Mathematical Problems in Engineering / 2014 / Article / Fig 7

Research Article

The Virtual Resistance Control Strategy for HVRT of Doubly Fed Induction Wind Generators Based on Particle Swarm Optimization

Figure 7

The root locus of the disturbance transfer function with and without virtual resistance.
350367.fig.007a
(a) Without virtual resistance
350367.fig.007b
(b) With virtual resistance