Abstract: A control device of a gas turbine electric energy production plant (1), which delivers a power (P) at a frequency (fl); the control device (8) comprising power control means (15), for controlling the power (P) delivered by the plant (1) according to a reference power value (PSETNEW), and frequency control means (16), for determining correction values (PFSETPR; PFSETINT) of the reference power value (PSETNEW) according to a frequency error (eF), given by the difference between the plant frequency (f1) and a nominal frequency (fN); the device (8) being characterized in that the frequency control means (16) comprise integral control means (22) configured to calculate the correction values (PFSETINT) if the frequency error (eF) is beyond a first frequency range (B1), and proportional control means (20), which are deactivated when the frequency error (eF) is beyond a first frequency range (B1).

Abstract: A control device of a gas turbine electric energy production plant, which delivers a power at a frequency presents power control means for controlling the power delivered by the plant according to a reference power value, and frequency control means, for determining correction values of the reference power value according to a frequency error, given by the difference between the plant frequency and a nominal frequency, which comprise integral control means configured to calculate the correction values and selectively activatable when the frequency error is beyond a first frequency range.

Abstract: A control device of a gas turbine electric energy production plant, which delivers a power at a frequency presents power control means, for controlling the power delivered by the plant by means of a first control signal which determines the supply of fuel to a portion of the plant according to a reference power value, and frequency control means, for determining correction values of the reference power value according to a frequency error, given by the difference between the plant frequency and a nominal frequency which comprise step control means configured to adjust the supply of fuel to the portion of the plant by means of a second control signal concurrent with the first control signal, when the derivative of the frequency of the plant assumes values higher than a threshold value.