Calculation method of short-circuit currents in DFIG-based wind farms considering voltage distribution

2018 ◽  
Author(s):  
Wenxia Pan ◽  
Kun Zhao ◽  
Mingyang Liu
Keyword(s):  
Calculation Method ◽  
Short Circuit ◽  
Wind Farms ◽  
Voltage Distribution ◽  
Short Circuit Currents

Computation of Radial Electromagnetic Forces on Power Transformer LV Windings due to Short-Circuit Currents

2013 ◽  
Vol 732-733 ◽  
pp. 1069-1073 ◽  
Author(s):  
Han Bo Zheng ◽  
Jin Hua Han ◽  
Wei Wang ◽  
Xiao Gang Li ◽  
Yu Quan Li
Keyword(s):  
Mechanical Stress ◽  
Case Studies ◽  
Calculation Method ◽  
Electromagnetic Force ◽  
Radial Direction ◽  
Low Voltage ◽  
Power Transformer ◽  
Short Circuit ◽  
Leakage Flux ◽  
Short Circuit Currents

The short-circuit electromagnetic force in radial direction induces critical mechanical stress on a power transformer. In this paper, the radial short-circuit forces which are exerted on transformer low voltage (LV) windings are investigated. Firstly, the mechanisms of leakage flux and short-circuit electromechanical forces in transformer coils are analyzed. Afterwards, based on IEC standards followed by short-circuit tests, calculations of radial short-circuit forces and evaluations of the ability to withstand short currents in LV windings are developed. The case studies and comparisons with improved measures show that the evaluation and calculation method is feasible and effective, and this method also offers three useful ways to strengthen the ability to withstand short-circuit currents for transformer windings.

scholarly journals A Practical Short-Circuit Current Calculation Method for DFIG-Based Wind Farm Considering Voltage Distribution

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 31774-31781 ◽  
Author(s):  
Wenxia Pan ◽  
Mingyang Liu ◽  
Kun Zhao ◽  
Yibo Zhang ◽  
Tongchui Liu
Keyword(s):  
Calculation Method ◽  
Wind Farm ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Voltage Distribution ◽  
Current Calculation

scholarly journals A Short-Circuit Calculation Method for DFIG-Based Wind Farms

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 52793-52800 ◽  
Author(s):  
Mingyang Liu ◽  
Wenxia Pan ◽  
Rui Quan ◽  
Hongyu Li ◽  
Tongchui Liu ◽  
...  
Keyword(s):  
Calculation Method ◽  
Short Circuit ◽  
Wind Farms ◽  
Short Circuit Calculation
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