The Transactions of the Korean Institute of Electrical Engineers (대한전기학회논문지)
- Volume 32 Issue 12
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- Pages.435-440
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- 1983
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- 0254-4172(pISSN)
An Effective Fault Analysis Method in Large Scale Power System
대전력계통의 고장해석에 관한 효추적인 계산방법에 관한 연구
Abstract
The methods of forming the bus impedance matrix, which is mainly employed in fault analysis of power system, can be generally classified in catagories, (1) the one being the inverse matrix of bus admittance matrix, and (2) the other the bus impedance matrix succesive formation method by particular algorithms. The former method is theouetically elegant, but the formation and inverse of complex bus admittance matrix for large power system requires too much amounts of computer memory space and computing time. The latter method also requires too much memory space. Therefore, in this paper, an algorithm and computer program is introduced for the formation of a sparse bus impedance matrix which generates only the matching terms of the admittance matrix. So, this method can reduce the computer memory and computing time, and can be applied to fault analysis of large power system by small digital computer.
Keywords