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A unique mathematical optimization approach for examination of failure effects on electric power transmission grids by combined environmental and economic indicators

Ali Azadeh (School of Industrial and Systems Engineering, Center of Excellence for Intelligent-Based Experimental Mechanic, College of Engineering, University of Tehran, Tehran, Iran)
Maryam Sattarian (School of Industrial and Systems Engineering, Center of Excellence for Intelligent-Based Experimental Mechanic, College of Engineering, University of Tehran, Tehran, Iran)
Azadeh Arjmand (KN Toosi University of Technology, Tehran, Iran)

World Journal of Engineering

ISSN: 1708-5284

Article publication date: 12 June 2017

Abstract

Purpose

To achieve the optimum performance of electric transmission power system performance, the possibility of generators’ failure and the consequences are amongst the most important and real assumptions which should be taken into consideration. This paper aims to recognize the most influential factors on generators’ failures that can have a deep effect on the total cost and environmental issues. The integrated proposed approach is useful for investigating the generators’ failure effects on the performance of electric power transmission grids from the economic and environmental perspectives. In other words, the cost and pollution minimization policies are considered to decrease the unfavorable generators’ failure effects on electric power flow.

Design/methodology/approach

The data used in this study are gathered from a real case in USA in first step, the influential generator points that their failure has a significant effect on the objective function, have been recognized. Then, different failure scenarios are defined, and the optimum values in each of these scenarios through the GAMS modeling software are found. Consequently, by using a two-level factorial design approach, the critical generators across the power grid are determined.

Findings

The results show that by using such information, it is possible to detect the significant nodes in the power system grid and have a better maintenance plan. In addition, by means of this analysis and changing the capacity of main generators, it is possible to significantly reduce the operation costs. By comparing the indexes in case of the generator’s location, it seems that some of them are critical because of their capacity and position in the network (as their failure causes infeasibility in the model). Also, some of these deficiencies caused considerable index changes and critical consequences.

Practical implications

The integrated proposed approach is useful for investigating the generators’ failure effects on the performance of electric power transmission grids from the economic and environmental perspectives. In other words, the cost and pollution minimization policies are considered to decrease the unfavorable generators’ failure effects on electric power flow.

Social implications

This paper endeavors to recognize the most influential factors on generators’ failures that can have a deep effect on the total cost and environmental issues.

Originality/value

The integrated proposed approach is useful for investigating the generators’ failure effects on the performance of electric power transmission grids from the economic and environmental perspectives. In other words, the cost and pollution minimization policies are considered to decrease the unfavorable generators’ failure effects on electric power flow.

Keywords

Acknowledgements

The authors are grateful for the valuable comments and suggestions by the respected reviewers, which have enhanced the strength and significance of this work. This study was supported by a grant from College of Engineering, University of Tehran, Iran [grant number 8106013/1/17]. The authors are grateful for the financial support provided by College of Engineering, University of Tehran.

Citation

Azadeh, A., Sattarian, M. and Arjmand, A. (2017), "A unique mathematical optimization approach for examination of failure effects on electric power transmission grids by combined environmental and economic indicators", World Journal of Engineering, Vol. 14 No. 3, pp. 237-248. https://doi.org/10.1108/WJE-11-2016-0136

Publisher

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Emerald Publishing Limited

Copyright © 2017, Emerald Publishing Limited