On the Analysis of Voltage and Current Transients in Three-Phase Power Systems
Artikel i vetenskaplig tidskrift, 2007

This paper presents a method for analysis measurements of voltage transients in three-phase systems. The method is based on the Clarke transform introduced in 1950 for calculations of travelling waves along three-phase transmission lines. The proposed method also shows close similarities with the classification of three-phase unbalanced voltage dips into types C and D. After extracting the actual transient, e.g. by using a notch filter centered on the power-system frequency, the three signals are decomposed into seven components. From the relation between these seven components, the dominant component is identified. The method is successfully applied to a number of measured transients. The paper also identifies the limitations of the method and gives suggestions for future work.

power transmission and distribution

transformation and analysis

Power quality

capacitor energizing

electromagnetic compatibility

power system transients


Math H.J. Bollen

Irene Yu-Hua Gu

Signaler och system, Signalbehandling och medicinsk teknik, Signalbehandling

IEEE Transactions on Power Delivery

Vol. 22 1194-1201, April 2007



Annan elektroteknik och elektronik