Patent ID: 7000376

Claim:
A control system for a gas turbine ( 2 ), wherein a number of regulators ( 24 ) generate respective control signals (P 1 –P 6 ) selectable ( 25 ) to regulate ( 27 ) fuel supply to a combustion chamber ( 5 ) of said gas turbine; said regulators comprising at least one speed/load regulator receiving at least one first feedback signal (NT 1 –NT 6 , NT) related to the speed of said gas turbine ( 2 ), and at least one second feedback signal (PEL 1 , PEL 2 , PEL) related to the power supplied by said gas turbine; characterized in that said speed/load regulator comprises a first regulating block ( 60 ), in particular a proportional-integral regulator, receiving a first error signal (ΔN) related to the difference between said first feedback signal (NT 1 –NT 6 , NT) and a reference speed value (Vref); said speed/load regulator also comprising a second regulating block ( 64 ), in particular a proportional-integral regulator, separate from the first regulating block ( 60 ) and receiving a second error signal (ΔP) related to the difference between said second feedback signal (PEL 1 , PEL 2 , PEL) and a reference load value; said speed/load regulator also comprising selecting means ( 62 ) for selecting the output of said first regulating block ( 60 ) during a control step of the speed of said gas turbine, and for selecting said second regulating block ( 64 ) during a control step of the load of said gas turbine.