TechRxiv
Knittel_Voltage Control in Transmission Grids Considering Uncertainties of Renewable Energy Sources_preprint.pdf (1.33 MB)
0/0

Voltage Control in Transmission Grids Considering Uncertainties of Renewable Energy Sources_preprint.pdf

Download (1.33 MB)
preprint
posted on 17.03.2020 by Markus Knittel, Neelotpal Majumdar, Maximilian Schneider, Nicolas Thie, Albert Moser
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.

History

Email Address of Submitting Author

markus.knittel@rwth-aachen.de

ORCID of Submitting Author

https://orcid.org/0000-0002-7737-0822?lang=en

Submitting Author's Institution

RWTH Aachen

Submitting Author's Country

Germany

Exports

Exports