Research Article
A Continuous Nonlinear Fractional-Order PI Controller for Primary Frequency Control Application
Figure 7
Simulated responses of the integral side of the nonlinear controller versus time when the variable step passed through the transfer function of the one generator unit. (a) “r” varies between 0 and 1.2. (b) “r” varies between 0.8 and 2.
(a) |
(b) |