Title :
PWM strategy of single-phase to three-phase matrix converters for reducing a number of commutations
Author :
Yamashita, Tomomi ; Takeshita, Takaharu
Author_Institution :
Nagoya Inst. of Technol., Nagoya, Japan
Abstract :
This paper presents a novel PWM strategy of single-phase to three-phase matrix converters with a small capacitor compensating for single-phase instantaneous electric power fluctuation. The output voltage and input current references of the small capacitor to obtain unity input power factor are derived. The PWM strategy with the only four commutations of all the three phases during a control period is proposed. The design method of the small capacitor is derived from the control ranges of the output voltage and current. The effectiveness of the proposed PWM strategy has been verified by experiments.
Keywords :
AC-AC power convertors; PWM power convertors; commutation; matrix convertors; power factor; PWM strategy; commutations; input current references; output voltage references; single-phase instantaneous electric power fluctuation; single-phase matrix converters; small capacitor compensation; three-phase matrix converters; unity input power factor; Capacitors; Circuits; Commutation; Fluctuations; Matrix converters; Power supplies; Pulse width modulation; Pulse width modulation converters; Reactive power; Voltage control; PWM strategy; output control range; power fluctuation compensation; single-phase to three-phase matrix converter;
Conference_Titel :
Power Electronics Conference (IPEC), 2010 International
Conference_Location :
Sapporo
Print_ISBN :
978-1-4244-5394-8
DOI :
10.1109/IPEC.2010.5543790
