Performance Evaluation of PMU using Modified Cooley-Tukey Algorithm Based on GDFT

Abbaci, Mohamed; Zmirli, Mohamed Ould

doi:10.1109/icass.2018.8651967

Cited by 2 publications

(2 citation statements)

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“… The Measurement Unit receives analog data inputs such as three-phase voltages, three-phases, and neutral currents from the secondary measurement transformers (VT and CT), which are later filtered to eliminate and prevent aliasing errors by antialiasing filters [13,17].…”

Section: A Block Diagram Of Pmumentioning

confidence: 99%

“…where X r and X i are the real and the imaginary components of the complex form, and √ is the RMS value. Figure 2 shows the phasor representation of a sinusoidal input signal at the angular frequency in the complex plane [10,17]. In the case of a phase current or voltage, the projection of the phase vector on the ordinate axis (imaginary axis) gives the value of the current or voltage at that instant.…”

Section: ) Phasor Measurement Unit (Pmu)mentioning

confidence: 99%

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Cooley-Tukey FFT Algorithm based on GDFT for Phasor Estimation by PMU under Power Quality Disturbances

Abbaci

Zmirli

2023

Eng. Technol. Appl. Sci. Res.

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Due to the high penetration of renewable energy sources, such as photovoltaic panels and wind turbines, in addition to the use of different electric power supplies in the power grid, there are major disturbances in the forms of electric waves. These variations and disturbances must be monitored and controlled for the efficient management of transmission and distribution of electrical energy, safety, and electrical protection systems. Nowadays, Phasor Measurement Unit (PMU) technology is an essential tool to develop the supervision, protection, and control of the electrical power grid. PMUs measure the amplitude and angle of current and voltage waveforms on a Coordinated Universal Time (UTC) time scale and speedily measure the fundamental frequencies and their rates of change using fast and accurate estimation algorithms. This paper presents a phasor estimation using a Modified Cooley-Tukey Fast Fourier Transform algorithm based on the Generalized Discrete Fourier Transform (DFT) used in PMUs, using simulations in MATLAB. This algorithm was utilized to accelerate and simplify the computation of DFTs. To validate the performance under waveform disturbances, several tests with different waveforms and disturbances were simulated and interpreted according to the standard and compared with DFT.

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Section: A Block Diagram Of Pmumentioning

confidence: 99%

Section: ) Phasor Measurement Unit (Pmu)mentioning

confidence: 99%