Distributed energy management for community microgrids considering phase balancing and peak shaving

Guodong Liu, Thomas B. Ollis, Bailu Xiao, Xiaohu Zhang, Kevin Tomsovic

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

In this study, a distributed energy management for community microgrids considering phase balancing and peak shaving is proposed. In each iteration, the house energy management system (HEMS) installed in each house minimises its electricity costs and the costs associated with the discomfort of customers due to deviations in indoor temperature from customers’ set points. At the community level, the microgrid central controller (MCC) schedules the distributed energy resources (DERs) and energy storage based on the received load profiles from customers and the forecast energy price at the point of common coupling. The MCC updates the energy price for each phase based on the amount of unbalanced power between generation and consumption. The updated energy price and unbalanced power for each phase are distributed to the HEMSs on corresponding phases. When the optimisation converges, the unbalanced power of each phase is close to zero. Meanwhile, the schedules of DERs, energy storage systems and the energy consumption of each house are determined by the MCC and HEMSs, separately. In particular, the phase balancing and peak shaving are considered in the proposed distributed energy management model. The effectiveness of the proposed distributed energy management has been demonstrated by case studies.

Original languageEnglish
Pages (from-to)1612-1620
Number of pages9
JournalIET Generation, Transmission and Distribution
Volume13
Issue number9
DOIs
StatePublished - 2019

Funding

This work was primarily supported by the U.S. Department of Energy. This work also made use of Engineering Research Center Shared Facilities supported by the Engineering Research Center Program of the National Science Foundation and the Department of Energy under NSF Award Number EEC-1041877 and the CURENT Industry Partnership Program.

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