Characteristic Analyses of a Cycloconverter with a LC Resonant Circuit For a Induction Motor Drive

LC 공진회로를 이용한 유도전동기 구동용 사이크로콘버터의 특성해석

This paper presents a study on the cycloconverter with a LC resonant circuit for a induction motor drive which keeps the Input displacement factor at 1.0 by controlling real and reactive power independently under any load conditions. The input and the output current waveforms are sinusoid, and consequently Input power factor is nealy 1.0. In this paper, the operating principles of this cycloconverter, the control algorithms, the waveform analyses, and the characteristics of the system are described. The volts/hertz control of the induction motor is experimented, and the reasonability of this proposal is verified.