Title :
High-current DC choppers in the metals industry
Author :
Scaini, Vince ; Ma, Tom
Author_Institution :
SatCon Power Syst., Burlington, Ont., Canada
Abstract :
The chopper rectifier system converts AC power to DC power. The system rectifies AC power by utilizing a step-down transformer and unregulated diode rectifier to provide a bulk DC bus. The chopper circuit modulates the current from the bulk DC bus to provide a regulated output. This paper describes how DC-chopper systems have many operational benefits over conventional diode or thyristor rectifiers
Keywords :
AC-DC power convertors; choppers (circuits); insulated gate bipolar transistors; metallurgical industries; power bipolar transistors; power semiconductor switches; power transformers; rectifying circuits; bulk DC bus; chopper rectifier system; current modulation; operational benefits; regulated output; step-down transformer; unregulated diode rectifier; Choppers; Circuits; Furnaces; Metals industry; Power harmonic filters; Power system harmonics; Power transformers; Reactive power; Rectifiers; Thyristors;
Journal_Title :
Industry Applications Magazine, IEEE
DOI :
10.1109/2943.985678
