Title :
Robust adaptive filtering approach for envelope and harmonic estimation
Author :
Sahoo, H.K. ; Rath, N.P.
Author_Institution :
Dept. of Electron. & Telecommun., IIIT, Bhubaneswar, India
Abstract :
The present study proposes a novel method of tracking the harmonic amplitudes and the envelope of distorted power system signals using robust H∞ Filter. The performance of H∞ Filter has been compared with those of EKF considering signals, which can represent worst case measurement and network conditions in a typical power system. State Space Representation is used to estimate the amplitudes of harmonics of different order as well as modulated signal envelope in presence of AWGN. Results of simulation demonstrate that under identical conditions, the performance of H∞ Filter is better compared to Extended Kalman Filter (EKF).
Keywords :
AWGN; H∞ filters; Kalman filters; adaptive filters; power system harmonics; AWGN; distorted power system signals; extended Kalman filter; harmonic estimation; modulated signal envelope; robust H∞ filter; robust adaptive filtering; state space representation; Estimation; Filtering algorithms; Frequency estimation; Harmonic analysis; Power harmonic filters; AWGN; EKF; H∞ filter; State Space Modeling; Voltage Flicker;
Conference_Titel :
Energy, Automation, and Signal (ICEAS), 2011 International Conference on
Conference_Location :
Bhubaneswar, Odisha
Print_ISBN :
978-1-4673-0137-4
DOI :
10.1109/ICEAS.2011.6147141
