Negative-sequence voltage elimination for distributed generators in grid-feeding operation mode
| Autor: | Pau Marti, Eduardo Mojica-Nava, Jaume Miret, Juan M. Rey, Manel Velasco, Miguel Castilla |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica, Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial, Universitat Politècnica de Catalunya. SEPIC - Sistemes Electrònics de Potència i de Control |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Computer science
020209 energy 02 engineering and technology Transfer function Electric current control Reguladors de voltatge law.invention Distributed power generation Power generation control Reguladors elèctrics -- Control automàtic Closed loop systems law Control theory Transfer functions Power convertors 0202 electrical engineering electronic engineering information engineering Enginyeria elèctrica::Distribució d’energia elèctrica [Àrees temàtiques de la UPC] Electrical and Electronic Engineering Voltage regulators Flowchart Enginyeria electrònica::Electrònica de potència::Circuits de potència [Àrees temàtiques de la UPC] business.industry Electric power distribution 020208 electrical & electronic engineering Power grids Power supply quality Converters Grid Control system synthesis Power system stability Power (physics) Flowcharting Distributed generation Control system Switching convertors Energia elèctrica -- Distribució business |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| Popis: | © 2020 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. A major concern of the power quality in distributed systems is related to the mitigation of voltage imbalances. This function can be implemented directly in the control system of the distributed generation power converters working simultaneously with the standard operation modes. This study presents a negative-sequence voltage elimination technique for distributed generators in grid-feeding operation mode. The proposal guarantees a complete elimination of the negativesequence voltage, while operating without a priori in-depth knowledge of the grid configuration and its characteristics. The proposed control architecture is presented together with its pseudocode, a controller flowchart and a discussion of the implementation aspects. A closed-loop modelling is derived based on a complex transfer function approach, which is used to determine stability margins and control design guidelines. A laboratory setup was implemented to verify the performance of the proposed strategy. This work was supported by the Ministry of Science, Innovation and Universities of Spain and by the European Regional Development Fund under project RTI2018-100732-B-C22. |
| Databáze: | OpenAIRE |
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