Dual feedback adaptive control for voltage regulation of cascade DC-DC converter systems

Chen Wang, Matthew Armstrong, Shady Gadoue

Research output: Chapter in Book/Published conference outputConference publication

Abstract

This paper considers the impact of load variation on the "front-end" converter of cascade Point of Load (PoL) power electronic systems. With the assistance of real-time system identification, the parameters of Point of Load converter are obtained. A new dual feedback adaptive control strategy is then proposed, whereby the duty cycle of the "front-end" converter is carefully regulated to achieve the required output voltage regulation. Compared to conventional PI control methods, the proposed adaptive technique offers significantly improved dynamic behaviour and robust voltage regulation. The proposed controller has particular advantages in parallel lane PoL systems.

Original languageEnglish
Title of host publication8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016)
PublisherIET
ISBN (Print)978-1-78561-188-9
DOIs
Publication statusPublished - 21 Apr 2016
Event8th IET International Conference on Power Electronics, Machines and Drives, PEMD 2016 - Glasgow, United Kingdom
Duration: 19 Apr 201621 Apr 2016

Conference

Conference8th IET International Conference on Power Electronics, Machines and Drives, PEMD 2016
Country/TerritoryUnited Kingdom
CityGlasgow
Period19/04/1621/04/16

Keywords

  • Adaptive control
  • Point of load converter
  • System identification
  • Voltage regulation

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