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Modelling of two-phase single-leg matrix converter using lt spice circuit simulator

Dobrucky B., Konarik R.

TTS Technika Transportu Szynowego

2016

R. 23, nr 12

69--72

The paper deals with two-phase one-leg matrix converter with minimum switching devices. Main emphasis is laid on modelling and simulation of a new type of single-phase supplied AC/AC converter with two phase outputs. It consists of one-leg half-bridge matrix converter loaded by the resistive-inductive load in series connection. As harmonic analysis of the voltage of both phases gives very high value of total harmonic distortion (roughly 86 %) the current waveforms should be improved by using of serial LC filter – which brings much more suitable value of THD (5 % - 8 %) acceptable for application. Real simulation results using LT Spice circuit simulator under RL loading are given in the paper