Title :
Power supply quality improvement with a dynamic voltage restorer (DVR)
Author :
Wunderlin, Toni ; Amhof, David ; Dahler, Peter ; Guning, H.
Author_Institution :
ABB Power Pte. Ltd., Singapore
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 the 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 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
Keywords :
PWM power convertors; electrical faults; power supply quality; power system analysis computing; power system protection; thyristor convertors; IGCT technology; digital simulation; dynamic voltage restorer; fault duration; gate technology; performance assessment; permissible line voltage deviations; power supply quality improvement; real-time simulator; response time; transparent anode GTO; voltage dip magnitude; voltage dips mitigation; Circuit faults; Delay; Digital simulation; Electricity supply industry; Medium voltage; Power quality; Protection; Switchgear; Switching converters; Voltage fluctuations;
Conference_Titel :
Energy Management and Power Delivery, 1998. Proceedings of EMPD '98. 1998 International Conference on
Print_ISBN :
0-7803-4495-2
DOI :
10.1109/EMPD.1998.702730
