Title :
Ground fault detection method for three phase inverters based on the third harmonic
Author :
Karkkainen, Tommi ; Rauma, Kalle ; Silventoinen, Pertti
Author_Institution :
LAPPEENRANTA Univ. OF Technol., Lappeenranta, Finland
fDate :
Aug. 30 2011-Sept. 1 2011
Abstract :
A new ground fault detection method based on third harmonic injection and the measurement of third harmonic current is presented. As the third harmonic is a common mode signal in a three phase system, its existence in current is a sign of a ground fault.
Keywords :
earthing; fault diagnosis; invertors; power system harmonics; common mode signal; ground fault detection method; third harmonic current measurement; third harmonic injection; three phase inverter system; Circuit faults; Current measurement; Fault currents; Fault detection; Harmonic analysis; Impedance; Inverters; AC/AC converter; Fault handling strategy; Harmonics; Three-phase system;
Conference_Titel :
Power Electronics and Applications (EPE 2011), Proceedings of the 2011-14th European Conference on
Conference_Location :
Birmingham
Print_ISBN :
978-1-61284-167-0
Electronic_ISBN :
978-90-75815-15-3
