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Valuation of stored energy in dynamic optimal power flow of distribution systems with energy storage

Abstract

Dynamic optimal power flow (DOPF) models are needed to optimize the operation of a power system with energy storage systems (ESSs) over an extended planning horizon. The optimal storage level at the end of each planning horizon depends on the possible realization of uncertainties in future planning horizons. However, most DOPF models simply require that the storage levels at the end and at the beginning of the planning horizon should be equal. In this paper we consider an AC DOPF model for a distribution system with ESS that explicitly takes into account the expected future value of stored energy. We illustrate the evaluation of the future value function for a system with a wind power plant and demonstrate the use of this value function in the operation of the ESS. The results show that such an operational strategy can be effective compared to not considering the value of stored energy.

Category

Academic chapter/article/Conference paper

Client

  • SINTEF Energy Research / 502000591

Language

English

Author(s)

Affiliation

  • SINTEF Energy Research / Energisystemer
  • Norwegian University of Science and Technology

Year

2016

Publisher

IEEE Press

Book

2016 International Conference on Probabilistic Methods Applied to Power Systems, PMAPS 2016

ISBN

978-1-5090-1970-0

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