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DFIG Driven Wind Turbine With Grid Supporting Battery Storage System | IEEE Journals & Magazine | IEEE Xplore

DFIG Driven Wind Turbine With Grid Supporting Battery Storage System


Abstract:

Grid operators face challenges with the increasing integration of wind energy into electric grids, necessitating uninterrupted wind power generation during outages to mai...Show More

Abstract:

Grid operators face challenges with the increasing integration of wind energy into electric grids, necessitating uninterrupted wind power generation during outages to maintain system stability. Due to voltage dips there is a significantly impact on grid-connected doubly fed induction generators (DFIGs). Hence, integrating DFIG with grid battery storage system (GBSS) is to provide essential active and reactive power support at the point common coupling (PCC), aligning requirement of low voltage ride through (LVRT), and other services to the electric grid. The article proposes and experimentally validates a coordinated control scheme between the grid side converter (GSC) of the DFIG and the GBSS. In this dynamic adjustment of power set points within the outer control loop responds to voltage and frequency changes at the PCC. The control scheme facilitates multiple services to grid by seamless plug-and-play functionality between DFIG and GBSS converters. The proposed method, utilizing GBSS, achieves significant voltage improvement and enhanced reactive power injection, while effectively managing stator voltage, rotor-side converter current, and dc link voltage oscillations. The study incorporates hardware-in-the-loop (HIL) testing using real-time digital simulator (RTDS) with hardware setup of 2.5 kW dc motor emulating a wind turbine interconnected via power amplifier (PA). Simulation and experimental results demonstrate the effectiveness of proposed coordinated control scheme indicating its potential significance in grid conditions by withstanding voltage dips and load variations.
Published in: IEEE Transactions on Industrial Electronics ( Volume: 72, Issue: 2, February 2025)
Page(s): 1537 - 1548
Date of Publication: 18 July 2024

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