Analysis And Research On The Data Of Fault Recording

The recorder is one of main devices which provide data to analyze all kinds of power sysytem states. It has very important practical value for operators to analyze the system condition under normal and fault states and treat faults according to the data that the recorder records.In my paper, the main characteristic of electric data is abstracted and they provide basis for analysis function automatically by programming according to data recorded . According to the recorder's insufficency and practical requirement, the paper considers fully practical running situation and effection factors, gives author's algorithm ,emphasize on resolving these problem beneath: 1,solution of aperiodic component in fault situation; 2,frequency measurement quickly and accurately ; 3, fault location by adding negative-phase-sequence to modify formulas.Through EMTP and Simulink simulation, the results testify all algorithms' correctness , validity, real-timely and precious.