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- W2984804935 abstract "The proper tackling of rapid transients, such as voltage sags and swells, by protection systems of power grids that increasingly incorporate low-inertia renewable generators is a current concern in the power generation and metrology communities. In a previous paper, we have reported the characterization of a PMU calibration system that handles synchronized generation and sampling of signals with magnitude and phase step discontinuities. That calibrator employed an iterative parametric method that estimates the underlying phasor parameters, given a priori knowledge of the step location and an initial rough estimate of the phasor frequency. In this paper, we tackle the latter two problems and propose a method that blindly detects a step change from the phasor waveform and provides an accurate estimate of its location in time. Moreover, a simple method that yields a crude estimate of the phasor frequency is also proposed. We measured the accuracy of the estimates in simulated scenarios, including noisy signals," @default.
- W2984804935 created "2019-11-22" @default.
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- W2984804935 date "2019-09-01" @default.
- W2984804935 modified "2023-09-27" @default.
- W2984804935 title "Step Change Detection Based on Analytic Signal for PMU Calibrators" @default.
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- W2984804935 doi "https://doi.org/10.1109/amps.2019.8897772" @default.
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