Converters' Loading Balance and Stability Verification for Doubly-Fed Induction Generators
Regular Papers|更新时间:2025-11-14
|
Converters' Loading Balance and Stability Verification for Doubly-Fed Induction Generators
Converters' Loading Balance and Stability Verification for Doubly-Fed Induction Generators
中国电机工程学会电力与能源系统学报(英文)2025年11卷第3期 页码:1131-1140
作者机构:
Anhui Province Key Laboratory of Renewable Energy Utilization and Energy Saving, School of Electrical Engineering and Automation, Hefei University of Technology,Hefei,China
Shenghu Li. Converters' Loading Balance and Stability Verification for Doubly-Fed Induction Generators[J]. 中国电机工程学会电力与能源系统学报(英文), 2025,11(3):1131-1140.
Shenghu Li. Converters' Loading Balance and Stability Verification for Doubly-Fed Induction Generators[J]. Csee journal of power and energy systems, 2025, 11(3): 1131-1140.
Shenghu Li. Converters' Loading Balance and Stability Verification for Doubly-Fed Induction Generators[J]. 中国电机工程学会电力与能源系统学报(英文), 2025,11(3):1131-1140. DOI: 10.17775/CSEEJPES.2021.01260.
Shenghu Li. Converters' Loading Balance and Stability Verification for Doubly-Fed Induction Generators[J]. Csee journal of power and energy systems, 2025, 11(3): 1131-1140. DOI: 10.17775/CSEEJPES.2021.01260.
Converters' Loading Balance and Stability Verification for Doubly-Fed Induction Generators
Back-to-back converters are the main components of a doubly-fed induction generator (DFIG). If the loadings of the rotor-side converter (RSC) and the grid-side converter (GSC) are balanced
the capacity and the cost of the DFIG will be reduced. This paper balances the converters' loadings by adjusting reactive power of the GSC <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$(Q_{\mathrm{g}*})$. The steady-state constraints of the DFIG are solved to quantify the imbalance degree. A sensitivity model of the unbalanced loading with respect to <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$Q_{\mathrm{g}*}$ is proposed to balance the loadings. To verify if loading adjustment reduces the stability of the DFIG
the eigen-sensitivity models
with respect to <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$Q_{\mathrm{g}*}$ and stator voltage
are newly proposed with the power flow Jacobian matrix. Numerical results verify the accuracy and efficiency of the proposed model. The loadings of the converters are balanced with a few adjustments. Loading balance has little negative impact on the stability of the DFIG.
关键词
Keywords
references
4. NERC. ( 2012, December 21 ). Special assessment: interconnection requirements for variable generation. [Online]. Available: https://www.esig.energy/download/2012-special-assessment-interconnection-requirements-variable-generation/.