Title :
Investigation of Internal Fault Modeling of Power former
Author :
Lin, Xiangning ; Tian, Qing ; Liu, Pei ; Chen, Lian
Author_Institution :
Dept. of Electr. Eng., Huazhong Univ. of Sci. & Technol., Wuhan
Abstract :
This paper describes a model of a 75 MVA and 150 kV synchronous machine (powerformer), which can be used to simulate internal fault waveforms for power system protection studies. The method employs a direct phase representation considering the cable capacitance. A method to calculate the inductance and its magnetic axis location of the faulty path is outlined. The machine equations are then solved using a suitable numerical technique. Comparisons are made between the simulated waveforms and recorded waveforms to verify the accuracy of the model
Keywords :
capacitance; fault currents; inductance; machine protection; power cables; power system protection; power transformers; synchronous generators; 150 kV; 75 MVA; cable capacitance; direct phase representation; fault currents; inductance; internal fault modeling; machine equations; machine modeling; power system protection studies; powerformer; synchronous machine; Capacitance; Circuit faults; Machine windings; Power cable insulation; Power cables; Power generation; Power system modeling; Power system simulation; Power transformer insulation; Solids; Cable; Internal faults; Machine modeling; Powerformer;
Conference_Titel :
Transmission and Distribution Conference and Exhibition: Asia and Pacific, 2005 IEEE/PES
Conference_Location :
Dalian
Print_ISBN :
0-7803-9114-4
DOI :
10.1109/TDC.2005.1546768
