Decentral Smart Grid Control - Kölner UniversitätsPublikationsServer

Schaefer, Benjamin, Matthiae, Moritz, Timme, Marc ORCID: 0000-0002-5956-3137 and Witthaut, Dirk ORCID: 0000-0002-3623-5341 (2015). Decentral Smart Grid Control. New J. Phys., 17. BRISTOL: IOP PUBLISHING LTD. ISSN 1367-2630

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DOI:10.1088/1367-2630/17/1/015002

Abstract

Stable operation of complex flow and transportation networks requires balanced supply and demand. For the operation of electric power grids-due to their increasing fraction of renewable energy sources -a pressing challenge is to fit the fluctuations in decentralized supply to the distributed and temporally varying demands. To achieve this goal, common smart grid concepts suggest to collect consumer demand data, centrally evaluate them given current supply and send price information back to customers for them to decide about usage. Besides restrictions regarding cyber security, privacy protection and large required investments, it remains unclear how such central smart grid options guarantee overall stability. Here we propose a Decentral Smart Grid Control, where the price is directly linked to the local grid frequency at each customer. The grid frequency provides all necessary information about the current power balance such that it is sufficient to match supply and demand without the need for a centralized IT infrastructure. We analyze the performance and the dynamical stability of the power grid with such a control system. Our results suggest that the proposed Decentral Smart Grid Control is feasible independent of effective measurement delays, if frequencies are averaged over sufficiently large time intervals.

Item Type:

Journal Article

Creators:

Creators	Email	ORCID	ORCID Put Code
Schaefer, Benjamin	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Matthiae, Moritz	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Timme, Marc	UNSPECIFIED	orcid.org/0000-0002-5956-3137	UNSPECIFIED
Witthaut, Dirk	UNSPECIFIED	orcid.org/0000-0002-3623-5341	UNSPECIFIED