Power generation system and methods for monitoring operation of same

摘要

A method of monitoring a power generation system that includes a steam turbine that is coupled to a gas turbine engine. The method includes calculating, by a control system, a gas turbine engine power output that is based at least in part on a predefined power generation system power output and a predefined steam turbine power output. The power generation system is operated to generate a power output that is approximately equal to the predefined power generation system power output. A signal indicative of a sensed operating power output of the gas turbine engine is transmitted from a sensor to the control system. A condition of the steam turbine is determined based at least in part on the sensed operating gas turbine engine power output and the calculated gas turbine engine power output.

主权项

1. A method of monitoring a power generation system that includes a steam turbine coupled to a gas turbine engine, said method comprising:
calculating, by a control system, a gas turbine engine power output based at least in part on a predefined power generation system power output and a predefined steam turbine power output; operating the power generation system to generate a power output that is approximately equal to the predefined power generation system power output, wherein the power output of the power generation system is generated when steam valves associated with the steam turbine are in a closed position; transmitting, from a sensor to the control system, a signal indicative of a sensed operating power output of the gas turbine engine; and determining a condition of the steam turbine, wherein the condition is steam leakage through the steam valves towards the steam turbine, the condition being determined when the sensed operating power output of the gas turbine engine is less than the calculated gas turbine engine power output.