Assessing Impact of Optimally Placed Power Factor Correction Capacitors Reckoning Transient Switching Events
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RESEARCH ARTICLE-ELECTRICAL ENGINEERING
Assessing Impact of Optimally Placed Power Factor Correction Capacitors Reckoning Transient Switching Events A. A. Al-Muhanna1 · M. A. Abido1,2 · F. S. Al-Ismail1,2,3 Received: 9 March 2020 / Accepted: 4 October 2020 © King Fahd University of Petroleum & Minerals 2020
Abstract Installing capacitors to correct the power factor at particular locations is one way to enhance power system reliability. This paper offers a new formulation to address the issue of optimal placing capacitors. The proposed formulation considers reliability impact, in addition to the transient switching events. This is reflected in the cost minimization objective function, where the reliability calculations are considered to gauge the impact when capacitors are installed in the power system. The formulated problem is solved using genetic algorithm (GA), to minimize costs of capacitor installation, energy loss and failure impact. The new formulation has been examined on a test network for evaluating how effective the proposed approach is. The solution also considers the impact of uncertainties as well as future growth in the system, to ensure that it is optimal. The results evidence that the proposed approach is robust and effective in enhancing system reliability in the face of uncertainties and for future growth. Keywords Power factor correction · Shunt capacitors · Damping reactors · Energy loss minimization · Transient switching · Genetic algorithm · Monte Carlo simulation · Failure rate and reliability analysis
1 Introduction Capacitors to correct power factor are installed for regulating voltage in electrical systems, and to minimize power and energy loss, besides avoiding penalties on account of tariff regulatory norms. However, these power factor correction capacitors will lead to a reliability impact on power systems. The world over, tariff requirements have compelled engineers to investigate optimal capacitor placement. Given
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F. S. Al-Ismail [email protected] A. A. Al-Muhanna [email protected] M. A. Abido [email protected]
1
Electrical Engineering Department, College of Engineering, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
2
K.A.CARE Energy Research & Innovation Center (ERIC), King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
3
Center for Environmental & Water, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
the fact that installing power factor correction capacitors in a power system has significant benefits, engineers mostly tend to overlook the reliability aspect. This may significantly impact optimization planning. Reliability calculations have to be taken note of while planning, to make certain that all possible options are considered to provide an effective, robust, and reliable optimized solution in any scenario. Recent research has focused on optimizing power factor correction capacitor installation, in view of recent tariff regulations which only consider the real
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