Decoupled simultaneous complex power sharing and voltage regulation in islanded AC microgrids
| Autor: | Josue Duarte, Manel Velasco, Pau Marti, Antonio Camacho, Jaume Miret, Carlos Alfaro |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Doctorat en Automàtica, Robòtica i Visió, Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial, Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica, Universitat Politècnica de Catalunya. Doctorat en Enginyeria Electrònica, Universitat Politècnica de Catalunya. SEPIC - Sistemes Electrònics de Potència i de Control |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Energies::Energia elèctrica::Automatització i control de l'energia elèctrica [Àrees temàtiques de la UPC]
Voltage source inverters Islanded microgrid Line impedance mismatch Microxarxes (Xarxes elèctriques intel·ligents) Microgrids (Smart power grids) Electric current converters Reguladors de voltatge Electric controllers Control and Systems Engineering Reguladors elèctrics Enginyeria electrònica::Electrònica de potència [Àrees temàtiques de la UPC] Electrical and Electronic Engineering Voltage regulators Complex power sharing |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| DOI: | 10.1109/TIE.2022.3179553 |
| Popis: | © 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. In islanded AC microgrids, when multiple voltage source inverters (VSIs) operate in parallel, it is challenging to simultaneously obtain both accurate complex (active and reactive) power sharing and voltage regulation (in terms of frequency and amplitude). State-of-the-art strategies that target these two objectives often rely on hierarchical primary droop plus communication-based both secondary controls and adaptive virtual impedance methods. However, control dynamics and/or accuracy are still affected by inverters line impedances mismatches. To overcome these limitations, this paper presents for balanced AC microgrids a distributed control strategy that simultaneously guarantees both voltage regulation and accurate power sharing. The distributed strategy is based on having at each VSI a single controller that merges two control loops that can be designed in isolation, thus decoupling the design of the power sharing control from the design of the voltage control. The cooperative operation of all VSI controllers, that requires exchanging control data over a communication network, ensures meeting both control objectives with independence of the line impedance mismatches or the connection and disconnection of inverters and loads. And these properties are achieved without changing the controller structure and (easy-to-tune) parameters nor increasing the control effort. Experimental results corroborate the control proposal. This work was partially supported by I+D+i RTI2018-100732-B-C22 re-search project, financed by MCIN/AEI/10.13039/501000011033 and FEDER“Una manera de hacer Europa”. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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