Grid-forming controller based on virtual admittance for power converters working in weak grids
| Autor: | Jose David Vidal Leon, Andres Tarraso, Jose Ignacio Candela, Joan Rocabert, Pedro Rodriguez |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Doctorat en Sistemes d'Energia Elèctrica, Universitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica, Universitat Politècnica de Catalunya. SEER - Sistemes Elèctrics d'Energia Renovable |
| Rok vydání: | 2023 |
| Předmět: |
Island mode
Enginyeria electrònica::Electrònica de potència [Àrees temàtiques de la UPC] Grid connected converter (GCC) Modeling Virtual admittance Electric power system stability Current control General Medicine Sistemes de distribució d'energia elèctrica -- Estabilitat Energies renovables Renewable energy sources |
| Zdroj: | IEEE Journal of Emerging and Selected Topics in Industrial Electronics. :1-11 |
| ISSN: | 2687-9743 2687-9735 |
| Popis: | ©2023 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. The high penetration of distributed energy resources, based on power electronics, is giving rise to stability issues in the electrical network, as initially those plants were not required to provide either voltage or frequency support. Due to this, transmission system operators (TSOs) and distribution system operators (DSOs) have set new requirements for them to provide grid support functionalities. This article presents a grid forming control strategy for power converters which is based on a virtual admittance loop. By means of this strategy it is possible to use a conventional current control based inverter, just adding this outer loop. By doing so, the converter is not only able to perform current control, but also frequency and voltage support functionalities. In this article, the proposed control is described and analyzed, checking as well its stability boundaries. After this analysis, the results obtained in a hardware-in-the-loop platform, where faulty scenarios, islanding or black start conditions, will be shown. Finally, the results obtained in an experimental true scale workbench will show its effectiveness for providing such services. This work was supported in part by LC-SC3-ES5-2018-2020-INTERRFACE project under Grant GA 824330 and in part by FlexiGRID project under Grant RTI2018-100921-B-C21. |
| Databáze: | OpenAIRE |
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