Title :
Decreasing the harmonic content of the fault current during single-phase to ground faults in compensated network
Author :
Dán, András M. ; Czira, Z. ; Raisz, D.
Author_Institution :
Dept. of Electr. Power Eng., Budapest Univ. of Technol. & Econ., Budapest, Hungary
Abstract :
The harmonic content of the short circuit current during single-phase to earth fault is discussed in networks with compensated neutrals. An overview of different methods to decrease the harmonics in the fault current is given. The zero sequence active filtering method is analyzed in detail using computer simulations. Two compensation algorithms are compared based on their efficiency when operation is maintained during a single-phase to earth fault. Finally, a report of on-site measurements is presented, the measurement results are compared to the simulation results. Based on these results it is concluded that the method has proven to be effective in reducing the residual current and thus it is ready to be implemented in substations.
Keywords :
active filters; earthing; fault currents; power filters; substations; compensated network; earth fault; fault current; ground faults; harmonic content; onsite measurements; short circuit current; single-phase faults; substations; zero sequence active filtering method; Active filters; Circuit faults; Computational modeling; Computer simulation; Earth; Fault currents; Filtering; Power harmonic filters; Short circuit currents; Substations; Active filters; Harmonic distortion; Measurement; Power distribution faults; Power distribution reliability; Power electronics; Power filters; Power quality; Power system harmonics;
Conference_Titel :
PowerTech, 2009 IEEE Bucharest
Conference_Location :
Bucharest
Print_ISBN :
978-1-4244-2234-0
Electronic_ISBN :
978-1-4244-2235-7
DOI :
10.1109/PTC.2009.5281924
