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Real-Time B-Spline Interpolation for Harmonic Phasor Estimation in Power Systems
IEEE Transactions on Instrumentation and Measurement, 2022The fundamental component synchrophasors are widely used nowadays, based on the use of phasor measurement units (PMUs), in several applications in electrical power systems.
R. R. Aleixo +4 more
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Fault Current Phasor Estimation Below One Cycle Using Fourier Analysis of Decaying DC Component
IEEE Transactions on Power Delivery, 2022The full-cycle discrete Fourier transform (FCDFT) is commonly used to estimate phasors in numerical relays because of its immunity to harmonics and accurate identification of a decaying dc component (DDC) in a fault current.
Jin-Kwon Hwang, C. Lee
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A Phasor Estimation Algorithm Robust to Decaying DC Component
IEEE Transactions on Power Delivery, 2021Phasor measurement is widely used in fault detection and localization of power systems. To improve the phasor measurement accuracy when the fault signal contains the decaying dc component (DDC), this article proposes a half-cycle DFT (HCDFT)-based phasor
Haotian Yu +3 more
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Enhanced Morlet Wavelet-Based Two-Point FIR for Phasor Estimation
IEEE Transactions on Smart Grid, 2022Recently, a new approach called Morlet wavelet-based two-point FIR (MW-FIR) is proposed for the phasor estimation. Although the approach shows several advantages, it is still not fully compliant with all standard requirements.
Xin Liu, N. Nair
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Harmonic Phasor Estimation Based on Frequency-Domain Sampling Theorem
IEEE Transactions on Instrumentation and Measurement, 2021Harmonic phasor estimation can be used both in power system protection and monitoring applications, such as islanding detection, high-impedance fault location, and harmonic state estimation.
Lei Chen +4 more
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A General Design Method for Phasor Estimation in Different Applications
IEEE Transactions on Smart Grid, 2021Driven by the increasing development and complexity of bulk power systems, the requirements of phasor estimation methods differ for different scenarios and applications. In this study, a general design method for phasor estimation algorithms in different
Sudi Xu, Hao Liu, T. Bi
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Generalized Phasor Estimation Method Based on DFT with DC Offset Mitigation
IEEE Power & Energy Society General Meeting, 2021This paper proposes a generalized discrete Fourier transform (DFT) based dc offset mitigation method to improve the accuracy of phasor estimation during faults. The DFT is applied to the signal and the results are separated into multiple sets, where each
D. Lu, Yu Liu, Binglin Wang, Y. Xing
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Phasor assisted state estimation
2015 International Conference on Computer, Communication and Control (IC4), 2015This paper presents phasor assisted state estimation (PASE) via gauss newton method performed in rectangular co-ordinate. Phasor measurements collected by PMUs (phasor measurement unit) are added in existing conventional measurements scanned via remote terminal units (RTUs) through linear post processing step.
J. S. Bhonsle, A. S. Junghare
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Phasor estimation under transient conditions
2015 IEEE Eindhoven PowerTech, 2015This paper proposes novel strategies for estimating current and voltage dynamic phasors under transient conditions. Algorithms based on: (i) Taylor-Kalman-Fourier (TkKF) filter; (ii) Taylor-Kalman (TK) filter; and (iii) Prony's method (PM), are compared respect to the conventional discrete Fourier transform (DFT).
M. R. A. Paternina +3 more
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Harmonic Phasor Estimation With Flat-Top FIR Filter
IEEE Transactions on Instrumentation and Measurement, 2020The IEEE Std C37.118.1(a) describes synchrophasor measurement by a phasor measurement unit (PMU) for the system fundamental frequency. Harmonic synchrophasor, i.e., synchrophasor measured for harmonic frequencies, is not considered in the standard ...
K. Duda +3 more
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