Research Article | OPEN ACCESS
An Optimal Design of Substation Grounding Grid Considering Economic Aspects Using Particle Swarm Optimization
1Navid Khorasani Nezhad, 1Mohammad Hadi Fallahi and 2Mehdi Ghazavi Dozein
1Young Researchers Club, Shoushtar Branch, Islamic Azad University, Shoushtar, Iran
2ECE Department, College of Engineering, University of Tehran, Tehran, Iran
Research Journal of Applied Sciences, Engineering and Technology 2013 12:2159-2165
Received: December 07, 2012 | Accepted: January 19, 2013 | Published: July 30, 2013
Abstract
Design of a safety grounding system is an important part of substation design in power systems. An appropriate designed grounding system ensures the adequate safety for people and protects the installation. Also, due to increasing the electrical equipment price and cost of land, the implementation of grounding system is faced with restrictions. Therefore, the design of optimal substation grounding grid considering the practical limits such as economic aspects is one of the important problem in system designing. This study presents to design an optimal grounding grid considering the economic aspects of designing. In this study, the number and diameters of conductors and rods which can carry the fault current, space between conductors for having the safety factors, the depth of burring the grounding system and investment cost are considered as parameters which affected on total cost of grounding system. Also to conducting the simulation to finding the best parameters of grounding grid to be optimum in all aspects, the Particle Swarm Optimization (PSO) algorithm is employed. Finally, the PSO is applied to a typical grounding system in two different scenarios and the results are compared to each other.
Keywords:
Equivalent circuit, grounding grid, objective function, particle swarm optimization, step voltage, touch voltage,
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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