Fault Diagnose Algorithm of Distribution System by Continuous Signals Based on Rough Sets
Huaguang Zhang · Proceedings of the CSEE · 2006
A continuous attribute discretization of the electric power distribution system is put forward based on the breakpoint importance, which is proved effectively. The distinguish breakpoint as evaluation standard of discretization is applied based on choice coefficient, sensitive coefficient and support value. And the degree is considered to be the sufficient condition. It can be seen that the algorithm is effective. In the fault diagnosis system of electric power distribution system, it is very important to make unified reduction of continuous and discretizing signals with the rough sets at first. In these way, we can make the important analogues of distribution system such as voltage, current take part in the fault diagnosis, and improve the precision of fault identification. At the same time, one possible solution can be found for determination of the critical stable status of distribution system.