An Islanded Microgrid Droop Control using Henry Gas Solubility Optimization
Mohamed A. Ebrahim1, Reham M. Abdel Fattah2, Ebtisam M. Saied3, Samir M. Abdel Maksoud4, Hisham El Khashab5

1Mohamed A. Ebrahim*, Department of  Electrical Engineering, Faculty of Engineering at Shoubra, Benha University, Cairo, Egypt.
2Reham M. Abdel Fattah, Department of  Power Electronics and Energy Conversion, Electronics Research Institute, Cairo Egypt.
3Ebtisam M. Saied, Department of Electrical Engineering, Faculty of Engineering at Shoubra, Benha University, Cairo, Egypt and Electrical Engineering Department-High Technological Institute (HTI)10th of Ramadan City-Egypt.
4Samir M. Abdel Maksoud*, Department of  Electrical Engineering, Faculty of Engineering at Shoubra, Benha University, Cairo, Egypt.
5Hisham El Khashab, Department of  Power Electronics and Energy Conversion Electronics Research Institute, Cairo Egypt. 

Manuscript received on December 10, 2020. | Revised Manuscript received on January 05, 2020. | Manuscript published on January 10, 2021. | PP: 43-48 | Volume-10 Issue-3, January 2021 | Retrieval Number: 100.1/ijitee.C83650110321| DOI: 10.35940/ijitee.C8365.0110321
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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: Coordination of various distributed generation (DG) units is required to meet the growing demand for electricity. Several control strategies have been developed to operate parallel-connected inverters for microgrid load sharing. Among these techniques, due to the lack of essential communication links between parallel-connected inverters to coordinate the DG units within a microgrid, the droop control method has been generally accepted in the scientific community. This paper discusses the microgrid droop controller during islanding using the Henry Gas Solubility Optimization (HGSO). The most important goals of droop control in the islanded mode of operation are the frequency and voltage control of microgrid and proper power sharing between distributed generations. The droop controller has been designed using HGSO to optimally choose PI gains and droop control coefficients in order to obtain a better microgrid output response during islanding. Simulation results indicate that the droop controller using HGSO improves the efficiency of micro-grid power by ensuring that variance in microgrid frequency and voltage regulation and effective power sharing occurs whenever micro-grid island mode or when variation in load occurs. 
Keywords: Distributed generator, Droop control, Henry Gas Solubility Optimization, Microgrid.