A proportional harmonic power sharing scheme for hierarchical controlled microgrids considering unequal feeder impedances and nonlinear loads

Hong Li, Yang Han, Ping Yang, Jingqi Xiong, Congling Wang, Josep M. Guerrero

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7 Citationer (Scopus)

Abstract

This paper presents a proportional harmonic power sharing (PHPS) control scheme to improve the voltage quality at point of common coupling (PCC) and share harmonic power simultaneously for an islanded microgrid. The proposed control strategy employs P+ multiple resonant controller, and P+ plus Q+-based improved droop control scheme to improve the voltage quality at the load bus. Additionally, the second-order generalized integrators (SOGI) filtering model-based virtual harmonic impedance is utilized to minimize the influence of an islanded microgrid under mismatched line impedance and nonlinear load distribution conditions. Furthermore, the hierarchical harmonic power controller is used to share the individual harmonic powers proportionally, and the circulating currents can also be significantly decreased. Finally, the simulation results are provided to validate the effectiveness of the proposed PHPS control scheme for islanded microgrids under unequal feeder impedance and nonlinear loads conditions.

OriginalsprogEngelsk
Titel2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
Antal sider6
Vol/bind2017-January
ForlagIEEE
Publikationsdato3 nov. 2017
Sider3722-3727
Artikelnummer8096658
ISBN (Elektronisk)9781509029983
DOI
StatusUdgivet - 3 nov. 2017
Begivenhed9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 - Cincinnati, USA
Varighed: 1 okt. 20175 okt. 2017

Konference

Konference9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017
Land/OmrådeUSA
ByCincinnati
Periode01/10/201705/10/2017
SponsorIEEE Industry Applications Society (IAS), IEEE Power Electronics Society (PELS)

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