Title :
Are anti-aliasing filters necessary for PID sampled-data control?
Author :
Blachuta, Marian J. ; Grygiel, Rafal T.
Author_Institution :
Dept. of Autom. Control, Silesian Univ. of Technol., Gliwice, Poland
Abstract :
In the paper the role of anti-aliasing filters is revised based on control quality assessment of PID controllers when using average sampling versus instantaneous sampling without any analog filter. Numerical results show that contrary to common belief possible benefits gained from anti-aliasing devices are very restricted.
Keywords :
antialiasing; filtering theory; sampled data systems; sampling methods; three-term control; PID controllers; PID sampled-data control; analog filter; antialiasing devices; antialiasing filters; average sampling; control quality assessment; instantaneous sampling; Control systems; Equations; Kalman filters; Mathematical model; Noise; Noise measurement; Reactive power;
Conference_Titel :
Control Conference (ECC), 2009 European
Conference_Location :
Budapest
Print_ISBN :
978-3-9524173-9-3
