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Decentralized and Distributed Frequency Control in Power Grids

Author(s):

A. Lelouvier
Conference/Journal:

Semester Thesis, FS15 (10413)
Abstract:

With the increasing dependency to electrical power, the need for an efficient power grid becomes of first priority. During this project, we focus on the frequency regulation problem, namely how to schedule the controllable power injections to balance load and generation such that the synchronous frequency of the grid is restored to its nominal network value. Recent advancements in distributed frequency-regulation controllers made it possible to overcome the limitations of classic control approaches. This project investigates a distributed-averaging controller, a dual-decomposition controller inspired from mean-field theory and an optimization-based controller derived from a partial primal-dual sub-gradient method. A comparison regarding the performance and requirements of each approach is then produced and some specific case studies get discussed. The outcome hints the advantages of the simple mean-field inspired controller over the other more complex controllers. However, the other approaches can lead to better performance in low quality communication situations, as the dual-decomposition controller greatly depends on robust information exchange from the central coordinator to all controllable nodes.

Supervisors: Sergio Grammatico, Florian Dörfler

Year:

2015
Type of Publication:

(13)Semester/Bachelor Thesis
Supervisor:

F. Dörfler

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% Autogenerated BibTeX entry
@PhdThesis { Xxx:2015:IFA_5195
}
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