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Rotor flux magnitude and angle control strategy for doubly fed induction generators

Anaya-Lara, O. and Hughes, F. and Jenkins, N. and Strbac, G. (2006) Rotor flux magnitude and angle control strategy for doubly fed induction generators. Wind Energy, 9 (5). pp. 479-495. ISSN 1095-4244

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Abstract

A new control strategy is investigated for Doubly Fed Induction Generators (DFIGs). It exercises control over the generator terminal voltage and output power by adjusting the magnitude and angle of the rotor flux vector. It is shown that this control strategy leads to low interaction between the power and voltage control loop, better system damping and voltage recovery following faults, and it also provides enhanced frequency regulation capability compared with that achieved with existing DFIG controllers described in the open literature. The dynamic performance of the proposed DFIG control is tested for small and large disturbances using a generic network that combines wind and conventional synchronous generation. Simulation results are presented and discussed that demonstrate the capabilities of the new strategy to enhance DFIG performance and its contribution to network operation.