Abstract
The basic principle of LVRT control strategy based on flux linkage tracking for Brushless Doubly Fed Induction Generator (BDFIG) is to make the flux linkage vector of control winding (CW) to track power winding (PW) flux linkage vector as soon as possible during grid faults, so as to ensure the safe operation of the converter. This control strategy is used in this paper for BDFIG to track the asymmetrical voltage faults. The behaviors of PW flux linkage, PW active power, reactive power and electromagnetic torque are analyzed. A proportional integral-resonant (PI-R) controller is applied for flux linkage vector amplitude tracking under asymmetrical voltage faults. Simulation results show that the ac components in amplitude of CW flux linkage vector are compensated with the proposed controller, as a result, the maximum CW current, at worst, is less than the 1.7 times rated current with the dc-link voltage allowed and the electromagnetic torque is near zero during grid faults which will reduce the press on the drive train significantly.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
