A Method for Flicker Severity Evaluation using the Hadamard Transform
نویسندگان
چکیده
This paper proposes a method to estimate the flicker severity index using the Hadamard transform. A weighting filter in the sequency domain is utilized for direct computation of the flicker index. The proposed method is compared with a flicker meter in the frequency domain that uses the Fast Fourier Transform (FFT). It is seen by numerical simulations that the proposed method yields flicker severity indices within the stipulated range for six test signals prescribed by the IEC. The computational simplicity of the Hadamard transform may be potentially useful in hardware realizations of digital flickermeters.
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Flickermeter Design: An Improved Method to evaluate Short term Flicker Severity Index (Pst) using Walsh Hadamard Transform (WHT)
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