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Fraction Phase Lead Repetitive Control and its Application in Inverter

[+] Author Affiliations
Jianhong Wang, Yongqiang Ye

Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu, China

YangQuan Chen

University of California, Merced, CA

Paper No. DETC2015-46186, pp. V009T07A017; 6 pages
doi:10.1115/DETC2015-46186
From:
  • ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 9: 2015 ASME/IEEE International Conference on Mechatronic and Embedded Systems and Applications
  • Boston, Massachusetts, USA, August 2–5, 2015
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5719-9
  • Copyright © 2015 by ASME

abstract

In order to reduce turn-off losses, the switching frequency of power devices, which is sampling rate, is usually chosen to be low in high power inverter application. Limited by the digital sampling, phase lead step should be integer, in which case the repetitive control tends to be unstable under low sampling application. Thus fractional phase lead repetitive control is proposed. This method enables the phase lead step can be fractional, thus enlarges the stability region and improves the tracking accuracy as well. The detailed parameters design is given. At last, simulations of inverter using fractional phase lead repetitive control are presented. The results verify that fractional phase lead repetitive control favors better stability and harmonic suppression.

Copyright © 2015 by ASME

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