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- W4225290960 abstract "This article proposes a robust and enhanced three-phase fundamental frequency estimation algorithm for the electric aircraft grid. Unlike conventional frequency-locked loops, the digital signal processing technique-based frequency estimator proposed relies on the storage of five consecutive samples of the fundamental grid voltage signal. Furthermore, the ability to successfully operate at a low sampling frequency, i.e. 8 kHz, makes it sufficiently attractive as regards reducing the memory storage in a low-cost real-time controller. The proposed frequency estimator can additionally eliminate the negative effects of the DC-offset and the fundamental negative sequence components present in the grid signal without any additional effort. Also, the tuning efforts are reduced for the frequency variation range of 350–900 Hz owing to the existence of a single tuning gain parameter. The proposed algorithm has also been found to have a fast dynamic response, which has been experimentally validated through the use of a real-time digital controller." @default.
- W4225290960 created "2022-05-05" @default.
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- W4225290960 date "2022-06-01" @default.
- W4225290960 modified "2023-10-16" @default.
- W4225290960 title "An enhanced fast fundamental frequency estimator for three-phase electric aircraft grid" @default.
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- W4225290960 doi "https://doi.org/10.1016/j.measurement.2022.111142" @default.
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