Fig. 14From: A new two-degree of freedom combined PID controller for automatic generation control of a wind integrated interconnected power systemInfluence of system parameter variations on output responses in presence of combined controller. a Frequency deviations of area I with variation of Kp; b frequency deviations of area II with variation of Kp; c frequency deviations of area I with variation of Tp; d frequency deviations of area II with variation of TpBack to article page