Title :
Real-time multi-DSP control of three-phase current-source unity power factor PWM rectifier
Author :
Wang, Xiao ; Ooi, Boon-Teck
Author_Institution :
Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada
fDate :
7/1/1993 12:00:00 AM
Abstract :
The design of a real-time multi-DSP controller for a high-quality six-valve, three-phase current-source unity power factor pulse-width-modulated (PWM) rectifier is discussed. With the decoupler preprocessor and the dynamic trilogic PWM trigger scheme, each of the three input currents can be controlled independently. The pole-placement control method implemented, which is based on the a-b- c frame system model and fast parallel computer control, achieves fast AC current response. The low-frequency resonance in the AC filter L-C networks is damped effectively. The experimental results were obtained for a 1 kVA bipolar transistor current-source PWM rectifier with a real-time controller using three TMS320C25 DSPs
Keywords :
bipolar transistors; digital signal processing chips; poles and zeros; pulse width modulation; rectifying circuits; 1 kVA; AC filter L-C networks; TMS320C25; a-b-c frame system model; bipolar transistor; current-source unity power factor PWM rectifier; decoupler preprocessor; dynamic trilogic PWM trigger scheme; fast AC current response; fast parallel computer control; low-frequency resonance; pole-placement control; pulse-width-modulated; real-time multi-DSP controller; six-valve; three-phase; Bipolar transistors; Concurrent computing; Data preprocessing; Digital signal processing; Filters; Pulse width modulation; Reactive power; Rectifiers; Resonance; Space vector pulse width modulation;
Journal_Title :
Power Electronics, IEEE Transactions on
