Enhancement of Fault Ride Through Capabilities for Grid-Connected DFIG-Based Wind Farms using Nonlinear Adaptive Backstepping Controllers

T. K. Roy, M. A. Mahmud, S. N. Islam, Amanullah M.T. Oo, K. M. Muttaqi

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

2 Citations (Scopus)

Abstract

In this paper, nonlinear adaptive backstepping controllers are designed for grid-connected wind energy conversion systems (WECSs) with doubly-fed induction generators (DFIGs) in order to enhance the fault ride through (FRT) capability. The main control objectives are to ensure the desired power injection (both active and reactive) into the grid while enhancing the FRT capability. The proposed adaptive controllers are designed for grid-side and rotor-side converters by considering dynamics of these converters along with the dynamic of the DC-link voltage. These controllers are designed to provide robustness against parametric uncertainties and for this purpose, all relevant parameters are considered as unknown. The unknown parameters are estimated through the adaptation laws and these adaptation laws along with the control actions for converters are obtained in such a way that the convergence of different physical properties of wind farms is ensured. The effectiveness of the proposed control scheme is validated on a single DFIG-based 9 MW WECS by applying severe three-phase short-circuit faults on the connection point of the wind farm. The performance of the proposed controller is also compared with an existing adaptive sliding mode control (EASMC) scheme in terms of active power injection, reactive power support, and voltage sag at the point of common coupling (PCC) along with fluctuations in the DC-bus voltage.

Original languageEnglish
Title of host publicationProceedings of 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538693155
DOIs
Publication statusPublished - 21 Dec 2018
Externally publishedYes
Event8th IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018 - Chennai, India
Duration: 18 Dec 201821 Dec 2018

Publication series

NameProceedings of 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018

Conference

Conference8th IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018
Country/TerritoryIndia
CityChennai
Period18/12/1821/12/18

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