Title :
A new ultra high-speed protection scheme based on wavelet analysis
Author :
Yang, Ming-Yu ; Yao, Wan-ye ; Wang, Zeng-ping ; Zhang, Ju ; Jiao, Yan-Jun
Author_Institution :
Key Laboratory of Power Syst. Protection & Dynamic Security Monitoring & Control, North China Electr. Power Univ., Beijing
fDate :
Nov. 29 2005-Dec. 2 2005
Abstract :
A new ultra high-speed protection scheme is proposed in this paper. Using wavelet transform with multiresolution analysis, the current signals is decomposed into a series of detailed wavelet components. The spectral energies of the wavelet components are calculated and then employed to detect the faults. Characteristics of the proposed ultra high-speed protection algorithm are analyzed and results of simulation studies are given. The results show that the proposed algorithm is promising and easy to implement for computer relaying application
Keywords :
fault location; power system transient stability; power transmission faults; power transmission protection; wavelet transforms; computer relaying; fault detection; multiresolution analysis; ultra high-speed protection scheme; wavelet analysis; wavelet transform; Algorithm design and analysis; Analytical models; Computational modeling; Computer applications; Fault detection; Multiresolution analysis; Protection; Protective relaying; Wavelet analysis; Wavelet transforms; Transient based protection; signal energy; transient current wavelet transform;
Conference_Titel :
Power Engineering Conference, 2005. IPEC 2005. The 7th International
Conference_Location :
Singapore
Print_ISBN :
981-05-5702-7
DOI :
10.1109/IPEC.2005.206953
