Research Article

A Fuzzy Logic Controller to Increase Fault Ride-Through Capability of Variable Speed Wind Turbines

Figure 3

Membership functions of fuzzy controller. (a) Input signal error, (b) input signal integral error, (c) input signal reactive power measured at the PCC, (d) output reference reactive power, and (e) output active power modulator.
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(a)
405314.fig.003b
(b)
405314.fig.003c
(c)
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(d)
405314.fig.003e
(e)