A Control Method for Converter-interfaced Sources to Improve Operation of Directional Protection Elements

A Control Method for Converter-interfaced Sources to Improve Operation of Directional Protection Elements

Yang, Zhe (Aalborg University)
Liu, Zhou (Aalborg University)
Zhang, Qi (Siemens Gamesa Renewable Energy AS)
Chen, Zhe (Aalborg University)
de Jesus Chavez, Jose (TU Delft Intelligent Electrical Power Grids)
Popov, M. (TU Delft Intelligent Electrical Power Grids)

2023

The traditional fault control strategy of converter-interfaced renewable energy sources (CIRESs) may bring about a lower sensitivity level or misoperation of fault component-based directional elements. To overcome this problem, a new control scheme is proposed to adjust sequence impedance angles of CIRESs by computing suitable current references of the CIRES controller. Meanwhile, these current references are maximized by an iterative algorithm to make full use of the short-circuit capacity of CIRESs. The proposed control scheme is applicable to various faulty conditions such as different fault types, power factors, weak grids, and larger fault resistances. Compared with the new directional elements that need to update protection algorithms, the proposed control strategies can make CIRESs compatible with the existing directional elements whilst the necessary fault ride-through (FRT) requirements can still be satisfied. Furthermore, all the controller parameters are not required to be revised based on the detected fault type, even with only local measured data collected. The associated PSCAD simulations, real-time digital simulator (RTDS) testing and the downscale hardware experiment verify the proposed method.

Circuit faults
converter-interfaced renewable energy sources
directional elements
Fault currents
fault ride through
Impedance
impedance angle
Power transmission lines
Security
Voltage control
Voltage measurement

http://resolver.tudelft.nl/uuid:aeb9caee-cd3f-493d-8e2f-fc9ffaba79ea

https://doi.org/10.1109/TPWRD.2022.3202988

2023-02-06

0885-8977

IEEE Transactions on Power Delivery, 38 (1), 642-654

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Institutional Repository

journal article

© 2023 Zhe Yang, Zhou Liu, Qi Zhang, Zhe Chen, Jose de Jesus Chavez, M. Popov