A sensitivity method for assessing the impact of generator/transformer impedance on power system fault behaviour

McDonald, J. and Saha, T. (2002). A sensitivity method for assessing the impact of generator/transformer impedance on power system fault behaviour. In: IEEE/PES Transmission and Distribution Conference and Exhibition 2002: Asia Pacific, Vols 1-3, Conference Proceedings. 1st International Conference and Exhibition on Transmission and Distribution in the Asia Pacific Region, Yokohama, Japan, (388-393). 6-10 October 2002. doi:10.1109/TDC.2002.1178382


Author McDonald, J.
Saha, T.
Title of paper A sensitivity method for assessing the impact of generator/transformer impedance on power system fault behaviour
Conference name 1st International Conference and Exhibition on Transmission and Distribution in the Asia Pacific Region
Conference location Yokohama, Japan
Conference dates 6-10 October 2002
Proceedings title IEEE/PES Transmission and Distribution Conference and Exhibition 2002: Asia Pacific, Vols 1-3, Conference Proceedings
Publisher IEEE
Publication Year 2002
Sub-type Fully published paper
DOI 10.1109/TDC.2002.1178382
ISBN 0780375254
Volume 1
Start page 388
End page 393
Total pages 5
Language eng
Abstract/Summary An analytical method is presented for determining the potential impact that the connection of a single new generator may have upon the performance of a transmission system under balanced three-phase fault conditions. Expressions are derived that demonstrate the dependence of the system-wide fault behaviour of the modified network upon both the sub-transient or short circuit impedance of the new generator/transformer and the configuration of the original network. From these expressions sensitivity factors are developed that characterise the potential impact that the connection of the new generator can have upon network fault behaviour. The procedure is derived in general terms and verified with results from simulation of a 17-bus test system. The results emphasize that the impact of the generator/transformer is often more contingent upon the network characteristics at the point of connection rather than the subtransient/short circuit impedances of the new elements.
Keyword power system faults
sensitivity analysis
fault currents
overvoltages
power generation planning
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Unknown

 
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Created: Thu, 10 Mar 2011, 14:30:58 EST