Harmonics and Interharmonics Estimation of a Passive Magnetic Fault Current Limiter Using Wavelet Transform

摘要

This paper presents the harmonics and interharmonics analysis of a passive magnetic fault current limiter (MFCL). This device limits the current at post fault without affecting the pre fault state of the system. The harmonics and interharmonics estimation of a non-stationary signal generated by FCL has been investigated using Wavelet transform and FFT. Continuous wavelet transform (CWT) and discrete wavelet packet transform (DWPT) has been applied for estimation of harmonics and interharmonics in MFCL under normal and fault conditions.