Comparative Study of 2-phase Low Frequency Triac Converter- and High Frequency Two-stage Matrix Converter Systems

摘要

The paper deals with comparison of the characteristics between two-phase electronic systems: DC/AC/AC high frequency two-stage converter system made of two single-phase matrix converters with variable orthogonal output and low frequency triac converter with phase-control supplied from AC network. Low frequency triacs or thyristor converters can be innovated using switches of semiconductor devices (IGBT). Design of two-stage DC/AC/AC high frequency converter with two-phase orthogonal output using single-phase matrix converter in half-bridge connection operated with the bipolar PWM is also introduced. The advantage of such system is less number of semiconductor devices. Simulations results are given at the end of the paper.