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Impedance-based harmonics compensation with accurate harmonic power sharing in distorted microgrids

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Abstract
This paper presents an enhanced compensation strategy for distributed generation (DG) systems to simultaneously achieve
accurate power sharing and harmonics compensation at the point of common coupling (PCC). In the proposed control strategy,the output impedance is modified at the fundamental and harmonic frequencies to compensate for the line impedance mismatches among DG units, which results in accurate power sharing. In addition, load harmonic currents are effectively adjusted by the DG units to effectively compensate the PCC voltage harmonics. Additionally, the DG equivalent impedance is regulated adaptively to ensure accurate harmonic power sharing even in the presence of sudden load changes. Furthermore,
a distributed communication network is adopted instead of a central controller to increase the reliability and stability
of the microgrid system. The proposed control strategy is applied to a prototype microgrid system, and its effectiveness and reliability are experimentally validated.
Author(s)
이홍희팜 민 득
Issued Date
2021
Type
Article
Keyword
Harmonic power sharingPCC harmonics compensationIslanded microgridPCC voltage distortion
DOI
10.1007/s43236-020-00192-7
URI
https://oak.ulsan.ac.kr/handle/2021.oak/9008
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_nrf_kci_oai_kci_go_kr_ARTI_9734646&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Impedance-based%20harmonics%20compensation%20with%20accurate%20harmonic%20power%20sharing%20in%20distorted%20microgrids&offset=0&pcAvailability=true
Publisher
Journal of Power Electronics
Location
독일
Language
영어
ISSN
1598-2092
Citation Volume
21
Citation Number
2
Citation Start Page
427
Citation End Page
437
Appears in Collections:
Engineering > Electrical engineering
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