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Accurate power sharing and harmonic mitigation scheme for parallel operation of single-phase voltage source inverters

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Abstract
Inaccurate reactive power sharing and voltage distortion at the point of common coupling (PCC) always exist in a parallel
inverter system due to feeder impedance mismatches and nonlinear load disturbances. An enhanced inverter control scheme through an output impedance adjustment is proposed to address these issues. Inverter output impedance is regulated considering
fundamental and harmonic frequencies, and accurate power sharing and improved PCC voltage quality are realized at the steady state. In addition, the compensation scheme is easily applied in multiple parallel inverters without any prior knowledge of the feeder impedance. Experimental results with three parallel inverters validate the feasibility of the proposed control scheme.
Author(s)
이홍희팜 민 득
Issued Date
2021
Type
Article
Keyword
Harmonic mitigationStand-alone operationRenewable energy systemVoltage source inverter
DOI
10.1007/s43236-020-00159-8
URI
https://oak.ulsan.ac.kr/handle/2021.oak/9007
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_nrf_kci_oai_kci_go_kr_ARTI_9917408&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Accurate%20power%20sharing%20and%20harmonic%20mitigation%20scheme%20for%20parallel%20operation%20of%20single-phase%20voltage%20source%20inverters&offset=0&pcAvailability=true
Publisher
Journal of Power Electronics
Location
독일
Language
영어
ISSN
1598-2092
Citation Volume
21
Citation Number
1
Citation Start Page
164
Citation End Page
172
Appears in Collections:
Engineering > Electrical engineering
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