Model Predictive Control of an AFE Rectifier With Dynamic References

TLDR

The paper presents a finite‑control‑set model predictive controller for closed‑loop control of an active front‑end rectifier. The controller operates in discrete time, requires no modulators or extra loops, and generates suitable references for source active power and rectified voltage. The algorithm’s novel handling of dynamic references enables fast, accurate tracking of DC voltage and reactive power while respecting the rectifier’s maximum power limits.

Abstract

In this paper, a finite control set model predictive controller for closed-loop control of an active front-end rectifier is presented. The proposed method operates in discrete time and does not require additional modulators. The key novelty of the control algorithm presented lies in the way dynamic references are handled. The control strategy is capable of providing suitable references for the source active power and the rectified voltage, without requiring additional control loops. Experimental results show that fast and accurate tracking of dynamic dc voltage and reactive power references can be achieved, while respecting the restrictions on maximum power levels of the rectifier.