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Microgrid Operational Optimization with Dynamic Voltage Security Constraints
Nakiganda, Agnes; Van Cutsem, Thierry; Aristidou, Petros
2021In Proceedings of the 14th IEEE PowerTech conference
Peer reviewed
 

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Keywords :
Dynamic grid support; dynamic optimization; emergency islanding; fault ride-through; microgrid; operational planning
Abstract :
[en] Emergency islanding of a microgrid (MG) can be vital in ensuring continuity of power supply to a local network during major contingencies in the main grid. However, such an event will inadvertently cause large voltage transients except in the trivial case where zero power is exchanged. The under/over voltages can result in the disconnection of the local distributed generators within the MG, increasing the risk of a local blackout. In this paper, we present a MG operational optimization strategy that includes dynamic voltage constraints aiming at enhancing MG resilience during emergency situations. A dynamic optimization technique, based on sequential constraint transcription, is used to formulate the dynamic voltage security constraints applied to the steady-state problem in a computationally efficient manner. An iterative approach ensures that the dynamic constraints are updated in relation to the optimized operating point of the MG. The performance of the proposed approach is investigated on a 30-bus medium-voltage MG by considering a potential disconnection at each hour of the day, subject to daily load and generation profiles.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Nakiganda, Agnes
Van Cutsem, Thierry  ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Aristidou, Petros
Language :
English
Title :
Microgrid Operational Optimization with Dynamic Voltage Security Constraints
Publication date :
June 2021
Event name :
14th IEEE PowerTech conference
Event organizer :
Comillas Pontifical University
Event place :
Madrid, Spain
Event date :
June 28th - July 2nd, 2021
Audience :
International
Main work title :
Proceedings of the 14th IEEE PowerTech conference
Peer reviewed :
Peer reviewed
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique
Commentary :
With this paper and her presentation at the conference, the first author won one of the Basil Papadias best paper award
Available on ORBi :
since 14 May 2021

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