Research on an Improved Control Strategy for Enhancing LVRT Ability of DFIG System

Yan Feng Meng; Shu Ju Hu; Hong Hua Xu

doi:10.4028/www.scientific.net/AMM.291-294.467

Paper Titles

Field Experiment of Blade Surface Pressure of a HAWT
p.445

Large-Eddy Simulation of Flow around a Horizontal-Axis Wind Turbine
p.450

Numerical Simulations of Spherical Vertical-Axis Wind Rotor
p.456

Reliability Modeling of Wind Farm Considering the Outages of Connection Cables
p.461

Research on an Improved Control Strategy for Enhancing LVRT Ability of DFIG System
p.467

Rotational Turbulent Wind Field Simulation of Wind Turbine
p.472

The Realization of Individual Pitch Control
p.477

Using Dynamic Reactive Power Compensation Equipments to Enhance Low Voltage Ride-Through Capability of Fixed Speed Asynchronous Wind Farms
p.481

Numerical Simulation of Unsteady Flow for Variable-Pitch Vertical Axis Wind Turbine
p.490

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 291-294Research on an Improved Control Strategy for...

Research on an Improved Control Strategy for Enhancing LVRT Ability of DFIG System

Abstract:

Aiming at operation problems of DFIG under grid fault condition, the improved control strategy of coordinating control rotor converter and Crowbar circuit switching logic for enhancing LVRT ability is proposed. The over-current cause on the stator and rotor of DFIG under grid fault is analyzed and complete improved control strategy flow chart is given during entire voltage dip. Experimental verification results show that adopting this improved control strategy can effectively suppress the generator stator and rotor over-current and over-voltage, enhance wind turbine operation ability, and provide important theoretical basis and reference for large-scale wind turbine to respond to grid transient fault.

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Periodical:

Applied Mechanics and Materials (Volumes 291-294)

Pages:

467-471

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.291-294.467

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Online since:

February 2013

Authors:

Yan Feng Meng, Shu Ju Hu, Hong Hua Xu

Keywords:

Crowbar Circuit Switching Logic, Double Fed Induction Generation (DFIG), Enhance LVRT Ability, Wind Power

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