Grid Voltage Modulated Control of Grid-Connected Voltage Source Inverters under Unbalanced Grid Conditions

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Abstract

In this paper, an improved grid voltage modulated control (GVM) with power compensation is proposed for grid-connected voltage inverters when the grid voltage is unbalanced. The objective of the proposed control is to remove the power ripple and to improve current quality. Three power compensation objectives are selected to eliminate the negative sequence components of currents. The modified GVM method is designed to obtain two separate second-order systems for not only the fast convergence rate of the instantaneous active and reactive powers but also the robust performance. In addition, this method converts the system into a linear invariant system though designing a new voltage input. Simulation results are presented to verify the correctness and validity of the proposed control strategy and power compensation method.
OriginalsprogEngelsk
TitelProceedings of 43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017
Antal sider6
ForlagIEEE Press
Publikationsdatookt. 2017
Sider2510-2515
ISBN (Elektronisk)978-1-5386-1127-2
DOI
StatusUdgivet - okt. 2017
Begivenhed43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017 - Beijing, Kina
Varighed: 29 okt. 20171 nov. 2017

Konference

Konference43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017
Land/OmrådeKina
ByBeijing
Periode29/10/201701/11/2017
SponsorChinese Association of Automation (CAA), Chinese Power Supply Society, et al., IEEE Industrial Electronics Society (IES), Systems Engineering Society of China, The Institute of Electrical and Electronics Engineers (IEEE)

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