Operating characteristics of PWM converter-inverter for induction motor drives

Author

Nonaka, Sakutaro ; Neba, Yasuhiko

Author_Institution

Dept. of Electr. Eng., Kyushu Univ., Fukuoka, Japan

fYear

1988

fDate

11-14 April 1988

Firstpage

1276

Abstract

An induction motor drive system composed of a converter with sinusoidal inputs and a current-source inverter with sinusoidal output voltage and current is presented. A PWM strategy is applied to both the converter and the inverter using GTOs (gate turn-off thyristors). The output DC link voltage of the converter is controlled by changing the pulsewidth of, and shifting the PWM pattern. Experimental results for a 2.2 kW induction motor and analytical results using state variable methods are reported for the basic steady-state characteristics of the input current, the input power factor, and the DC link voltage in the converter. The proposed system should provide smooth and noiseless drives for AC motors as well as an ideal variable power supply system for AC power sources.<>

Keywords

electric drives; induction motors; invertors; power convertors; pulse width modulation; 2.2 kW; AC motors; DC link voltage; GTOs; PWM converter-inverter; current-source inverter; electric drives; induction motor drives; power convertors; pulsewidth; state variable methods; steady-state characteristics; thyristor applications; variable power supply system; AC motors; Induction motor drives; Induction motors; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Reactive power; Steady-state; Thyristors; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1988. PESC '88 Record., 19th Annual IEEE

Conference_Location

Kyoto, Japan

Type

conf

DOI

10.1109/PESC.1988.18272

Filename

18272