A Scalable Var Planning Methodology to Mitigate Reactive Power Scarcity During Energy Transition

Davoodi, Elnaz; Capitanescu, Florin; Alizadeh, Mohammad Iman; Wehenkel, Louis

doi:10.1109/TPWRS.2025.3544035

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A Scalable Var Planning Methodology to Mitigate Reactive Power Scarcity During Energy Transition

Davoodi, Elnaz; Capitanescu, Florin; Alizadeh, Mohammad Iman et al.

2025 • In IEEE Transactions on Power Systems

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https://hdl.handle.net/2268/328493

DOI
10.1109/TPWRS.2025.3544035

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Keywords :

Energy transition; Stochastic optimization; Var-planning; Power systems

Abstract :

[en] The paper re-thinks the reactive power (or Var) planning problem to mitigate reactive power scarcity in the prevailing context of the energy transition to renewable-dominated power supply. The paper first proposes an enhanced tailored problem formulation of Var planning, in the form of a stochastic multiperiod AC security-constrained optimal power flow; it minimizes the investment cost in new reactive power assets to meet power system constraints under various operating conditions. Then, the paper develops a new scalable methodology to solve this Var planning problem; it achieves scalability by a progressive and efficient identification of the binding combinations of contingencies, time periods, and uncertainty scenarios, which allows solving sequentially problems of much smaller size than the original one.The performance of the methodology is demonstrated on a 60-bus model of the Nordic system and a 1203-bus model of a real system.

Disciplines :

Electrical & electronics engineering
Energy

Author, co-author :

Davoodi, Elnaz; LIST - Luxembourg Institute of Science and Technology

Capitanescu, Florin ; LIST - Luxembourg Institute of Science and Technology

Alizadeh, Mohammad Iman; LIST - Luxembourg Institute of Science and Technology

Wehenkel, Louis ; Université de Liège - ULiège > Département d'électricité, électronique et informatique (Institut Montefiore) > Méthodes stochastiques

Language :

English

Title :

A Scalable Var Planning Methodology to Mitigate Reactive Power Scarcity During Energy Transition

Publication date :

2025

Journal title :

IEEE Transactions on Power Systems

ISSN :

0885-8950

Publisher :

Institute of Electrical and Electronics Engineers, United States - New Jersey

Peer reviewed :

Peer Reviewed verified by ORBi

Tags :

CÉCI : Consortium des Équipements de Calcul Intensif

Funders :

F.R.S.-FNRS - Fund for Scientific Research

Funding number :

T.058.20

Funding text :

The authors acknowledge the funding from Luxembourg National Research Fund (FNR) in the framework of the project ML4SCOPF (INTER/FNRS/19/14015062). This work was supported by the Fonds de la Recherche Scientifique - FNRS under grant T.058.20. E. Davoodi, F. Capitanescu, and M.I. Alizadeh are with the Luxembourg Institute of Science and Technology (elnaz.davoodi, florin.capitanescu, mohammad.alizadeh@list.lu) and L. Wehenkel is with the University of Liege, Belgium (l.wehenkel@uliege.be).

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