Title :
Digital system for 1/f fluctuation-speed control of a small-fan motor
Author :
Oguchi, Kimio ; Adachi, H. ; Kusakabe, T. ; Agu, M.
Author_Institution :
Dept. of Electr. Eng., Ibaraki Univ., Japan
fDate :
3/1/1988 12:00:00 AM
Abstract :
To produce a comfortable breeze similar to a natural one, a digital open-loop control system was utilized to control the speed of a small fan motor with 1/f fluctuation. The system was modeled as a first-order lag element with a time constant of 1.1 s. The output was controlled by commands and produced 1/f fluctuations, even though it was an open-loop system when the holding time of the data for 1/f fluctuation was set at more than 2 s
Keywords :
AC motors; digital control; small electric machines; velocity control; 1/f fluctuation-speed control; digital open-loop control system; first-order lag element; holding time; small-fan motor; time constant; Circuit noise; Control systems; Digital control; Digital systems; Fluctuations; Humans; Interchannel interference; Open loop systems; Phase noise; Signal analysis; Timing jitter;
Journal_Title :
Proceedings of the IEEE
