摘要

Aiming at multi-characteristic double-stage power converter, the impact of digital control to the system was introduced, the principle of digital predictive control was analyzed, and a new digital predictive control algorithm combined with predictive control and PID control was proposed and applied to double-stage power converter prototype centering on TMS320LF2407A. The experiment results show that the new algorithm has better control ability and dynamic response to the digital system with control-delay. The prototype operates well and stably outputs DC/AC waveforms of frequency and amplitude conversion.

全文