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   Mathematical Model Of The Ac Chopper Operating Under Line Voltage Unbalance. Concept Of Control Method Based On Instantaneous Power Observation   [View] 
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 Author(s)   Korotyeyev Igor, Kasperek Radoslaw 
 Abstract   The goal of this paper is to present new concept of control method of an AC chopper that enables to eliminate inactive components from the load voltage (or current). Principles of operation are illustrated on instance of line voltage unbalance. It is assumed that the load is stationary. Pulsation of instantaneous power is used as the feedback signal. The chopper is controlled as an active filter, so only the basic harmonics of the voltage is delivered to the load. The mathematical model of analyzed AC line conditioning circuit is established, its correctness is confirmed by PSpice simulation tests. Moreover, stability of that closed loop control system is examined. 
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Filename:A27641
Filesize:266 KB
 Type   Members Only 
 Date   Last modified 2006-02-15 by System