Article
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Local DER Control with Reduced Loop Interactions in Active Distribution Networks
Version 1
: Received: 25 March 2024 / Approved: 25 March 2024 / Online: 26 March 2024 (13:07:24 CET)
A peer-reviewed article of this Preprint also exists.
Fusco, G.; Russo, M. Local DER Control with Reduced Loop Interactions in Active Distribution Networks. Energies 2024, 17, 1991. Fusco, G.; Russo, M. Local DER Control with Reduced Loop Interactions in Active Distribution Networks. Energies 2024, 17, 1991.
Abstract
The Active Distribution Networks (ADNs) are Multi-Input Multi-Output (MIMO) systems with coupled dynamics which cause interactions among the control loops of the Distributed Energy Resources (DERs). This undesired effect lead to performance degradation in the voltage control. To mitigate the effects of these unavoidable coupling, the present paper proposes a systematic design procedure based on the analysis of the interaction's sources. In details, each DER is equipped with a double loop PI to control the active and reactive powers output by the Voltage Source Converter (VSC) which connects the DER to the network's node. Furthermore, to guarantee Ancillary Services (ASs), the two loops are coupled by a simple mechanism of cooperation of the active power to voltage regulation realized by a filtered droop law. To achieve voltage regulation with reduced loop interactions, the PI parameters and the filter's pulse are designed according to a two sequential steps procedure based on the (Internal Model Control) IMC technique. Simulation studies are finally presented to demonstrate that the proposed design method achieves both reduction of the loop interaction and robust voltage control in presence of model parameter uncertainty in the MIMO model.
Keywords
decentralized voltage control; MIMO models; IMC technique; loops interaction; active power support to voltage regulation; robustness; simulations
Subject
Engineering, Electrical and Electronic Engineering
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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