Research on transient modeling method and applicability of distributed wind farm
Research on transient modeling method and applicability of distributed wind farm
- Author(s): S. Di 1 ; J. Yake 1 ; W. Gengbo 1 ; W. Lei 1
- DOI: 10.1049/icp.2020.0061
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- Author(s): S. Di 1 ; J. Yake 1 ; W. Gengbo 1 ; W. Lei 1
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View affiliations
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Affiliations:
1:
China Qiyuan Engineering Corporation, Xi’an, Shaanxi Province , China
Source:
The 16th IET International Conference on AC and DC Power Transmission (ACDC 2020),
2021
p.
510 – 517
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Affiliations:
1:
China Qiyuan Engineering Corporation, Xi’an, Shaanxi Province , China
- Conference: The 16th IET International Conference on AC and DC Power Transmission (ACDC 2020)
- DOI: 10.1049/icp.2020.0061
- ISBN: 978-1-83953-330-3
- Location: Online Conference
- Conference date: 02-03 July 2020
- Format: PDF
Doubly-fed induction wind turbines are dispersed and integrated into distribution network with high permeability, showing different electromagnetic transient characteristics from traditional power sources, which makes conventional protection of distribution lines difficult to adapt. Based on the transient equivalent model of single doubly-fed induction wind power generation unit, this paper studies the transient clustering equivalence method for DFIG multi-access distributed wind farms based on the dynamic characteristics of rotor fault current. The characteristics of rotor fault current of DFIG units after faults are analyzed to provide basis for the selection and judgment of low voltage traversing control mode. A known terminal voltage and wind speed of DFIG units after faults are studied. The short circuit current of DFIG rotor is calculated to judge the control mode after faults. The units with the same low voltage traversing mode are clustered by clustering algorithm. The output current of clustered wind farm is compared with detailed transient modeling and wind speed equivalent wind farm modeling. At the same time, the effectiveness of transient modeling of decentralized wind farm is validated by combining the field recorded data of a decentralized wind farm.
Inspec keywords: wind turbines; rotors; asynchronous generators; power grids; wind power plants; power generation control
Subjects: Asynchronous machines; Wind power plants; Control of electric power systems