High-performance direct-frequency converters controlled by predictive-current loop

Eduardo P. Wiechmann, Ariel R. Garcia, Lautaro D. Salazar, Jose R. Rodriguez

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


Two predictive space-vector control strategies for direct-frequency converter (DFC) structures are presented. Both algorithms require output-current feedback in order to decide the next best state of the converter. The performance of the control techniques is compared with a high-performance fictitious-link DFC. Computer simulation using Microsim PSpice 5.3 is used to examine the operation of the DFC converter algorithms. The evaluation is done for a wide-operational output frequency and includes input/output-voltage ratio, commutation frequency, input-current balance, input-current total harmonic distortion (THD), and input power factor. From these results, the high performance exhibited by the proposed algorithms is verified.

Original languageEnglish
Pages (from-to)547-557
Number of pages11
JournalIEEE Transactions on Power Electronics
Issue number3
Publication statusPublished - 1997

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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