Research Article
The Virtual Resistance Control Strategy for HVRT of Doubly Fed Induction Wind Generators Based on Particle Swarm Optimization
Figure 9
Rotor current, voltage with variable damping control in subsynchronization.
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(a) Rotor current and voltage with 0.5 pu virtual resistance |
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(b) Rotor current and voltage with 1.5 pu virtual resistance |
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