Load prioritization technique to guarantee the continuous electric supply for essential loads in rural microgrids

Rajbhandari, Yaju; Marahatta, Anup; Shrestha, Ashish; Gachhadar, Anand; Thapa, Anup; Gonzalez-Longatt, Francisco; Guerrero, Josep M.; Korba, Petr

doi:10.1016/j.ijepes.2021.107398

Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-26758

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Load prioritization technique to guarantee the continuous electric supply for essential loads in rural microgrids
Authors:	Rajbhandari, Yaju Marahatta, Anup Shrestha, Ashish Gachhadar, Anand Thapa, Anup Gonzalez-Longatt, Francisco Guerrero, Josep M. Korba, Petr
et. al:	No
DOI:	10.1016/j.ijepes.2021.107398 10.21256/zhaw-26758
Published in:	International Journal of Electrical Power & Energy Systems
Volume(Issue):	134
Issue:	107398
Issue Date:	2022
Publisher / Ed. Institution:	Elsevier
ISSN:	0142-0615 1879-3517
Language:	English
Subjects:	Demand side management; Microgrid; Rural electrification; Renewable energy
Subject (DDC):	621.3: Electrical, communications, control engineering
Abstract:	Microgrid (MG) is one of the practical and best concepts to provide energy access to rural communities, where electric grid extension is not techno-economically feasible. Since the trend of load consumption is not uniform with a low load factor in a rural area, the required rating of the system becomes very high. Similarly, the generation is fixed for these MGs, whereas the load increases continuously over time. Such a system faces supply deficit issues triggering a high number of interruptions that may cause frequent blackouts. Hence, rolling blackout and load clipping techniques are preferred during the peak load period in most of the rural MGs. These issues lead to an unreliable power supply and low satisfaction level of the user. This paper presents the load prioritization technique to guarantee the continuous supply for the essential loads within the rural community. A day-ahead energy allocation technique is mathematically formulated and optimized to maximize the total hours of energy served. This technique maximized the hours of energy served to the load with higher priority followed by the load with lower priorities. From this study, it is found that the proposed strategy helps to improve the hours of energy served in the overall system, by improving the state of charge (SoC) level of the battery system. The result shows that the user satisfaction level has been improved by 5% through 100% of continuity for the essential loads.
URI:	https://digitalcollection.zhaw.ch/handle/11475/26758
Fulltext version:	Accepted version
License (according to publishing contract):	CC BY-NC-ND 4.0: Attribution - Non commercial - No derivatives 4.0 International
Departement:	School of Engineering
Organisational Unit:	Institute of Energy Systems and Fluid Engineering (IEFE)
Appears in collections:	Publikationen School of Engineering

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Rajbhandari, Y., Marahatta, A., Shrestha, A., Gachhadar, A., Thapa, A., Gonzalez-Longatt, F., Guerrero, J. M., & Korba, P. (2022). Load prioritization technique to guarantee the continuous electric supply for essential loads in rural microgrids. International Journal of Electrical Power & Energy Systems, 134(107398). https://doi.org/10.1016/j.ijepes.2021.107398

Rajbhandari, Y. et al. (2022) ‘Load prioritization technique to guarantee the continuous electric supply for essential loads in rural microgrids’, International Journal of Electrical Power & Energy Systems, 134(107398). Available at: https://doi.org/10.1016/j.ijepes.2021.107398.

Y. Rajbhandari et al., “Load prioritization technique to guarantee the continuous electric supply for essential loads in rural microgrids,” International Journal of Electrical Power & Energy Systems, vol. 134, no. 107398, 2022, doi: 10.1016/j.ijepes.2021.107398.

RAJBHANDARI, Yaju, Anup MARAHATTA, Ashish SHRESTHA, Anand GACHHADAR, Anup THAPA, Francisco GONZALEZ-LONGATT, Josep M. GUERRERO und Petr KORBA, 2022. Load prioritization technique to guarantee the continuous electric supply for essential loads in rural microgrids. International Journal of Electrical Power & Energy Systems. 2022. Bd. 134, Nr. 107398. DOI 10.1016/j.ijepes.2021.107398

Rajbhandari, Yaju, Anup Marahatta, Ashish Shrestha, Anand Gachhadar, Anup Thapa, Francisco Gonzalez-Longatt, Josep M. Guerrero, and Petr Korba. 2022. “Load Prioritization Technique to Guarantee the Continuous Electric Supply for Essential Loads in Rural Microgrids.” International Journal of Electrical Power & Energy Systems 134 (107398). https://doi.org/10.1016/j.ijepes.2021.107398.

Rajbhandari, Yaju, et al. “Load Prioritization Technique to Guarantee the Continuous Electric Supply for Essential Loads in Rural Microgrids.” International Journal of Electrical Power & Energy Systems, vol. 134, no. 107398, 2022, https://doi.org/10.1016/j.ijepes.2021.107398.