Research on Microcomputer Inverse Time Over-Current Protection Algorithm of Underground Low-Voltage Power-System
Abstract：In order to solve the problem of C=0.02 of general anti-time in microcomputer that cannot implement directly,the Taylor expansion method is being chosen and selects the general anti-time and thermal over-load（no storage） anti-time for experiment.On the basis of analyzing the existing problems of anti-time protection＇s general mathematical model and traditional anti-time algorithm,the inverse time over-current protection algorithm suited for Microcomputer is proposed.The look-up table method and Taylor expansion method are analyzed.The experiment proved that the Taylor expansion method can achieve exactly the features of microprocessor-based inverse time.
Keywords：inverse time over-currentMicrocomputer protectionlook-up table methodTaylor expansion method
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 8-11 )