Application of db4 Lifting Wavelet in Power Network Fault Detection
Shujuan Yuan · Microcomputer Information · 2011
Power network is becoming more and more complicated,which requires higher real time and precision of the fault detection.Db4 lifting wavelet is proposed,containing update,predict and update three steps.The algorithm requires less memory and is easy to implement,which can satisfy the need of power network detection.Simulink is used to simulate the power network and the lifting algorithm is used to analyze the output.The test demonstrates that the algorithm can detect the power network fault precisely.