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

fYear

2005

fDate

2005

Firstpage

1

Lastpage

7

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference and Exhibition: Asia and Pacific, 2005 IEEE/PES

Conference_Location

Dalian

Print_ISBN

0-7803-9114-4

Type

conf

DOI

10.1109/TDC.2005.1546768

Filename

1546768