NDLI: A Dynamic Voltage Restorer Equipped With a High-Frequency Isolated DC

Content Provider	IEEE Xplore Digital Library
Author	Jimichi, T. Fujita, H. Akagi, H.
Copyright Year	1972
Abstract	This paper presents a dynamic voltage restorer (DVR) that is characterized by the use of a high-frequency unidirectional isolated dc-dc converter. A traditional DVR has a large and bulky series transformer even for three-phase low-voltage up to 480-V applications because the transformer operates at the line frequency (50 or 60 Hz). The emergence of state-of-the-art semiconductor devices and magnetic cores has driven power electronic engineers to develop compact high-frequency isolated dc-dc converters. This paper discusses the control and performance of a low-voltage DVR using a high-frequency isolated dc-dc converter. The high-frequency (20-kHz) transformer in the dc-dc converter is much smaller, for example, one-hundredth, in volume than the line-frequency transformer. Moreover, connecting the shunt converter to the load side brings a significant reduction in energy-storage capacity to the DVR. Experimental results obtained from a three-phase three-wire 200-V 5-kW laboratory system confirm the viability and effectiveness of the system configuration.
Sponsorship	IEEE Industry Applications Society
Starting Page	169
Ending Page	175
Page Count	7
File Size	877258
File Format	PDF
ISSN	00939994
Volume Number	47
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Converters Circuit faults Magnetic cores Power quality MOSFETs Voltage fluctuations Insulated gate bipolar transistors voltage sags Dynamic voltage restorers (DVRs) highfrequency transformers isolated dc–dc converters magnetic-flux bias series transformers
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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