TY - JOUR N2 - The paper presents a concept of a control system for a high-frequency three-phase PWM grid-tied converter (3x400 V / 50 Hz) that performs functions of a 10-kW DC power supply with voltage range of 600÷800 V and of a reactive power compensator. Simulation tests (in PLECS) allowed proper selection of semiconductor switches between fast IGBTs and silicon carbide MOSFETs. As the main criterion minimum amount of power losses in semiconductor devices was adopted. Switching frequency of at least 40 kHz was used with the aim of minimizing size of passive filters (chokes, capacitors) both on the AC side and on the DC side. Simulation results have been confirmed in experimental studies of the PWM converter, the power factor of which (inductive and capacitive) could be regulated in range from 0.7 to 1.0 with THDi of line currents below 5% and energy efficiency of approximately 98.5%. The control system was implemented in Texas Instruments TMS320F28377S microcontroller. L1 - http://journals.pan.pl/Content/113325/PDF/83.pdf L2 - http://journals.pan.pl/Content/113325 PY - 2019 IS - No 4 EP - 624 DO - 10.24425/ijet.2019.129821 KW - Three-phase PWM rectifier KW - reactive power compensator KW - silicon carbide MOSFET KW - bidirectional power flow KW - direct power control (DPC) KW - DC voltage regulation KW - power factor correction (PFC) KW - LCL filter A1 - Barlik, Roman A1 - Grzejszczak, Piotr A1 - Leszczyński, Bernard A1 - Szymczak, Marek PB - Polish Academy of Sciences Committee of Electronics and Telecommunications VL - vol. 65 DA - 2019.11.03 T1 - Investigation of a High-efficiency and High frequency10-kW/800-V Three-phase PWM Converter with Direct Power Factor Control SP - 619 UR - http://journals.pan.pl/dlibra/publication/edition/113325 T2 - International Journal of Electronics and Telecommunications ER -