TY - GEN
T1 - Applications of wavelet transform and fuzzy neural network on power quality recognition
AU - Liao, Chiung Chou
AU - Yang, Hong-Tzer
AU - Lin, Ying Chun
PY - 2008/11/12
Y1 - 2008/11/12
N2 - The wavelet transform coefficients (WTCs) contain plenty of information needed for transient event identification of power quality (PQ) events. However, adopting WTCs directly has the drawbacks of taking a longer time and too much memory for the recognition system. To solve the abovementioned recognition problems and to effectively reduce the number of features representing power transients, spectrum energies of WTCs in different scales are calculated by Parseval's Theorem. Through the proposed approach, features of the original power signals can be reserved and not influenced by occurring points of PQ events. The fuzzy neural classification systems are then used for signal recognition and fuzzy rule construction. Success rates of recognizing PQ events from noise-riding signals are proven to be feasible in power system applications in this paper.
AB - The wavelet transform coefficients (WTCs) contain plenty of information needed for transient event identification of power quality (PQ) events. However, adopting WTCs directly has the drawbacks of taking a longer time and too much memory for the recognition system. To solve the abovementioned recognition problems and to effectively reduce the number of features representing power transients, spectrum energies of WTCs in different scales are calculated by Parseval's Theorem. Through the proposed approach, features of the original power signals can be reserved and not influenced by occurring points of PQ events. The fuzzy neural classification systems are then used for signal recognition and fuzzy rule construction. Success rates of recognizing PQ events from noise-riding signals are proven to be feasible in power system applications in this paper.
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U2 - 10.1063/1.3008667
DO - 10.1063/1.3008667
M3 - Conference contribution
AN - SCOPUS:55549139813
SN - 9780735405813
T3 - AIP Conference Proceedings
SP - 19
EP - 24
BT - International Conference on Power Control and Optimization
T2 - International Conference on Power Control and Optimization, PCO 2008
Y2 - 18 July 2008 through 20 August 2008
ER -