Systems and methods for improved transient response of turbine generators

1 . A system, comprising:

a control system, comprising:

a memory configured to store a mechanical power system stabilizer (MPSS) system configured to dynamically stabilize an operation of a generator system by adjusting a gas turbine system, wherein the generator system is mechanically coupled to the gas turbine system; and

a processor communicatively coupled to the memory and configured to execute the MPSS to:

detect a first swing transient event of a transient event caused by a power grid that is electrically coupled to the generator system, wherein the first swing transient event comprises a first change leading to a first peak in a power angle of the generator system;

mechanically deload the gas turbine system in response to detection of the first swing transient event;

wait until a clearing time has elapsed; and

mechanically load the gas turbine system.

2 . The system of claim 1 , wherein the processor is configured to execute the MPSS to attenuate an oscillation of the power angle of the generator system by the mechanically deload of the gas turbine system to overcome the transient condition in a time period of less than 10 seconds.

3 . The system of claim 2 , wherein the processor is configured to execute the MPSS to attenuate the oscillation to overcome the transient condition in the time period of less than 5 seconds.

4 . The system of claim 1 , wherein the processor is configured to execute the MPSS to detect the transient event by using an excitation system electrically coupled to the generator system, and the excitation system comprises an automatic voltage regulator (AVR) for automatically maintaining output terminal voltage of the generator system at a set value under varying load and operating temperatures.

5 . The system of claim 1 , wherein the processor is configured to execute the MPSS to initiate the mechanically deload during the first swing transient event.

6 . The system of claim 1 , wherein the processor is configured to deload the gas turbine system by modulating a blow out valve.

7 . The system of claim 6 , wherein the processor is configured to deload the gas turbine system by using a trip logic to quickly reduce power production of the gas turbine system.

8 . The system of claim 1 , wherein the processor is configured to deload the gas turbine system while preventing a flame out of the gas turbine system.

9 . The system of claim 1 , wherein the processor is configured to execute the MPSS to detect the first swing transient event with a detection latency of less than or equal to 50 milliseconds.

10 . The system of claim 1 , wherein the gas turbine system comprises an aeroderivative gas turbine.

11 . A non-transitory computer-readable medium having computer executable code stored thereon, the code comprising instructions to:

execute a mechanical power system stabilizer (MPSS) system configured to dynamically stabilize an operation of a generator system by adjusting a gas turbine system, wherein the generator system is mechanically coupled to the gas turbine system, and wherein the MPSS system when executed is configured to:

detect a first swing transient event of a transient event caused by a power grid that is electrically coupled to the generator system, wherein the first swing transient event comprises a first change leading to a first peak in a power angle of the generator system;

mechanically deload the gas turbine system in response to detection of the first swing transient event;

wait until a clearing time has elapsed; and

mechanically load the gas turbine system.

12 . The non-transitory computer-readable medium of claim 11 , wherein the MPSS system is configured to attenuate an oscillation of the power angle of the generator system by the mechanically deload of the gas turbine system to overcome the transient condition in a time period of less than 10 seconds.

13 . The non-transitory computer-readable medium of claim 11 , wherein the MPSS system is configured to detect the transient event by using an excitation system electrically coupled to the generator system, and the excitation system is separate from an exciter coupled to the generator system.

14 . The non-transitory computer-readable medium of claim 11 , wherein the MPSS system is configured to detect the first swing transient event with a detection latency of less than or equal to 50 milliseconds and/or initiate the mechanically deload during the first swing transient event.

15 . The non-transitory computer-readable medium of claim 11 , wherein the MPSS system is configured to deload the gas turbine system by modulating a blow out valve, by using a trip logic to quickly reduce power production of the gas turbine system, or a combination thereof.

16 . A system, comprising:

a gas turbine system configured to convert a fuel into rotative power;

a gas generator system mechanically coupled to the gas turbine system and configured to generate an electric power based on the rotative power; and

a gas turbine controller configured to:

detect a first swing transient event of a transient event caused by a power grid that is electrically coupled to the generator system, wherein the first swing transient event comprises a first change leading to a first peak in a power angle of the generator system;

mechanically deload the gas turbine system in response to detection of the first swing transient event;

wait until a clearing time has elapsed; and

mechanically load the gas turbine system.

17 . The system of claim 16 , wherein the gas turbine controller is configured to attenuate an oscillation of the power angle of the generator system by the mechanically deload of the gas turbine system to overcome the transient condition in a time period of less than 10 seconds.

18 . The system of claim 16 , wherein the gas turbine controller is configured to detect the transient event by using an excitation system electrically coupled to the generator system.

19 . The system of claim 16 , wherein the gas turbine controller is configured to detect the first swing transient event with a detection latency of less than or equal to 50 milliseconds.

20 . The system of claim 16 , wherein the gas turbine controller is configured to deload the gas turbine system by modulating a blow out valve, by using a trip logic to quickly reduce power production of the gas turbine system, or a combination thereof.