Control of Current Phase Advancing in Single-Leg Power Converters with the Use of Switched Capacitors

Roman Konarik, Jozef Sedo, Branislav Dobrucky and Michal Prazenica
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Roman Konarik: Department of Mechatronics and Electronics, Faculty of Electrical Engineering, University of Zilina, 010 26 Zilina, Slovakia
Jozef Sedo: Department of Mechatronics and Electronics, Faculty of Electrical Engineering, University of Zilina, 010 26 Zilina, Slovakia
Branislav Dobrucky: Department of Mechatronics and Electronics, Faculty of Electrical Engineering, University of Zilina, 010 26 Zilina, Slovakia
Michal Prazenica: Department of Mechatronics and Electronics, Faculty of Electrical Engineering, University of Zilina, 010 26 Zilina, Slovakia

Energies, 2018, vol. 11, issue 10, 1-24

Abstract: This paper deals with the control of current phase advancing in single-leg voltage source inverters (VSI) and matrix converters with a two-phase output. The phase shift of the current in the auxiliary phase is set with the use of switched capacitors. Two distinctive control methods are used for the current phase advancing, open-loop control and closed-loop control. In addition, a new averaging method is derived for the calculation of the switched capacitance used in the open-loop control. The practical use of the designed control methods with the switched capacitor is shown in simulations and experimental verifications on a single-leg matrix converter with a passive and active load (induction motor).

Keywords: matrix converter; single-leg; switched capacitors; feedback control; open-loop; closed-loop; control systems; averaging model; phase control; energy conservation; two-phase (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
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