Title: A novel sufficient bio-inspired optimisation method based on modified krill herd algorithm to solve the economic load dispatch

Authors: Abdollah Kavousi-Fard; Mohammad-Reza Akbari-Zadeh; Bahram Dehghan; Farzaneh Kavousi-Fard

Addresses: Nourabad Mamasani Branch, Islamic Azad University, Nourabad Mamasani, Iran ' Nourabad Mamasani Branch, Islamic Azad University, Nourabad Mamasani, Iran ' Nourabad Mamasani Branch, Islamic Azad University, Nourabad Mamasani, Iran ' Nourabad Mamasani Branch, Islamic Azad University, Nourabad Mamasani, Iran

Abstract: Economic dispatch (ED) is a noteworthy and valuable plan in the power grids for providing balance between the load and generation in a commercial manner. Actually, the practical ED is a non-convex nonlinear optimisation problem with some equality and inequality limits. Mathematically, the practical ED entails a prevailing solver to find the optimal solution. In this way, this article proposes a new bio-inspired algorithm called krill herd (KH) to resolve the practical ED problem incorporating different types of constraints such as valve-loading effects, prohibited operating zone, spinning reserve and multi-fuel option. In order to improve the overall search skill of the algorithm, a new modification method based on Levy Flight motion and crossover operator is employed. The proposed modified KH (MKH) algorithm is examined on three test systems to validate its satisfying performance.

Keywords: modified krill herd algorithm; MKH algorithm; non-convex objective; bio-inspired optimisation; economic load dispatch; economic dispatch; power grids; nonlinear optimisation; valve-loading effects; prohibited operating zone; spinning reserve; multi-fuel option; power generation.

DOI: 10.1504/IJBIC.2014.066973

International Journal of Bio-Inspired Computation, 2014 Vol.6 No.6, pp.416 - 423

Received: 06 Feb 2014
Accepted: 10 Oct 2014
Published online: 24 Jan 2015 *

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