Title :
Three-phase reactive power compensation using a single-phase AC/AC converter
Author_Institution :
Copley Controls Corp., Westwood, MA, USA
fDate :
9/1/1999 12:00:00 AM
Abstract :
A new control strategy and topology for VAr compensation is presented and analyzed. It treats a three-phase power system as two energy ports and uses one single-phase bidirectional AC/AC power converter to transfer reactive energy between the two ports to produce three-phase reactive power. The compensated reactive power can be leading or lagging. Hysteresis control is investigated as a means of current modulation. The system has fast transient response capability, and one unit of AC/AC converter power generates 2.412 units of reactive power. The characteristics of the topology and predicted results are verified experimentally
Keywords :
AC-AC power convertors; compensation; control system analysis; control system synthesis; power system control; reactive power control; transient response; control design; control performance; control simulation; control strategy; directional AC/AC power converter; lagging VAr; leading VAr; reactive energy transfer; single-phase AC/AC power converter; three-phase VAr compensation; topology characteristics; transient response; Circuit topology; Energy exchange; Hysteresis; Inverters; Power generation; Reactive power; Reactive power control; Resonance; Switches; Transient response;
Journal_Title :
Power Electronics, IEEE Transactions on
