Title :
Improved efficiency constant output power rectifier
Author :
Dawes, Warwick G. ; Lyne, Alfred
Author_Institution :
Emerson Energy Syst. Pty. Ltd., Johannesburg, South Africa
Abstract :
A control method for improving the efficiency of constant output power telecommunication rectifiers by varying the power factor correction (PFC) boost voltage is described. Experimental results obtained from a 1500 W rectifier are used to demonstrate that the losses at the worst case operating point can be reduced by around 10% and the efficiency at nominal operating conditions can be improved by around 0.6%. An implementation of the control methodology is proposed and an overview of the tradeoffs between dynamic characteristics and minimum losses is made
Keywords :
power factor correction; rectifying circuits; telecommunication power supplies; voltage control; 1500 W; PFC boost voltage variation; constant output power rectifier; control method; dynamic characteristics; efficiency; losses; minimum losses; nominal operating conditions; power factor correction; telecommunication rectifiers; worst case operating point; Boosting; Bridge circuits; Power generation; Power system dynamics; Power systems; Rectifiers; Telecommunication control; Temperature distribution; Topology; Voltage control;
Conference_Titel :
Telecommunications Energy Conference, 2000. INTELEC. Twenty-second International
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-6407-4
DOI :
10.1109/INTLEC.2000.884221
