Title: Controlling the power balance in an 'empty network'

Authors: M. Reza, A.O. Dominguez, P.H. Schavemaker, A. Asmara, F.A. Viawan, W.L. Kling

Addresses: Electrical Power System Laboratory, Faculty of Electrical Engineering, Mathematics and Computer Science, Delft University of Technology, Mekelweg 4, 2628 CD, Delft, The Netherlands. ' Electrical Engineering Department, University of Vigo, 36310 Vigo (Pontevedra), Spain. ' Electrical Power System Laboratory, Faculty of Electrical Engineering, Mathematics and Computer Science, Delft University of Technology, Mekelweg 4, 2628 CD, Delft, The Netherlands; TenneT TSO, TenneT B.V., Utrechtseweg 310, 6812 AR, Arnhem, The Netherlands ' Ship Production, Marine and Transport Technology, Delft University of Technology, Mekelweg 2, 2628 CD, Delft, The Netherlands. ' Division of Electric Power Engineering, Chalmers University of Technology, S-412 96 Gothenburg, Sweden. ' Electrical Power System Laboratory, Faculty of Electrical Engineering, Mathematics and Computer Science, Delft University of Technology, Mekelweg 4, 2628 CD, Delft, The Netherlands; TenneT TSO, TenneT B.V., Utrechtseweg 310, 6812 AR, Arnhem, the Netherlands

Abstract: This paper presents the concept of an |empty network| and shows how the power balance can be controlled in such a system. In this study, an |empty network| is defined as a transmission system in which no rotating mass is present. All generators are connected to distributed systems and |hidden| behind power electronic interfaces. One generator creates a neat 50 Hz voltage that serves as a frequency reference for the other generators. Consequently, a power imbalance cannot be detected in the classical way, as an altered system frequency. Therefore, a novel control system to maintain the power balance is needed. In this paper, voltage deviations are used to detect power imbalances, and remedies to eliminate the negative consequences of using the voltage deviations to detect the power imbalances are proposed and discussed.

Keywords: empty network; power balance control; distributed generation; distribution systems; power electronic interfaces; voltage deviations; power imbalances.

DOI: 10.1504/IJETP.2007.015513

International Journal of Energy Technology and Policy, 2007 Vol.5 No.5, pp.584 - 603

Published online: 23 Oct 2007 *

Full-text access for editors Access for subscribers Purchase this article Comment on this article