Performance Comparison of Grid-Faulty Control Schemes for Inverter-Based Industrial Microgrids

Antonio Camacho, Miguel Castilla, Franco Canziani, Carlos Moreira, Paulo Coelho, Mario Gomes and Pedro E. Mercado
Additional contact information
Antonio Camacho: Department of Electronic Engineering, Universitat Politècnica de Catalunya, 08800 Vilanova i la Geltrú, Spain
Miguel Castilla: Department of Electronic Engineering, Universitat Politècnica de Catalunya, 08800 Vilanova i la Geltrú, Spain
Franco Canziani: Waira Energia SAC, Av. Guillermo Dansey 1685, Lima 1, Lima, Peru
Carlos Moreira: INESC Technology and Science, Campus da FEUP, 4200-465 Porto, Portugal
Paulo Coelho: Instituto Politécnico de Tomar, 2300-313 Tomar, Portugal
Mario Gomes: Instituto Politécnico de Tomar, 2300-313 Tomar, Portugal
Pedro E. Mercado: Institute of Electrical Energy, Universidad Nacional de San Juan, J5400ARL San Juan, Argentina

Energies, 2017, vol. 10, issue 12, 1-25

Abstract: Several control schemes specifically designed to operate inverter-based industrial microgrids during voltage sags have been recently proposed. This paper first classifies these control schemes in three categories and then performs a comparative analysis of them. Representative control schemes of each category are selected, described and used to identify the main features and performance of the considered category. The comparison is based on the evaluation of several indexes, which measure the power quality of the installation and utility grid during voltage sags, including voltage regulation, reactive current injection and transient response. The paper includes selected simulation results from a 500 kVA industrial microgrid to validate the expected features of the considered control schemes. Finally, in view of the obtained results, the paper proposes an alternative solution to cope with voltage sags, which includes the use of a static compensator in parallel with the microgrid. The novelty of this proposal is the suitable selection of the control schemes for both the microgrid and the static compensator. The superior performance of the proposal is confirmed by the analysis of the quality indexes. Its practical limitations are also revealed, showing that the topic studied in this paper is still open for further research.

Keywords: industrial microgrid; voltage sag; control scheme; power inverter; power quality (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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