Title :
A simplified fault currents analysis method considering transient of synchronous machine
Author :
Kai, Takaaki ; Takeuchi, Nobutaka ; Funabashi, Toshihisa ; Sasaki, Haruo
Author_Institution :
Syst. Technol. Div., Meidensha Corp., Tokyo, Japan
fDate :
9/1/1997 12:00:00 AM
Abstract :
The transient fault currents of a synchronous machine fault were mathematically analyzed by using the two-reaction theory, Clarke´s components, etc. However, the methods were extremely complicated and the transient fault analysis of synchronous machine with a load was not carried out except for three-phase faults. This paper proposes a simplified fault currents analysis method considering synchronous machine transients. The method is based on the symmetrical components scheme. The advantages of the method are that the transient analysis is able to be accomplished more easily than the conventional method when the fault point is a synchronous machine terminal or a transmission line. The accuracy of the method is confirmed by comparing the analysis results with Electro-Magnetic Transient Program (EMTP) digital simulations
Keywords :
electric machine analysis computing; fault currents; machine theory; software packages; synchronous machines; transient analysis; Clarke´s components; EMTP software; computer simulation; fault currents analysis method; symmetrical components method; synchronous machine; transient fault analysis; two-reaction theory; Circuit faults; Equations; Equivalent circuits; Fault currents; Power system transients; Power transmission lines; Synchronous machines; Transient analysis; Transmission line theory; Voltage;
Journal_Title :
Energy Conversion, IEEE Transactions on
