Active distribution network; real-time control; voltage control; model predictive control
Abstract :
[en] A two-level real-time voltage control scheme is proposed to keep voltages within specified limits in distribution grids using Distributed Generation Units (DGUs). It combines a local and a centralized control of their reactive powers. The local control provides fast response after a disturbance, reducing its impact and enhancing voltage quality. The centralized control uses measurements collected throughout the network to bring the voltages inside tighter limits and balance the various DGU contributions. To this purpose, it adjusts in a coordinated way their reactive power set-points, taking into account the local controls. This discrete control solves at each time step a multi-time-step constrained optimization inspired of Model Predictive Control. The method effectiveness is demonstrated on a 75-bus test system hosting 22 DGUs.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Soleimani Bidgoli, Hamid ; Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Van Cutsem, Thierry ; Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Language :
English
Title :
Combined Local and Centralized Voltage Control in Active Distribution Networks
Publication date :
March 2018
Journal title :
IEEE Transactions on Power Systems
ISSN :
0885-8950
Publisher :
IEEE
Volume :
33
Issue :
2
Pages :
1374-1384
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
GREDOR
Funders :
Service public de Wallonie : Direction générale opérationnelle de l'aménagement du territoire, du logement, du patrimoine et de l'énergie - DG04 F.R.S.-FNRS - Fonds de la Recherche Scientifique
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