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Optimal load scheduling within a microgrid including reliability aspects

Author(s): Zubin Japa Balan, Prabodh Bajpai*
Electrical Engineering Department, Indian Institute of Technology, Kharagpur, PIN:721302, India
International Journal of Smart Grid and Clean Energy, vol. 2, no. 3, October 2013: pp. 343-349
ISSN: 2315-4462
Digital Object Identifier: 10.12720/sgce.2.3.343-349

Abstract: Establishment and running of microgrids involve considerable investment. In order to justify the investment, the economic benefits arising out of microgrid have to be studied. In this work, an analysis of profit to the loads is performed, including reliability parameters like probability of interruption and average duration of interruption. A case study is presented, for a microgrid operating along with the main grid having a time of day tariff for power supply. When there is interruption of main grid supply, the microgrid generators meet the load. The loads are scheduled such that the probability weighted average electricity cost is the minimum. Then the profit for the loads because of the microgrid is calculated. It is inferred from the simulation results that, the microgrid is beneficial to the loads, subject to reliability conditions, tariff structure and worth of energy for the loads.
Keywords: 

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