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State space models of doubly fed induction generators (DFIG) are useful for small-signal stability study in power system research. They can also be used for identifying different oscillation modes (mechanical, electromechanical, electromagnetic) between DFIG and power systems. This paper compares different state space models of DFIG for power system study. Firstly, the modeling details of the turbine,...
This paper proposed an explanation on a special phenomenon of voltage change during a large-scale trip-off accident of wind turbine generators (WTGs), which occurred in North China on May 14, 2012. In this accident, the local voltage rose slowly from 209kV to 242kV in 5 seconds after a small-capacity capacitor was switched on. As a result, hundreds of WTGs tripped off due to high voltage. The slow...
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