Robust control of DC-DC boost converters for solar systems

Yeqin Wang, Beibei Ren, Qing Chang Zhong

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

It is very challenging to control a DC-DC boost converter, due to its non-minimum phase phenomenon, model uncertainties (e.g., the parasitics), and external disturbances (e.g., input voltage change or load change). In this paper, a uncertainty and disturbance estimator (UDE)-based current-mode control (CMC) is proposed to address these problems. A new voltage dynamics is developed to avoid the non-minimum phase phenomenon. Then the UDE algorithm is adopted for both voltage-loop control design and current-loop control design to deal with model uncertainties, external disturbances, and the inductor current estimation error. Furthermore, a new control framework based on this UDE-based CMC is proposed for the grid integration of solar systems with voltage protection. Experimental results are provided to demonstrate the effectiveness and robustness of the proposed strategies.

Original languageEnglish
Title of host publication2017 American Control Conference, ACC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages5071-5076
Number of pages6
ISBN (Electronic)9781509059928
DOIs
StatePublished - Jun 29 2017
Event2017 American Control Conference, ACC 2017 - Seattle, United States
Duration: May 24 2017May 26 2017

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619

Conference

Conference2017 American Control Conference, ACC 2017
CountryUnited States
CitySeattle
Period05/24/1705/26/17

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