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Wavelet based on-line disturbance detection for power quality applications

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3 Author(s)
Karimi, M. ; Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada ; Mokhtari, H. ; Iravani, M.R.

This paper introduces a new online voltage disturbance detection approach based on the wavelet transform. The proposed approach: (1) identifies voltage disturbances; and (2) discriminates the type of event which has resulted in the voltage disturbance, e.g. either a fault or a capacitor-switching incident. The proposed approach is: (1) significantly faster; and (2) more precise in discriminating the type of transient event than conventional voltage-based disturbance detection approaches. The feasibility of the proposed disturbance detection approach is demonstrated based on digital time-domain simulation of a power distribution system using the PSCAD/EMTDC software package

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Power Delivery, IEEE Transactions on  (Volume:15 ,  Issue: 4 )