Proceedings ArticleDOI
Power supply quality improvement with a dynamic voltage restorer (DVR)
A. Kara,P. Dahler,D. Amhof,Horst Dr. Grüning +3 more
- Vol. 2, pp 986-993
TLDR
In this paper, the authors present the technical aspects of designing a dynamic voltage restorer to meet the stringent requirements of voltage dips mitigation with respect to the magnitude of voltage dip, fault duration, permissible line voltage deviations and response time.Abstract:
This paper presents the technical aspects of designing a dynamic voltage restorer to meet the stringent requirements of voltage dips mitigation with respect to the magnitude of voltage dip, fault duration, permissible line voltage deviations and response time. An introduction to IGCT technology based on latest transparent anode GTO (T-GTO) and gate technology is given. The performance of the DVR based on digital simulations is discussed. A description of a hardware-based real-time simulator model for the performance assessment of DVR in voltage dips mitigation is presented. The results of the real-time simulator are compared with the digital simulations. Finally, control and protection concepts for the DVR are highlighted.read more
Citations
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Journal ArticleDOI
Voltage sag detection technique for a dynamic voltage restorer
TL;DR: In this article, a matrix-based voltage sag detection method is proposed to detect the start and end of a voltage sag and any associated phase shift in the main control system of a DVR.
Journal ArticleDOI
Dynamic Voltage Restorer Utilizing a Matrix Converter and Flywheel Energy Storage
Bingsen Wang,Giri Venkataramanan +1 more
TL;DR: In this article, a series power conditioning system using a matrix converter with flywheel energy storage is proposed to cope with voltage sag problem, which utilizes a single ac/ac power converter for the grid interface as opposed to a more conventional ac/dc/ac converter, leading to higher power density and increased system reliability.
Journal ArticleDOI
Optimized Control Strategy for a Medium-Voltage DVR—Theoretical Investigations and Experimental Results
TL;DR: In this paper, an optimized control strategy is presented to reduce the needed injection voltage of the DVR and concurrently to mitigate the transient distortions at the load side, which can reduce the power consumption and improve the utilization of the storage system.
Journal ArticleDOI
An overview of power quality enhancement techniques applied to distributed generation in electrical distribution networks
Yahya Naderi,Yahya Naderi,Seyed Hossein Hosseini,Seyed Hossein Hosseini,Saeid Ghassem Zadeh,Behnam Mohammadi-Ivatloo,Juan C. Vasquez,Josep M. Guerrero +7 more
TL;DR: A thorough survey is done on power quality enhancement devices with emphasis on ancillary services of multi-functional DGs and a couple of thorough comparisons are done between the available techniques considering the nature, capabilities, advantages and implementation costs.
Journal ArticleDOI
Analysis and design of a new voltage sag compensator for critical loads in electrical power distribution systems
TL;DR: In this article, a new voltage sag compensator for powering critical loads in electric distribution systems is discussed, which employs a pulsewidth modulation AC-AC converter (four insulated gate bipolar transistors per phase) along with an autotransformer.