Mode Adaptive Droop Control with Virtual Output Impedances for an Inverter-Based Flexible AC Microgrid

Jaehong  Kim; Josep M.  Guerrero; Pedro Rodriguez; Remus Teodorescu; Kwanghee Nam

doi:10.1109/TPEL.2010.2091685

Mode Adaptive Droop Control with Virtual Output Impedances for an Inverter-Based Flexible AC Microgrid

Jaehong Kim, Josep M. Guerrero, Pedro Rodriguez, Remus Teodorescu, Kwanghee Nam

AAU Energy

Research output: Contribution to journal › Journal article › Research › peer-review

480 Citations (Scopus)

Abstract

A decentralized power control method in a single-phase °exible AC microgrid is proposed in this paper. Droop control is widely considered to be a good choice for managing the power flows between microgrid converters in a decentralized manner. In this work, to enhance the power loop dynamics, droop control combined with a derivative controller is used in islanded mode. In grid- connected mode, to strictly control the power factor in the point of common coupling (PCC), a droop method combined with an integral controller is adopted. Small-signal analysis of the proposed control is shown both in islanded and grid-connected mode. The proposed control scheme does not need any mode switching action. Thus, it is relatively simple in control for full mode of operation. Smooth transitions between the operation modes and the effectiveness of the proposed control scheme are evaluated through simulation and experimental results.

Original language	Swedish
Journal	I E E E Transactions on Power Electronics
Volume	26
Issue number	3
Pages (from-to)	689-701
ISSN	0885-8993
DOIs	https://doi.org/10.1109/TPEL.2010.2091685
Publication status	Published - 2011

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Cite this

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title = "Mode Adaptive Droop Control with Virtual Output Impedances for an Inverter-Based Flexible AC Microgrid",

abstract = "A decentralized power control method in a singlephase flexible acmicrogrid is proposed in this paper. Droop control is widely considered to be a good choice for managing the power flows between microgrid converters in a decentralized manner. In this work, to enhance the power loop dynamics, droop control combined with a derivative controller is used in islanded mode. In grid-connected mode, to strictly control the power factor in the point of common coupling (PCC), a droop method combined with an integral controller is adopted. Small-signal analysis of the proposed control is shown both in islanded and grid-connected mode. The proposed control scheme does not need any mode switching action. Thus, it is relatively simple in control for full mode of operation. Smooth transitions between the operation modes and the effectiveness of the proposed control scheme are evaluated through simulation and experimental results.",

author = "Jaehong Kim and Guerrero, {Josep M.} and Pedro Rodriguez and Remus Teodorescu and Kwanghee Nam",

year = "2011",

doi = "10.1109/TPEL.2010.2091685",

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AU - Rodriguez, Pedro

AU - Teodorescu, Remus

AU - Nam, Kwanghee

PY - 2011

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N2 - A decentralized power control method in a singlephase flexible acmicrogrid is proposed in this paper. Droop control is widely considered to be a good choice for managing the power flows between microgrid converters in a decentralized manner. In this work, to enhance the power loop dynamics, droop control combined with a derivative controller is used in islanded mode. In grid-connected mode, to strictly control the power factor in the point of common coupling (PCC), a droop method combined with an integral controller is adopted. Small-signal analysis of the proposed control is shown both in islanded and grid-connected mode. The proposed control scheme does not need any mode switching action. Thus, it is relatively simple in control for full mode of operation. Smooth transitions between the operation modes and the effectiveness of the proposed control scheme are evaluated through simulation and experimental results.

AB - A decentralized power control method in a singlephase flexible acmicrogrid is proposed in this paper. Droop control is widely considered to be a good choice for managing the power flows between microgrid converters in a decentralized manner. In this work, to enhance the power loop dynamics, droop control combined with a derivative controller is used in islanded mode. In grid-connected mode, to strictly control the power factor in the point of common coupling (PCC), a droop method combined with an integral controller is adopted. Small-signal analysis of the proposed control is shown both in islanded and grid-connected mode. The proposed control scheme does not need any mode switching action. Thus, it is relatively simple in control for full mode of operation. Smooth transitions between the operation modes and the effectiveness of the proposed control scheme are evaluated through simulation and experimental results.

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