Autonomous control of inverter-interfaced Distributed Generation units for harmonic current filtering and resonance damping in an islanded microgrid

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Abstrakt

Harmonic current filtering and resonance damping have become important concerns on the control of an islanded microgrids. To address these challenges, this paper proposes a control method of inverter-interfaced Distributed Generation (DG) units, which can autonomously share harmonic currents and resonance damping burdens. The approach employs a load compensator based on the decomposition of output current, in addition to the outer droop-based power controller, as well as inner voltage and current controllers. The load compensator consists of a virtual fundamental impedance loop for enhanced sharing of reactive power, and a variable harmonic impedance loop which allows to counteract harmonic voltage drops across the grid-side inductance of the DG inverter, and to damp the harmonic resonance propagation throughout a distribution feeder. Experiments on a three-phase microgrid are performed to validate the performance of the proposed control scheme.
OriginalsprogEngelsk
TitelProceedings of the IEEE Energy Conversion Congress and Exposition 2012
ForlagIEEE Press
Publikationsdato2012
Sider211-218
ISBN (Trykt)978-1-4673-0802-1
ISBN (Elektronisk)978-1-4673-0801-4
DOI
StatusUdgivet - 2012
Begivenhedthe Fourth IEEE Energy Conversion Congress and Exposition, ECCE 2012 - Raleigh Convention Center, Raleigh, USA
Varighed: 15 sep. 201220 sep. 2012

Konference

Konferencethe Fourth IEEE Energy Conversion Congress and Exposition, ECCE 2012
LokationRaleigh Convention Center
LandUSA
ByRaleigh
Periode15/09/201220/09/2012

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