Title :
Voltage swell/sag compensation with single-phase Z-source AC/AC converter
Author :
Nguyen, Minh-Khai ; Jung, Young-Gook ; Lim, Young-cheol
Author_Institution :
Chonnam Nat. Univ., Gwangju, South Korea
Abstract :
This paper proposes a new type of voltage swell/sag compensator based on single-phase Z-source AC/AC converter. The proposed topology employs a pulse width modulation (PWM) Z-source AC/AC converter along with a transformer. A commutation strategy to drive the AC/AC converter is employed to realize snubberless operation. Circuit analysis is provided. Simulation and experimental results at 20% voltage swell, 40% voltage swell and 60% voltage sag are shown.
Keywords :
AC-AC power convertors; PWM power convertors; power supply quality; PWM converter; pulse width modulation converter; single-phase Z-source AC-AC converter; voltage sag compensation; voltage swell compensation; Bidirectional control; Capacitors; Circuit topology; Insulated gate bipolar transistors; Power quality; Pulse transformers; Pulse width modulation; Pulse width modulation converters; Switches; Voltage fluctuations; Dynamic voltage restorers (DVR); PWM AC/AC converter; Voltage swell/sag compensation; Z-source converter;
Conference_Titel :
Power Electronics and Applications, 2009. EPE '09. 13th European Conference on
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-4432-8
Electronic_ISBN :
978-90-75815-13-9
