Abstract
This paper presents an Enriched Black Hole (EBH) algorithm for solving reactive power flow problem. The Black Hole Algorithm starts with a preliminary population of contestant and for all iteration of the black hole algorithm, the most excellent candidate is favored to be the black hole, which followed by pulling further candidates around it, called stars. If a star move very close to the black hole, it will be consumed by the black hole and is vanished undyingly. In such a case, a new star - candidate solution is arbitrarily created and placed in the exploration space and starts a new search. Black hole algorithm is feeble to carry out global search completely in the large size problem spaces. So the enhancement in the amalgamation process in black hole algorithm has to be done. In this work, black hole algorithm will be enhanced, using stars gravities information. For this aim, a kind of gravitational force between stars is defined and the movement of stars to the black hole is adjusted during the penetration of solution space. In order to evaluate the projected Enriched Black Hole (EBH) algorithm, it has been tested in Standard IEEE 57,118 bus systems and compared to other standard reported algorithms. Simulation results reveal about the Enriched performance of the projected algorithm in plummeting the real power loss.
Highlights
Optimal reactive power dispatch problem is one of the difficult optimization problems in power systems
The performance of Enriched Black Hole (EBH) algorithm has been evaluated in Standard IEEE 57,118 bus systems & the results analysis shows that our proposed approach outperforms all approach explored in this paper
At first Enriched Black Hole (EBH) algorithm has been tested in standard IEEE-57 bus power system
Summary
Optimal reactive power dispatch problem is one of the difficult optimization problems in power systems. The reactive power dispatch problem involves best utilization of the existing generator bus voltage magnitudes, transformer tap setting and the output of reactive power sources so as to minimize the loss and to enhance the voltage. Various mathematical techniques have been adopted to solve this optimal reactive power dispatch problem. These include the gradient method [1,2], Newton method [3] and linear programming [4,5,6,7].The gradient and Newton methods suffer from the difficulty in handling inequality constraints. In this paper, Enriched Black Hole (EBH) algorithm utilized for solving reactive power problem. The performance of Enriched Black Hole (EBH) algorithm has been evaluated in Standard IEEE 57,118 bus systems & the results analysis shows that our proposed approach outperforms all approach explored in this paper
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