LVRT capability enhancement in the grid-connected DFIG-driven WECS using adaptive hysteresis current controller

P. Jayanthi () and D. Devaraj ()
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P. Jayanthi: Kalasalingam Academy of Research and Education
D. Devaraj: Kalasalingam Academy of Research and Education

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2022, vol. 24, issue 6, No 6, 7593-7621

Abstract: Abstract With high access of wind energy conversion system (WECS) into the grid, it is essential that the wind energy producing companies have to conform the grid code standards laid down by the country. The low voltage-ride through (LVRT) capability is one among the obligations of all grid code standards. The LVRT capability can be enhanced by controlling the power electronic converters without any additional cost. This work proposes a novel adaptive hysteresis controller (AHC) for the LVRT capability enhancement of grid connected double-feed induction generator (DFIG)-driven WEC system. The active and reactive power flow at the DFIG is managed by modified PQ controller, and the results are compared with PQ controller. The DC link voltage (Vdc) under normal and fault conditions is controlled by fuzzy logic control (FLC). The proposed AHC controller is tested with 9 MW grid connected WEC system on Matlab/Simulink platform, and a detailed simulation was carried out under normal and fault conditions. The test results disclose the efficiency of the proposed approach.

Keywords: Grid connected WECS; Low voltage ride through; Double-feed induction generator; Adaptive hysteresis controller; Voltage sag (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s10668-021-01684-7

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