TY  - JOUR
AU  - Xu, Wenjia
AU  - Li, Yalou
AU  - Liu, Changqing
AU  - Zhou, Peipeng
AU  - Xiang, Zutao
AU  - Han, Bin
PY  - 2026
TI  - Identification of Crowbar Status for DFIG Short-circuit Current Calculation
JO  - CSEE Journal of Power and Energy Systems
SN  - 2096-0042
SP  - 1299
EP  - 1310
VL  - 12
IS  - 3
AB  - This paper presents a crowbar identification criterion for short-circuit current (SCC) calculation of doubly fed induction generator (DFIG) in large power grids. Based on the transient process of SCC flowing through rotor side converter (RSC) during the fault, this paper derives a practical non-time-domain crowbar criterion under symmetrical and asymmetrical faults, which is only related to terminal voltage and could be adapted to the existing iterative calculation method of SCC. Moreover, the proposed criterion is used to perform steady-state SCC calculation including grid side converter (GSC) in power grid to verify its necessity and effectiveness. The manufacturer-based PSCAD simulation and hardware-in-the-loop simulation are conducted to prove the accuracy of the proposed method.
UR  - https://doi.org/10.17775/CSEEJPES.2023.00260
DO  - 10.17775/CSEEJPES.2023.00260