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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.
Title The Inverter Control Method Using The Voltage Sag Compensation algorithm
Authors Hong-Min Yun ; Jin-Yong Bae ; Yong Kim
DOI http://dx.doi.org/10.5207/JIEIE.2012.26.12.062
Page pp.62-67
ISSN 1225-1135
Keywords Voltage Source Inverter ; SAG ; Ride-through ; Compensation Algorithm
Abstract In this paper general purpose voltage source inverter drives are equipped with an under-voltage protection mechanism, causing the system to shut down within a few milliseconds after a power interruption in the main input sources. When a power interruption occurs finish, if the system is a large inertia restarting the load a long time is required. This paper suggests modifications in the control algorithm in order to improve the sag ride-through performance of ac inverter. The new proposed strategy recommends maintaining the DC-link voltage constant at the nominal value during a sag control algorithm, experimental results are presented.