Primary and Secondary Control of Grid Connected Micro Grids using ANFIS Controller
Neethi M1, M. S. Shashikala2
1Neethi M, Department of EEE, Sri Jayachmarajrndra College of Engineering, JSS Science and Technology University, Mysuru, India.
2Dr. M. S. Shashikala, Department of EEE, Sri Jayachmarajrndra College of Engineering, JSS Science and Technology University, Mysuru, India.
Manuscript received on 30 December 2022 | Revised Manuscript received on 06 January 2023 | Manuscript Accepted on 15 January 2023 | Manuscript published on 30 January 2023 | PP: 66-76 | Volume-11 Issue-5, January 2023 | Retrieval Number: 100.1/ijrte.E74340111523 | DOI: 10.35940/ijrte.E7434.0111523
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The microgrid has been defined to cope with the extensive penetration of distributed generation (DGs). The microgrid is capable of operating in grid-connected mode (GC) and islanded mode (IS). In a microgrid, distributed generation (DGs) are always connected to the power network via power inverters. In the Grid-Connected mode, DGs typically act as current-controlled sources to maintain high grid current quality and a fast dynamic response in photovoltaic and wind generation systems. However, current controlled DGs cannot operate independently without the voltage and frequency support from the utility grid. Islanding occurs when a portion of a micro-grid becomes electrically isolated, yet continues to be energized by DGs connected to the isolated subsystem. In islanding mode, the inverter-interfaced DGs work as voltage-controlled sources. As the utility grid does not determine system voltage and frequency, DGs should ensure voltage and frequency stability. Moreover, the power sharing should be guaranteed according to their ratings to avoid circulating currents among DGs. The operation and control of existing utility networks are becoming more and more complex due to the increased interconnection of DG systems with diverse characteristics. This paper aims to address the problems above and propose a suitable control strategy using an ANFIS controller that can be implemented to ensure the successful operation of a microgrid.
Keywords: Microgrid, Distributed generation, islanded mode, ANFIS Controller
Scope of the Article: Distributed Sensor Networks