Journal of Modern Power Systems and Clean Energy

ISSN 2196-5625 CN 32-1884/TK

Stochastic Energy Management of Microgrid with Nodal Pricing
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Department of Electrical Engineering, Indian Institute of Technology Gandhinagar, Palaj 382355, Gandhinagar, India

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This work was supported by the Science and Engineering Research Board (SERB), a statutory body of Department of Science and Technology (DST), Government of India (GoI) (No. EMR/2016/002037).

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    Abstract:

    This paper develops a stochastic framework for the energy management of a microgrid to minimize the energy cost from the grid. It considers the uncertainties in solar photovoltaic (PV) generation, load demand, and electricity price. Furthermore, the opportunity of flexible load demand, i.e., the effect of demand response (DR), on the test system is studied. The uncertainties are modeled by using Monte Carlo simulations and the generated scenarios are reduced to improve the computational tractability. In general, microgrid scheduling is implemented by using substation (source node) price as a reference, but that reference price is not the same at all nodes. Therefore, this paper develops the nodal price based energy management in a microgrid to improve the scheduling accuracy. The stochastic energy management framework is formulated as a mixed integer non-linear programming (MINLP). Four case studies are simulated for a modified 15-node radial distribution network integrated with solar PV and battery energy storage system (BESS) to validate the effectiveness of the energy management framework for a microgrid with nodal pricing.

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History
  • Received:August 07,2018
  • Revised:
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  • Online: March 02,2020
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