Peer-to-Peer-Based Power Flow Control in Microgrids With Limited Voltage Harmonic Distortion

This paper proposes a novel primary level controller and coupling LCL filter design methodology for microgrid prosumer units The so-called decentralized peer-to-peer-based power flow control algorithm introduces a power exchange communication link between two contractees, namely a prosumer unit and...

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Main Authors: Stevan Grabic, Marko Vekic, Milan Rapaic, Ivana Isakov, Vlado Porobic
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10313284/
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author Stevan Grabic
Marko Vekic
Milan Rapaic
Ivana Isakov
Vlado Porobic
author_facet Stevan Grabic
Marko Vekic
Milan Rapaic
Ivana Isakov
Vlado Porobic
author_sort Stevan Grabic
collection DOAJ
description This paper proposes a novel primary level controller and coupling LCL filter design methodology for microgrid prosumer units The so-called decentralized peer-to-peer-based power flow control algorithm introduces a power exchange communication link between two contractees, namely a prosumer unit and any other unit, on the time scales of primary power flow controller. This can be regarded as feed-forwarding of power flow information between the units in close to real-time in order to attain almost instant power balancing within the system. When coupled with the conventional voltage and frequency droop primary control, as presented in the paper, and tested on a simulation model of one radial microgrid in the off-grid mode of operation, it showed enhanced static and dynamic performance. The study also investigated adverse influence of the communication link time delay. The paper addressed prosumer units microgrid voltage-forming role by proposing design and control methodology for the prosumer units’ LCL coupling filter. To that aim, thorough voltage and current harmonic emission analysis has been conducted, taking into account realistic span of a microgrid parameters’ values and presence of other units. The study and the simulation model tests revealed that the limited total voltage harmonic distortion becomes critical requirement in the off-grid model of operation.
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spelling doaj.art-2ba3bdf4748c4c809c596acdc7d886b42023-11-24T00:01:31ZengIEEEIEEE Access2169-35362023-01-011113062713064310.1109/ACCESS.2023.333156710313284Peer-to-Peer-Based Power Flow Control in Microgrids With Limited Voltage Harmonic DistortionStevan Grabic0https://orcid.org/0000-0002-2682-0686Marko Vekic1https://orcid.org/0000-0002-7568-1432Milan Rapaic2https://orcid.org/0000-0003-0598-0979Ivana Isakov3https://orcid.org/0000-0001-9742-0594Vlado Porobic4https://orcid.org/0000-0002-9829-7230Faculty of Technical Sciences, University of Novi Sad, Novi Sad, SerbiaFaculty of Technical Sciences, University of Novi Sad, Novi Sad, SerbiaFaculty of Technical Sciences, University of Novi Sad, Novi Sad, SerbiaFaculty of Technical Sciences, University of Novi Sad, Novi Sad, SerbiaFaculty of Technical Sciences, University of Novi Sad, Novi Sad, SerbiaThis paper proposes a novel primary level controller and coupling LCL filter design methodology for microgrid prosumer units The so-called decentralized peer-to-peer-based power flow control algorithm introduces a power exchange communication link between two contractees, namely a prosumer unit and any other unit, on the time scales of primary power flow controller. This can be regarded as feed-forwarding of power flow information between the units in close to real-time in order to attain almost instant power balancing within the system. When coupled with the conventional voltage and frequency droop primary control, as presented in the paper, and tested on a simulation model of one radial microgrid in the off-grid mode of operation, it showed enhanced static and dynamic performance. The study also investigated adverse influence of the communication link time delay. The paper addressed prosumer units microgrid voltage-forming role by proposing design and control methodology for the prosumer units’ LCL coupling filter. To that aim, thorough voltage and current harmonic emission analysis has been conducted, taking into account realistic span of a microgrid parameters’ values and presence of other units. The study and the simulation model tests revealed that the limited total voltage harmonic distortion becomes critical requirement in the off-grid model of operation.https://ieeexplore.ieee.org/document/10313284/Microgridpeer-to-peer power flowdecentralized controldroop controllimited voltage and current THDLCL filter design
spellingShingle Stevan Grabic
Marko Vekic
Milan Rapaic
Ivana Isakov
Vlado Porobic
Peer-to-Peer-Based Power Flow Control in Microgrids With Limited Voltage Harmonic Distortion
IEEE Access
Microgrid
peer-to-peer power flow
decentralized control
droop control
limited voltage and current THD
LCL filter design
title Peer-to-Peer-Based Power Flow Control in Microgrids With Limited Voltage Harmonic Distortion
title_full Peer-to-Peer-Based Power Flow Control in Microgrids With Limited Voltage Harmonic Distortion
title_fullStr Peer-to-Peer-Based Power Flow Control in Microgrids With Limited Voltage Harmonic Distortion
title_full_unstemmed Peer-to-Peer-Based Power Flow Control in Microgrids With Limited Voltage Harmonic Distortion
title_short Peer-to-Peer-Based Power Flow Control in Microgrids With Limited Voltage Harmonic Distortion
title_sort peer to peer based power flow control in microgrids with limited voltage harmonic distortion
topic Microgrid
peer-to-peer power flow
decentralized control
droop control
limited voltage and current THD
LCL filter design
url https://ieeexplore.ieee.org/document/10313284/
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