scholarly journals Recent development and future trends of resonance in doubly fed induction generator system under weak grid

2022 ◽  
Author(s):  
Zakiud Din ◽  
Jianzhong Zhang ◽  
Zheng Xu ◽  
Yaqian Zhang ◽  
Ahmad H. Milyani ◽  
...  
Keyword(s):  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Future Trends ◽  
Generator System ◽  
Weak Grid ◽  
Doubly Fed

scholarly journals Grid Forming Stator Flux Control of Doubly-Fed Induction Generator

Energies ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6766
Author(s):  
Norbert Klaes ◽  
Florian Pöschke ◽  
Horst Schulte
Keyword(s):  
Reactive Power ◽  
Induction Machine ◽  
Induction Generator ◽  
System Response ◽  
Doubly Fed Induction Generator ◽  
Generator System ◽  
Flux Control ◽  
Doubly Fed Induction Machine ◽  
Stator Flux ◽  
Doubly Fed

The doubly fed induction generator is widely used in wind power applications. For stand-alone operation of this machine, the control of the stator flux with fixed voltage and frequency has been proposed. This paper extends the stator flux control of the doubly fed induction machine by droop mechanisms, which vary the setpoint of flux magnitude and frequency depending on active and reactive power. This gives the doubly fed induction generator system unknown grid supporting and grid forming performance. The validation of the proposed control scheme has been conducted on a 10kVA testbed system. The closed-loop behavior of the system has been proven to enable grid-tied and islanded operation with the same control structure. The system response to load changes and islanding events show no disruptive transients in both conditions.

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