P Class and M Class Compliant PMU Based on Discrete-Time Frequency-Gain Transducer

Phasor Measurement Units (PMUs) are widely used in the Smart Grids (SGs). In this paper we propose the discrete-time frequency-gain transducer (DTFGT) and we apply it for PMU implementation. The DTFGT is a general-purpose, short-cycle, leakage-free, computationally feasible, frequency estimator that...

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Bibliographic Details
Published in:IEEE transactions on power delivery 2022-04, Vol.37 (2), p.1058-1067
Main Authors: Duda, Krzysztof, Zielinski, Tomasz
Format: Article
Language:English
Subjects:
discrete Fourier transform (DFT)
Discrete Fourier transforms
Discrete-time frequency-gain transducer
finite impulse response (FIR) filter
Finite impulse response filters
FIR filters
Frequency estimation
Frequency response
Measuring instruments
phasor measurement unit (PMU)
Phasor measurement units
Phasors
Power harmonic filters
Response time
signal processing
Smart grid
Time-frequency analysis
Transducers
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Description
Summary:Phasor Measurement Units (PMUs) are widely used in the Smart Grids (SGs). In this paper we propose the discrete-time frequency-gain transducer (DTFGT) and we apply it for PMU implementation. The DTFGT is a general-purpose, short-cycle, leakage-free, computationally feasible, frequency estimator that exploits gain slope of a Finite Impulse Response (FIR) filter frequency response. The proposed PMUs inherit the features of the DTFGT and are compliant in Protective class (P) and Measurement class (M) of the IEC/IEEE 60255-118-1 standard. Comparison with other FIR based PMUs highlights advantages of the proposed solution such as high accuracy, good noise immunity, short response time and simple implementation.
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2021.3076831