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2016 | OriginalPaper | Buchkapitel

Frequency Regulation in Power Grids by Optimal Load and Generation Control

verfasst von : Sebastian Trip, Claudio De Persis

Erschienen in: Smart Grids from a Global Perspective

Verlag: Springer International Publishing

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Abstract

This chapter studies the problem of frequency regulation in power grids in the presence of unknown and uncontrollable generation and demand. We propose distributed controllers such that frequency regulation is achieved, while maximising the ‘social welfare’, i.e. maximising the utility of consuming power minus the cost of producing power. The controllable generation and loads are modeled as the output of a first-order system, which includes a widely used model describing the turbine-governor dynamics. We formulate the problem of frequency regulation as an output agreement problem for distribution networks and address it using incremental passivity, enabling a systematic approach to study convergence to the steady state with zero frequency deviation. In order to achieve optimality, the distributed controllers are utilising a communication network to exchange relevant information. The academic case study provides evidence that the performance of the controllers is good.

Fußnoten
1

A variable which is constant is denoted with a bar.

 
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Metadaten
Titel
Frequency Regulation in Power Grids by Optimal Load and Generation Control
verfasst von
Sebastian Trip
Claudio De Persis
Copyright-Jahr
2016
DOI
https://doi.org/10.1007/978-3-319-28077-6_9