Identification of Crowbar Status for DFIG Short-Circuit Current Calculation

Wenjia Xu; Yalou Li; Changqing Liu; Peipeng Zhou; Zutao Xiang; Bin Han

doi:10.17775/CSEEJPES.2023.00260

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Identification of Crowbar Status for DFIG Short-Circuit Current Calculation

Regular Papers | 更新时间：2026-06-12

- Identification of Crowbar Status for DFIG Short-Circuit Current Calculation
- CSEE Journal of Power and Energy Systems Vol. 12, Issue 3, Pages: 1299-1310(2026)
- 作者机构：
  
  China Electric Power Research Institute,Beijing,China
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2023.00260
  CLC：
- Published：2026
- 稿件说明：
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Wenjia Xu, Yalou Li, Changqing Liu, et al. Identification of Crowbar Status for DFIG Short-Circuit Current Calculation[J]. CSEE Journal of Power and Energy Systems, 2026, 12(3): 1299-1310.
DOI：

Wenjia Xu, Yalou Li, Changqing Liu, et al. Identification of Crowbar Status for DFIG Short-Circuit Current Calculation[J]. CSEE Journal of Power and Energy Systems, 2026, 12(3): 1299-1310. DOI： 10.17775/CSEEJPES.2023.00260.

摘要

Abstract

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.

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