Efficient fault-ride-through control strategy of DFIG-based wind turbines during the grid faults

As the penetration of wind power in electrical power system increases, it is necessary that wind turbines remain connected to the grid and contribute to the system stability during and after the grid faults. This paper proposes an efficient control strategy to improve the fault ride through (FRT) ca...

Full description

Saved in:
Bibliographic Details
Published in:Energy conversion and management 2014-02, Vol.78, p.88-95
Main Authors: MOHAMMADI, J, AFSHARNIA, S, VAEZ-ZADEH, S
Format: Article
Language:English
Subjects:
Active control
Applied sciences
Compensators
Electric potential
Energy
Exact sciences and technology
Faults
Natural energy
Rotors
Strategy
Voltage
Wind energy
Wind turbines
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:As the penetration of wind power in electrical power system increases, it is necessary that wind turbines remain connected to the grid and contribute to the system stability during and after the grid faults. This paper proposes an efficient control strategy to improve the fault ride through (FRT) capability of doubly fed induction generator (DFIG) during the symmetrical and asymmetrical grid faults. The proposed scheme consists of active and passive FRT compensators. The active compensator is carried out by determining the rotor current references to reduce the rotor over voltages. The passive compensator is based on rotor current limiter (RCL) that considerably reduces the rotor inrush currents at the instants of occurring and clearing the grid faults with deep sags. By applying the proposed strategy, negative effects of the grid faults in the DFIG system including the rotor over currents, electromagnetic torque oscillations and DC-link over voltage are decreased. The system simulation results confirm the effectiveness of the proposed control strategy.
ISSN:0196-8904
1879-2227
DOI:10.1016/j.enconman.2013.10.029