Coordinated Control of Distributed Three- and Single-Phase Inverters Connected to Three-Phase Three-Wire Microgrids

Author(s)

Brandao, Danilo I. ^[1] ; Araujo, Lucas S. ^[1] ; Alonso, Augusto M. S. ^{[2, 3]} ; dos Reis, Geovane L. ^[1] ; Liberado, Eduardo V. ^[4] ; Marafao, Fernando P. ^[2]

Affiliation

^[1] Fed Univ Minas Gerais UFMG, Grad Program Elect Engn, BR-31270901 Belo Horizonte, MG - Brazil

^[2] Sao Paulo State Univ UNESP, Grp Automat & Integrated Syst, BR-18087180 Belo Horizonte - Brazil

^[3] Norwegian Univ Sci & Technol NTNU, Dept Elect Power Engn, N-7491 Trondheim - Norway

^[4] Sao Paulo State Univ UNESP, Grp Bioenergy & Sustainable Energies Biojoule, Campus Rosana, BR-18087180 Sao Paulo - Brazil

• Document type: Journal article
• Source: IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS; v. 8, n. 4, p. 3861-3877, DEC 2020.
• Web of Science Citations: 0

Abstract

This paper explores the coordinated strategy named power-based control (PBC) to properly coordinate grid-tied single- and three-phase distributed energy resources (DERs) in three-phase three-wire microgrids (MGs). By means of a narrowband, low data rate communication, such strategy accommodates current- and voltage-controlled distributed inverters providing proportional sharing of active, reactive, and unbalanced (negative-sequence) power terms, also offering dispatchable power flow and high power quality (PQ) at the MGs point of common coupling (PCC). Regarding the current unbalanced compensation, a particular case considering two distributed single-phase inverters is discussed through mathematical analysis in terms of balanced and unbalanced power terms, and experimental results on which the PBC is applied to demonstrate that this strategy corroborates with Steinmetz principle. Finally, the complete strategy is evaluated in simulation considering the model of a real urban power distribution grid under typical operational conditions. (AU)

• FAPESP's process: 17/24652-8 - Development of a methodology for cooperative control of distributed generators in microgrids with multiple operational considerations
• Grantee: Augusto Matheus dos Santos Alonso
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 16/08645-9 - Interdisciplinary research activities in electric smart grids
• Grantee: João Bosco Ribeiro do Val
• Support Opportunities: Research Projects - Thematic Grants