Non-direct-ground system single-phase-to-ground fault identification instrument based on DSP
Peng Li · Dianli zidonghua shebei · 2004
A solution based on DSP ( Digital Signal Processor ) according to the requisition of wavelet algorithm in the single - phase - to - earth fault protection is presented.The realization principle ,the hardware architecture and its operation results are introduced.The advantages of DSP ,digital signal processing function and high calculating speed ,make the synthetical intellective algorithm possible to be fast processed in time.The operation results show that this soft - hardware platform has fast calculation speed ,excellent disturbances - proof ability and good running stability ,which may become an ideal earth - fault selection platform for its better performance - price ratio.