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Accuracy Improvement Method of Energy Storage Utilization with DC Voltage Estimation in Large-Scale Photovoltaic Power Plants

Authors
Yoo, YeuntaeJang, GilsooKim, Jeong-HwanNam, IseulYoon, MinhanJung, Seungmin
Issue Date
10월-2019
Publisher
MDPI
Keywords
PV diagnosis; ESS application; DC power flow; DC system dynamics; hybrid generation system
Citation
ENERGIES, v.12, no.20
Indexed
SCIE
SCOPUS
Journal Title
ENERGIES
Volume
12
Number
20
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/62595
DOI
10.3390/en12203907
ISSN
1996-1073
Abstract
In regard to electric devices, currently designed large-scale distributed generation systems require a precise prediction strategy based on the composition of internal component owing to an environmental fluctuating condition and forecasted power variation. A number of renewable resources, such as solar or marine based energies, are made up of a low voltage direct current (DC) network. In addition to actively considering a power compensation plan, these generation systems have negative effects, which can be induced to a connected power system. When a storage is connected to a DC-based generation system on an inner network along with other generators, a precise state analysis plan should back the utilization process. This paper presents a cooperative operating condition, consisting of the shared DC section, which includes photovoltaic (PVs) and energy storage devices. An active storage management plan with voltage-expectation is introduced and compared via a commercialized electro-magnetic transient simulation tool with designed environmental conditions. Owing to their complexity, the case studies were sequentially advanced by dividing state analysis verification and storage device operation.
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공과대학 (전기전자공학부)
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