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Real-time multi-DSP control of three-phase current-source unity power factor PWM rectifier

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2 Author(s)
X. Wang ; Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada ; B. -T. Ooi

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

Published in:

IEEE Transactions on Power Electronics  (Volume:8 ,  Issue: 3 )