A model reference adaptive PWM technique

Author

Joos, Geza ; Ziogas, Phovias D. ; Vincenti, D.

Author_Institution

Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada

Volume

5

Issue

4

fYear

1990

fDate

10/1/1990 12:00:00 AM

Firstpage

485

Lastpage

494

Abstract

A model reference adaptive (MRA) pulsewidth-modulated (PWM) technique for invertor switching applications 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 proposed PWM technique has the advantages of inherent controlled constant volts-per-Hertz (V/f) ratio operation and jitter-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 where carrier frequency jumps cause harmful torque/speed transients

Keywords

AC motors; digital control; invertors; machine control; model reference adaptive control systems; pulse width modulation; switching; variable speed drives; closed-loop; feedback; gating signals; machine control; model reference adaptive PWM technique; switching; torque/speed transients; variable-speed AC-drive; Complexity theory; Load modeling; Pulse width modulation; Pulse width modulation inverters; Signal processing; Solid state circuits; Switching converters; Switching frequency; Torque control; Voltage;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.60693

Filename

60693