Title :
A model reference adaptive PWM technique
Author :
Joos, G. ; Ziogas, P.D. ; Vincenti, D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada
Abstract :
A model reference adaptive pulse-width-modulation (PWM) technique is presented and analyzed. With this technique, the near optimal inverter gating signals are determined through a closed-loop process which compares a reference signal to a feedback signal derived from a built-in reference model of the load. In addition to its simplicity of implementation, the technique has the advantages of inherent controlled constant volts per hertz (V/f) radio operation and filter-free operation with free-running carrier. Such features are of importance in variable-speed AC drive applications where V/f control increases the control circuit complexity and carrier frequency jumps cause harmful torque/speed transients
Keywords :
closed loop systems; model reference adaptive control systems; pulse width modulation; variable speed drives; closed-loop process; feedback signal; filter-free operation; free-running carrier; model reference adaptive PWM technique; optimal inverter gating signals; reference signal; speed transients; transient torque; variable-speed AC drive; volts per hertz control; Complexity theory; Feedback; Load modeling; Pulse width modulation; Pulse width modulation inverters; Radio control; Radiofrequency integrated circuits; Signal processing; Space vector pulse width modulation; Torque control;
Conference_Titel :
Power Electronics Specialists Conference, 1989. PESC '89 Record., 20th Annual IEEE
Conference_Location :
Milwaukee, WI
DOI :
10.1109/PESC.1989.48550
