LVRT capability improvement of a grid-connected PV park by robust sliding mode control

Gazi M.S. Islam, Ahmed Al Durra

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

7 Scopus citations

Abstract

This paper presents a robust sliding mode based control method of a grid connected large scale photovoltaic (PV) system to enhance low voltage ride through performance. Recent grid codes dictate that PV plants need to stay connected with the power grid during the network faults because of their increased power penetration level. This requires the system to have large disturbance rejection capability to withstand against network disturbance and provide dynamic grid support. For the sake of faster current control in the inner loop of the inverter, a sliding mode control scheme is proposed in order to improve the fault ride through capability of a PV plant. A novel control coordination is also presented to reduce the power mismatch during the fault condition in order to limit the fault currents, which is one of the salient features of this study. The performance of the overall system using proposed controller is analyzed using laboratory standard power system simulation software PSCAD/EMTDC and results are compared with conventional controller.

Original languageBritish English
Title of host publicationACC 2015 - 2015 American Control Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1002-1009
Number of pages8
ISBN (Electronic)9781479986842
DOIs
StatePublished - 28 Jul 2015
Event2015 American Control Conference, ACC 2015 - Chicago, United States
Duration: 1 Jul 20153 Jul 2015

Publication series

NameProceedings of the American Control Conference
Volume2015-July
ISSN (Print)0743-1619

Conference

Conference2015 American Control Conference, ACC 2015
Country/TerritoryUnited States
CityChicago
Period1/07/153/07/15

Keywords

  • Current control scheme
  • DC-AC power converter
  • DC-link protection
  • distributed power generation
  • sliding mode controller
  • solar energy

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