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PQ Monitoring System for Real-Time Detection and Classification of Disturbances in a Single-Phase Power System

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4 Author(s)
Radil, T. ; Inst. de Telecomun., Lisbon ; Ramos, P.M. ; Janeiro, F.M. ; Cruz Serra, A.

This paper presents a system for detection and classification of power quality (PQ) voltage disturbances. The proposed system applies the following methods to detect and classify PQ disturbances: digital filtering and mathematical morphology are used to detect and classify transients and waveform distortions, whereas for short- and long-duration disturbances (such as sags, swells, and interruptions), the analysis of the root-mean-square (RMS) value of the voltage is employed. The proposed combined approach identifies the type of disturbance and its parameters such as time localization, duration, and magnitude. The proposed system is suitable for real-time monitoring of the power system and implementation on a digital signal processor (DSP).

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Instrumentation and Measurement, IEEE Transactions on  (Volume:57 ,  Issue: 8 )