期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2014
卷号：64
期号：1
出版社：Journal of Theoretical and Applied
摘要：In this paper, Dynamic Voltage Restorer using Z source AC - AC converter has been proposed to mitigate the voltage sag/ swell. Dynamic Voltage Restorer (DVR) is an effective custom power devices used to protect the sensitive loads against voltage sag and swell. The three phase Z source AC-AC converter has been employed to perform the direct AC/AC conversion. The Z source network can produce any desired output AC voltage, which is a greater or less voltage than the line voltage. Hence it enhances the voltage restoration capability of DVR. The gating pulses for the bidirectional switch are generated using sinusoidal PWM technique and its associated circuitry. This proposed topology is simulated under voltage sag /swell using Matlab / Simulink and the simulation results are presented to show that the system effectively compensates the voltage sag/ swell.
关键词：Dynamic Voltage Restorer; Voltage Sag; Voltage Swell; Z- Source AC-AC Converter.
