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Problems and countermeasures of Ningxia power grid on-line safety analysis system
Author(s): 
Pages: 39-41,68
Year: Issue:  5
Journal: Ningxia Electric Power

Keyword:  power systemon-line analysisstability calculationassistant decision;
Abstract: In the light of practical situation of Ningxia Power Grid,makes detailed analysis on existing problems of on-line safety analysis system,puts forward the following solution measures as to offer auxilary decision only for single fault,increase safety and stability strategy in system,by system reciprocity obtains real-time data of the whole grid,evaluates section steady margin under the situation of anticipating fault unsafety,using virtual node and small branch realize the correct discrimination of 3/2 bus fault,etc. The application results show that the improved on-line safety analysis has already obtained some achievements in practical application of Ningxia Power Grid, furtherly improves on-line safety analysis level of Ningxia power grid.
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