A Strategy for Forced Oscillation Suppression

TitleA Strategy for Forced Oscillation Suppression
Publication TypeJournal Article
Year of Publication2020
AuthorsDaniel J Trudnowski, Ross Guttromson
JournalIEEE Transactions on Power Systems
Pagination1 - 1
Date Published05/2020

Wide-area time-synchronized measurements have recently revealed troublesome forced oscillations (FOs) within modern synchronized power grids. In some cases, these FOs represent a dangerous hazard to the system. Recent research has focused on locating the source of FOs to provide operators with knowledge for mitigating their impact locally. This paper presents a complementary mitigation strategy, which is to purposely induce a second oscillation into the grid which cancels the impact of the FO. Such a strategy is complementary in that it may provide valuable time to operators attempting to locate the FOs source and to determine how to rectify it. This paper presents a suppression control strategy which modulates controllable devices to automatically cancel the impact of the FO without the need for locating the source of the original FO. The strategy is based upon tuned feedback control. The approach is demonstrated on a simulation system via modulation of inverter-based generation.

Short TitleIEEE Trans. Power Syst.