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International Journal of Electrical and Computer Engineering Systems, Vol. 8. No. 2., 2017.

Preliminary communication

https://doi.org/10.32985/ijeces.8.2.5

Symmetrical Short-Circuit Parameters Comparison of DFIG–WT

Muhammad Shahzad Nazir orcid id orcid.org/0000-0001-9877-9590 ; South China University of Technology, School of Electrical Power Engineering, Guangzhou
Qinghua Wu ; South China University of Technology, School of Electrical Power Engineering, Guangzhou
Mengshi Li ; South China University of Technology, School of Electrical Power Engineering, Guangzhou

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Abstract

Renewable energy with new resources is depleting the fossil fuel-based energy resources. Renewable energy sources (such as wind energy) based power generators are important energy conversion machines and have widely industrial and commercial applications due to their superior performance, and the fact that they endure faults well and are environmentally friendly. The study of the transient behavior of such generators under fault condition has drawn much attention. This study presents Doubly-Fed Induction Generator (DFIG) perturbation during a symmetrical (three-phase) short circuit (SSC) at different points. Simulation results reveal that after a fault occurs, there is decay of SC parameters (transient time, maximum current, steady-state and voltage dip) at the point of common coupling (PCC) and the grid-side converter (GSC) of DFIG. Simulation results depict a more sensitive and robust point during a SSC of DFIG. Current findings present the main difference between the PCC and the GSC during SSC faults. These comparisons provide a more precise understanding of fault diagnosis reliability with reduced complexity, stability, and optimization of the system. This study verified by the simulation results helps us understand and improve the performance of sensor sensibility (measurements), develop control schemes, protection strategy and
select a more accurate and proficient system among other wind energy conversion systems (WECS).

Keywords

doubly-fed induction generator; renewable energy; short circuit; wind power generation

Hrčak ID:

192914

URI

https://hrcak.srce.hr/192914

Publication date:

21.12.2017.

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