HIGH SPEED CALCULATIONS OF SHORT CIRCUIT FOR POWER SYSTEMS WITH VARIABLE STRUCTURES AND PARAMETERS
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Abstract:
This paper presents a new method for digital simulation of equivalent circuit parameters and port currents of the short circuit fault port for each sequence networks in power systems with variable configuration and parameters. If the electric values for single-line-to-ground short ciruit are calculated in detail,the other faults at the same location can be rapidly obtained by using the proportional coefficients of the same sequence port current. In this method,the modifications of Z-bus or Y-bus matrices for each sequence network, and the repeated of calculations of the short circuit calculation have been completly avoided.
