PT Journal AU Zaskalicka, M Zaskalicky, P Benova, M Abdalmula, M Dobrucky, B TI Analysis of Complex Time Function of Converter Output Quantities Using Complex Fourier Transform/Series SO Communications - Scientific Letters of the University of Zilina PY 2010 BP 23 EP 30 VL 12 IS 1 DI 10.26552/com.C.2010.1.23-30 WP https://komunikacie.uniza.sk/artkey/csl-201001-0005.php DE no keywords SN 13354205 AB The paper deals with the complex- and discrete Fourier transform which has been considered for both three- and two phase orthogonal voltages and currents of systems. The investigated systems are power electronic converters supplying alternating current motors. Output voltages of them are strongly non-harmonic ones, so they must be pulse-modulated due to requested nearly sinusoidal currents with low total harmonic distortion. Modelling and simulation experiment results of half-bridge matrix converter for both steady- and transient states are given under substitution of the equivalence scheme of the electric motor by resistive-inductive load and back induced voltage. The results worked-out in the paper confirm a very good time-waveform of the phase current and results of analysis can be used for fair power design of the systems. ER