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A new formulation of state estimation in distribution systems including demand and generation states
Rousseaux, Patricia; Toubeau, Jean-François; De Grève, Zacharie et al.
2015In proceeedings of the 2015 Power Tech conference
Peer reviewed
 

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Keywords :
distribution systems; state estimation; load components
Abstract :
[en] Distribution system state estimation faces a major difficulty: the lack of real-time measurements. This imposes to add information, usually pseudo-measurements from historical data. This paper proposes a different, novel formulation of state estimation relying on the classification of loads into components (e.g. residential, commercial, etc.) and accounting for dispersed generation. The approach “by-passes” the use of pseudo-measurements by expressing the medium-voltage bus injections as functions of a small number of active power components at low-voltage level, treated as additional state variables. The injections at medium-voltage buses become equality constraints. A procedure to identify the above functions is detailed, which takes advantage of data collected by smart meters.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Rousseaux, Patricia ;  Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Système et modélisation
Toubeau, Jean-François
De Grève, Zacharie
Vallée, François
Glavic, Mevludin ;  Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Système et modélisation : Optimisation discrète
Van Cutsem, Thierry  ;  Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Language :
English
Title :
A new formulation of state estimation in distribution systems including demand and generation states
Publication date :
June 2015
Event name :
IEEE PES 2015 PowerTech conference
Event organizer :
IEEE PES and TU/e Eindhoven
Event place :
Eindhoven, Netherlands
Event date :
du 29 juin au 2 juillet 2015
Audience :
International
Main work title :
proceeedings of the 2015 Power Tech conference
Peer reviewed :
Peer reviewed
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 [BE]
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