Development of a wavelet-based algorithm to detect and determine ...

List of Figures
2.1 Connections of SIMEAS R . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 OSCOP P parameterizing . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.3 OSCOP P evaluation RMS values shows a earth-fault in L1 . . . . . . . . 13
2.4 OSCOP P evaluation analog value shows the same earth-fault in L1 as
in Figure 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1 SIMEAS R in the testing setup with laptop . . . . . . . . . . . . . . . . . 15
3.2 SIMEAS R in the laboratory use at the Department for Electrical Power
Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.1 Structure chart of the first program part for reading the configuration file 29
5.2 Structure chart of the second program part for reading the data file . . . 30
6.1 Wavelet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.2 Examples of wavelets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.3 Mother wavelet and wavelet family . . . . . . . . . . . . . . . . . . . . . 39
6.4 Property of a wavelet base . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.5 Different signals but same Fourier transform representation . . . . . . . 41
6.6 Wavelet Transform of two different sinusoids . . . . . . . . . . . . . . . . 42
6.7 Wavelet transform, illustration of scale and translation . . . . . . . . . . 43
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