Control Scheme for Negative-Sequence Voltage Compensation and Current Sharing in Inverter-Based Grid-Connected Microgrids
| Autor: | Miguel Castilla, Jaume Miret, Ramon Guzmán, Manuel Velasco, Angel Borrell |
|---|---|
| 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 |
| Rok vydání: | 2022 |
| Předmět: |
Energies::Energia elèctrica::Automatització i control de l'energia elèctrica [Àrees temàtiques de la UPC]
Power quality Microxarxes (Xarxes elèctriques intel·ligents) Microgrids (Smart power grids) Power electronics Enginyeria electrònica::Electrònica de potència [Àrees temàtiques de la UPC] Three-phase inverter Voltage compensation Electrònica de potència Electrical and Electronic Engineering Current sharing Voltage-controlled oscillators Oscil·ladors de voltatge controlat |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| ISSN: | 1941-0107 0885-8993 2018-1000 |
| DOI: | 10.1109/tpel.2022.3140808 |
| Popis: | © 2021 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. This paper presents a control scheme that simultaneously solves the problems of negative-sequence voltage compensation and negative-sequence current sharing in grid-connected microgrids using grid-feeding inverters. State-of-the-art schemes have previously solved these problems with low-performance control solutions or, alternatively, with high-performance solutions but paying the cost of high control-data traffic in the communication network. The proposed control scheme improves the performance of previous schemes for grid-feeding inverters with the following characteristics: 1) negative-sequence voltage compensation at any point of the microgrid, 2) accurate negativesequence current sharing, and 3) low control-data traffic. In terms of implementation, two key points of the proposed control scheme are: the voltage compensation is based on a band-pass filter with complex coefficients and the current sharing is reached only with local current measurements. In the theoretical analysis, the system model is based on transfer functions with complex coefficients. This fact facilitates the control design due to 1) the system model is linear in this complex domain and 2) the multiple-input singleoutput model can be represented as a single-input single-output model for voltage compensation. The characteristics of the proposed control are validated by means of experimental results measured in a laboratory microgrid. This work is part of the project I+D+I RTI2018-1000732-B-C22, funded by MCIN/AEI/10.13039/501000011033 and FEDER “A way to make Europe”. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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