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배전계통 연계형 태양광발전 시스템의 계통연계 하이브리드 변압기 적용에 따른 고조파 저감 시뮬레이션 분석

Title
배전계통 연계형 태양광발전 시스템의 계통연계 하이브리드 변압기 적용에 따른 고조파 저감 시뮬레이션 분석
Other Titles
Analysis of Harmonic Reduction Effects of Grid-Connected Hybrid Transformer on Photovoltaic Power Generation System Connected to Distribution System
Author
고광철
Keywords
Photovoltaic Power Generation System; Hybrid Transformer; Harmonic Reduction
Issue Date
2017-04
Publisher
한국조명.전기설비학회
Citation
조명.전기설비학회논문지, v. 31, no. 4, page. 36-42
Abstract
As the power trading system diversifies and the amount of power generated by the photovoltaic power generation system increases due to its increased efficiency, the number of photovoltaic power generation system connected to power system is on a rising tendency. The harmonic components, produced in the process of connecting the photovoltaic power generation system to the power system, decrease the power quality of the power system and cause malfunctioning on the measuring devices. In this paper, the reduction of harmonic components are simulated using hybrid transformer instead of grid-connected transformer. The hybrid transformer has zig-zag windings and the voltage phase is shifted about 30 degrees. The hybrid transformer is modeled to have the transformation ratio of 370V / 22,900V. Through the simulation, it can be seen that the harmonic components on the voltage is reduced by min. 2% and the harmonic components on the current is reduced by min. 15%. Therefore, the hybrid transformer can be used in protecting the power system from the harmonic components of the photovoltaic power generation system.
URI
http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE07156739&language=ko_KRhttps://repository.hanyang.ac.kr/handle/20.500.11754/113786
ISSN
1229-4691; 2287-5034
DOI
10.5207/JIEIE.2017.31.4.036
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
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