Predictive Duty Cycle Control of Three-Phase Active-Front-End Rectifiers

Zhanfeng Song, Yanjun Tian, Wei Chen, Zhibin Zou, Zhe Chen

Research output: Contribution to journalJournal articleResearchpeer-review

116 Citations (Scopus)

Abstract

This paper proposed an on-line optimizing duty cycle control approach for three-phase active-front-end rectifiers, aiming to obtain the optimal control actions under different operating conditions. Similar to finite control set model predictive control strategy, a cost function previously constructed based on the desired control performance is adopted here, which is essential for the solving process of the optimizing problem. On the other hand, differently, with respect to the proposed strategy, duty cycle signals are optimized, instead of possible switching states. The determination of optimal duty cycles is made by predicting the effect of duty cycles on instantaneous current variations and minimizing the cost function. Due to the adoption of behavior prediction, the proposed controller inherits the excellent dynamic characteristics of predictive controllers. Moreover, the application of optimal duty cycles determined by cost function minimization automatically ensures optimum operations of converters within each sampling period. Improved transient and steady-state features of the proposed strategy are confirmed by experimental validations and in-depth comparisons with linear controllers, deadbeat predictive controllers, and finite control set model predictive control strategies.
Original languageEnglish
JournalI E E E Transactions on Power Electronics
Volume31
Issue number1
Pages (from-to)698 - 710
Number of pages13
ISSN0885-8993
DOIs
Publication statusPublished - Jan 2016

Keywords

  • Predictive control
  • Cost function minimization
  • Three-phase active-front-end rectifier

Fingerprint

Dive into the research topics of 'Predictive Duty Cycle Control of Three-Phase Active-Front-End Rectifiers'. Together they form a unique fingerprint.

Cite this