전브리지 공진형 인버터에 의한 단상 유도전동기의 디지탈제어에 관한 연구(I) -저주파수에서 전브리지 공진형 이버터의 전류특성에 대하여-

A Study on the Digital Control of Single Phase Induction Motor Driven by the Full Bridge Resonant Inverter(I) - The Current Characteristics of Full - bridge Resonant Inverter at Low Frequency -

The application of A.C. motor to servo system is rapidly increased according to the recent advance of power electronics and digital control techniques. The induction motor which has a simple structure and needs less maintenance is used in the industrial field for the variable speed and position control recently. In this paper, the current characteristic of the full-bridge resonant inverter is studied by comparing with the computer simulation and the laboratory experiment when the ratio of forced frequency to the natural frequency and the ratio of conduction time to the period at the given frequency is changed. And then, the full-bridge resonant inverter is applied to the speed control of single phase induction motor.