Voltage Sag Ride-Through for Active Rectifiers

K.D. Pietiläinen and M. Leksell (Sweden)

Keywords

Power quality, voltage sags, ride through, re active power compensation

Abstract

: In this paper we design a converter control for voltage sag ride-through with good load disturbance rejection. The algorithm is intended to improve the perfor mance of the standard industrial motor drive with intermedi ate dc-voltage link. There are four options for ride-through, dependent on the strength of the supply grid. A further improvement of the ride-through has been achieved by also considering the driven load.

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