Voltage control in transmission grids considering uncertainties of renewable energy sources

verfasst von

Markus Knittel, Neelotpal Majumdar, Maximilian Schneider, Nicolas Thie, Albert Moser

Abstract

Power traders and system operators need to balance the uncertain generation of renewable energy sources by adapting the dispatch of conventional power plants. This poses a challenge to voltage control in power system operation. Accordingly, this paper presents a method to determine voltage magnitude probability densities which are integrated into an optimal reactive power flow to consider an uncertain active power generation. First, the probability densities are determined by Monte Carlo simulations including a unit commitment problem to derive the dispatch of conventional power plants. Second, uncertainty restrictions are used to create soft constraints for the optimal reactive power flow, which mitigates the risk of voltage limit violations. By adapting the soft constraints slack costs, the consideration of uncertainties can be prioritized in relation to other objectives, such as the reduction of active power losses, or reactive power costs.

Externe Organisation(en)

Rheinisch-Westfälische Technische Hochschule Aachen (RWTH)

Typ

Aufsatz in Konferenzband

Seiten

580-585

Anzahl der Seiten

6

Publikationsdatum

28.09.2020

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Elektrotechnik und Elektronik, Maschinenbau, Energieanlagenbau und Kraftwerkstechnik, Erneuerbare Energien, Nachhaltigkeit und Umwelt

Ziele für nachhaltige Entwicklung

SDG 7 – Erschwingliche und saubere Energie

Elektronische Version(en)

https://doi.org/10.1109/energycon48941.2020.9236597 (Zugang: Geschlossen)