Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Fault Ride through Capability Analysis of Wind Turbine with Doubly Fed Induction Generator

Version 1 : Received: 20 July 2021 / Approved: 21 July 2021 / Online: 21 July 2021 (09:51:48 CEST)

How to cite: Endale, S.M.; Tuka, M.B. Fault Ride through Capability Analysis of Wind Turbine with Doubly Fed Induction Generator. Preprints 2021, 2021070476. https://doi.org/10.20944/preprints202107.0476.v1 Endale, S.M.; Tuka, M.B. Fault Ride through Capability Analysis of Wind Turbine with Doubly Fed Induction Generator. Preprints 2021, 2021070476. https://doi.org/10.20944/preprints202107.0476.v1

Abstract

Doubly Fed Induction Generator (DFIG) has a stator winding directly coupled with grid. Whereas, rotor winding is connected via a fault-prone back to back power converters. DFIG is known to be vulnerable to the grid faults. In early times, when a fault occurred, these generators were required to disconnect from the grid to secure the generator and power converters. However, due to the increased penetration of wind turbines into the power system, grid operators demanded that the wind turbines remain connected to the grid, as disconnecting them would further disrupt the grid. When a fault at the grid terminal occur, a high stator current is induced which further result in high rotor current. This current will trigger the DC-link voltage to rise. This high currents and DC-link voltage will cause harm to the converters. Thus, in this paper work, the crowbar protection system is employed for protecting the converters against excess energy. Furthermore, the analysis of DFIG is rendered by integrating the crowbar protection with the Battery Energy Storage System (BESS) for a much effective outcome in enhancing machine to drive the fault. MATLAB-Simulink software is used for modeling and simulation. All system parameters are obtained from ADAMA-II Wind Farm.

Keywords

Battery Energy Storage System; Crowbar; Fault Ride Through Capability; Vector control; Wind turbine

Subject

Engineering, Automotive Engineering

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