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Application of Gabor transform technique to supervise power system transient harmonics

Application of Gabor transform technique to supervise power system transient harmonics

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A novel approach to visualising power system harmonic trends is proposed. The Gabor transform technique, embedded with a Gaussian-like window function, is applied to help monitor harmonic variations in the time dimension. Using the proposed scheme, power system transient harmonics can be closely observed. The proposed method has been tested for the inspection of inrush current harmonics of transformers and industrial arc furnace disturbances. The results demonstrate the merits of the proposed method for the applications.

Inspec keywords: industrial power systems; power system harmonics; arc furnaces; power transformers; transforms; power system transients; harmonic distortion; time-domain analysis

Other keywords: harmonic variations; power system transient harmonics; time domain; Gaussian-like window function; transformers; Gabor transform technique; inrush current harmonics; industrial arc furnace disturbances

Subjects: Integral transforms; Transformers and reactors; Numerical analysis; Industrial applications of power; Power systems; Other numerical methods; Process heating

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