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A novel hybrid protection algorithm, based on traveling wave protection principle and boundary protection principle for a monopolar HVDC line is proposed. Stationary wavelet transform (SWT) is adopted in the traveling wave protection to process the dc signal and then wavelet modulus maxima are used to further represent the useful traveling wave signal. The boundary protection principle based on SWT...
Relays usually need to be tested under a variety of fault and non-fault scenarios. In order to better achieve this goal, relay testing simulation tools based on EMTP/ATP combined with MATLAB/C/FORTRAN have been studied by a few researchers. However, there is hardly a relay testing tool designed for PSCAD/EMTDC. An advanced simulation tool based on PSCAD and MATLAB for relay testing is proposed in...
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