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Reducing Voltage Volatility with Step Voltage Regulators: A Life-Cycle Cost Analysis of Korean Solar Photovoltaic Distributed Generation

Title
Reducing Voltage Volatility with Step Voltage Regulators: A Life-Cycle Cost Analysis of Korean Solar Photovoltaic Distributed Generation
Authors
JEONG, YUCHEOLLEE, EUL BUMAlleman, Douglas
POSTECH Authors
LEE, EUL BUM
Date Issued
Feb-2019
Publisher
MDPI AG
Abstract
To meet the United Nation’s sustainable development energy goal, the Korean Ministry of Commerce announced they would increase renewable energy generation to 5.3% by 2029. These energy sources are often produced in small-scale power plants located close to the end users, known as distributed generation (DG). The use of DG is an excellent way to reduce greenhouse gases but has also been found to reduce power quality and safety reliability through an increase in voltage volatility. This paper performs a life-cycle cost analysis on the use of step voltage regulators (SVR) to reduce said volatility, simulating the impact they have on existing Korean solar photovoltaic (PV) DG. From the data collected on a Korean Electrical Power Corporation 30 km/8.2 megawatts (MW) feeder system, SVRs were found to increase earnings by one million USD. SVR volatile voltage mitigation increased expected earnings by increasing the estimated allowable PV power generation by 2.7 MW. While this study is based on Korean PV power generation, its findings are applicable to any DG sources worldwide.
URI
http://oasis.postech.ac.kr/handle/2014.oak/94658
DOI
10.3390/en12040652
ISSN
1996-1073
Article Type
Article
Citation
Energies, vol. 12, no. 4, page. 652, 2019-02
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 LEE, EUL BUM
Graduate Institute of Ferrous Technology
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