Title :
A current-controlled current source type unity power factor PWM rectifier
Author :
Zargari, Navid R. ; Joos, Geza
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada
Abstract :
A current-controlled current-source-type unity power factor PWM (pulse-width-modulated) rectifier is proposed. The three input line currents are controlled independently to obtain sinusoidal currents with low oscillations during transients. Power factor is controlled directly, and unity power factor operation can readily be achieved. Output DC voltage is regulated by varying the amplitude of the AC input current references. The proposed rectifier exhibits excellent steady-state operation and good transient dynamics, a result of the current control method used. A complete analysis of the PWM rectifier and control circuitry is given, and design guidelines are discussed. The theoretical results and design equations are verified by simulation and experiments on a 1.5 kVA prototype unit
Keywords :
circuit oscillations; electric current control; power factor; pulse width modulation; rectifiers; transients; 1.5 kVA; AC input current; PWM rectifier; analysis; current-controlled current source; design; input line currents; oscillations; output DC voltage; sinusoidal currents; steady-state operation; transient dynamics; transients; unity power factor; Circuits; Current control; Equations; Guidelines; Pulse width modulation; Reactive power; Rectifiers; Space vector pulse width modulation; Steady-state; Voltage;
Conference_Titel :
Industry Applications Society Annual Meeting, 1993., Conference Record of the 1993 IEEE
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-1462-X
DOI :
10.1109/IAS.1993.298989
