Title :
A fully software-controlled PWM rectifier with current link
Author :
Kwon, Bong-Hwan ; Min, Byung-Duk
Author_Institution :
Dept. of Electron. & Electr. Eng., Pohang Inst. of Sci. & Technol., South Korea
fDate :
6/1/1993 12:00:00 AM
Abstract :
A fully-software-controlled pulse-width-modulated (PWM) rectifier with a current link is presented. The rectifier uses six switches to connect the three-phase source of the load directly. Line power factor is controlled while maintaining DC current. The input filter of the rectifier is analyzed, showing that unity power factor is achieved by the lagging of the input current of the rectifier with respect to the source voltage. The PWM technique is developed using a space vector modulation, and its implementation is carried out with a minimal control hardware structure based on a 16 b single-chip microcomputer. It is shown experimentally that the scheme gives good performance
Keywords :
digital control; microcomputer applications; pulse width modulation; rectifiers; voltage control; 16 bit; PWM rectifier; current link; digital control; hardware; input filter; load; microcomputer; power factor; software; space vector modulation; switches; three-phase; voltage control; Circuits; Filters; Hardware; Microcomputers; Microprocessors; Pulse width modulation; Reactive power; Rectifiers; Space vector pulse width modulation; Voltage;
Journal_Title :
Industrial Electronics, IEEE Transactions on
