The Research Of Distribution Network Fault Automatic Handling

The distribution network fault automatization dealing is mainly to the distribution of automation control fault handling. Because consumers 10KV power of the voltage level is common, and railway electricity from shut transfixion line is relatively complex. Based on the distribution of electricity from consumers 10KV railway line, for example, through close put forward different range PaiChuFa fault, and on the basis of the application of SCM design research PIC16F877 fault automatically detect processor.Firstly, this paper introduces the common fault locating methods of conventional, and puts forward the method of positioning accuracy of conventional error factors, and the adaptability of them are compared. In order to effectively handle along the influence of the positioning accuracy, concentrated parameter and distribution parameters according to two line model, and applied to PSCAD/EMTDC two parameters of the model of fault and big load simulation and comparison of the simulation, and the current signals, and the application of extracting the MATLAB wavelet analysis and simulation. The obtained through line between failure propagation distance interval changes and time data and waveform relation data.Secondly, in view of the above, the simulation data and waveform chip to detect faults and developed rapidly in the general break fault automatically detect interval switch, its core processor based on wavelet transform algorithm is given priority to the data that is current signal, and mainly through several controller online collaboration control realization linkage, further to the fault interval as small scope.Finally, the application of signal generator, utilizing the above principle simulation phase-to-ground fault of the waveform signal controller, input devices, test execution, the results are proved correctness of the algorithm and principle.Anyhow, based on the common fault locating method based on literature, and on the basis of the current application of circuit simulation software PSCAD/EMTDC power failure on the concentration parameters and distributed parameter model and simulation, the fault data waveform simulation by MATLAB wavelet transform, and further analysis, using the results of the analysis, the control fault automatically detect processor core single-chip microcontroller is studied, and the hardware and software of the design and development.