACTIONS C: ASPECTS)), 197-204. SID. https://sid.ir/paper/581789/en

Vancouver: Copy

ALFI A., KHOSRAVI A.. CONSTRAINED NONLINEAR OPTIMAL CONTROL VIA A HYBRID BA-SD. INTERNATIONAL JOURNAL OF ENGINEERING[Internet]. 2012;25(3 (TRANSACTIONS C: ASPECTS)):197-204. Available from: https://sid.ir/paper/581789/en

IEEE: Copy

A. ALFI, and A. KHOSRAVI, “CONSTRAINED NONLINEAR OPTIMAL CONTROL VIA A HYBRID BA-SD,” INTERNATIONAL JOURNAL OF ENGINEERING, vol. 25, no. 3 (TRANSACTIONS C: ASPECTS), pp. 197–204, 2012, [Online]. Available: https://sid.ir/paper/581789/en

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