Design of a Grid-Connected Multiphase Servo System Without DC-Link Capacitor

Yang Xiao, Chunhua Liu*

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

In this article, a direct grid-connected servo system without a dc-link capacitor is proposed for multiphase machines. First, the modeling and field-oriented control are elaborated for the direct grid-connected multiphase servo system. Then, the space current vector modulation and the vector coordination under pulsewidth-modulated (PWM) dc-link voltage are introduced, which is to ensure the safe current commutation. Moreover, the torque and harmonic current control are implemented independently with vector space decomposition. Finally, both simulation and experimental results are given to verify the effectiveness and validity of the proposed servo system.

Original languageEnglish
Article number7500106
Number of pages6
JournalIEEE Transactions on Magnetics
Volume56
Issue number1
Online published20 Dec 2019
DOIs
Publication statusPublished - Jan 2020

Funding

ACKNOWLEDGMENT This work was supported in part by the ITF Tier3 of Innovation and Technology Commission (ITC) of HKSAR, China, under Project ITS/353/16 and in part by the Research Grants Council of HKSAR, China, under Project CityU21201216.

Research Keywords

  • Field-oriented control
  • grid connected
  • multiphase machine
  • permanent-magnet motor
  • servo system

RGC Funding Information

  • RGC-funded

Fingerprint

Dive into the research topics of 'Design of a Grid-Connected Multiphase Servo System Without DC-Link Capacitor'. Together they form a unique fingerprint.

Cite this