Title :
Adaptive rejection of the preponderant harmonic of a pulsed flow
Author :
Micheau, Phillippe ; Coirault, Patrick ; Hardouin, Laurent ; Tartarin, Jacky
Author_Institution :
Ecole Nat. Superieure d´´Ingenieurs de Poitiers, France
fDate :
7/1/1996 12:00:00 AM
Abstract :
Pulsed flows, characterized by periodic fluctuations in flow rate, are noise-productive, but an oscillating valve positioned in the exhaust duct can attenuate the main harmonic of pulsed flow. We define a valve adaptive control in the frequency domain implemented by a digital signal processor for experimental purposes. Results show noise reduction at ground level and tracking of process unstationarity
Keywords :
adaptive control; digital signal processing chips; flow control; pulsatile flow; valves; adaptive rejection; digital signal processor; exhaust duct; frequency-domain valve adaptive control; harmonic attenuation; noise; noise reduction; oscillating valve; periodic fluctuations; preponderant harmonic; process unstationarity tracking; pulsed flow; Active noise reduction; Adaptive control; Adaptive filters; Feedback; Finite impulse response filter; Frequency; Low-frequency noise; Power harmonic filters; Sampling methods; Valves;
Journal_Title :
Control Systems Technology, IEEE Transactions on
