Mitsubishi Power Americas, Inc.

Mitsubishi Power, Ltd.

Mitsubishi Hitachi Power Systems Americas, Inc.

Lisa Batsch-Smith

Scott Cloyd

Angel Hernandez

Stephen Bramham

Beth Hays

Disclosed are systems and methods for active inlet turbine control. The systems and methods may include receiving a plurality of signals, determining a temperature gradient across an inlet of a gas turbine engine, and transmitting an activation signal to a modulating valve. Each of the plurality of signals may correspond to a temperature measured by one of a plurality of sensors located proximate the inlet of the gas turbine engine. The temperature gradient across the inlet of the gas turbine engine may be determined based on the plurality of signals. The activation signal may be operative to open or close the modulating valve based on the temperature gradient.

Active inlet turbine control

A method () of controlling an imbalance response in a power plant comprising first and second gas turbine engines and a steam turbine driven by steam generated by exhaust from the first and second gas turbine engines can comprise operating the first gas turbine engine at a first power output (A), operating the second gas turbine engine at a second power output (B), monitoring load demand from a power grid operating at a steady state condition (), detecting a load imbalance on the power grid () that causes a deviation from the steady state condition, and adjusting the first power output and the second power output incongruently () during the imbalance response to change the first power output and the second power output to match the deviation from the steady state condition depending on contemporaneous efficiency states of the first and second gas turbine engines.

Power plants using incongruent load imbalance response

A method of reducing applied heat within an inlet duct of a gas turbine generating electricity includes applying heat to the inlet duct of the gas turbine to attain an initial temperature set point and to produce conditions sufficient for preventing formation of ice within the inlet duct, measuring a position of an inlet guide vane (IGV) of the gas turbine, an inlet duct temperature, and an inlet duct relative humidity to determine a thermodynamic state in the inlet duct, evaluating the thermodynamic state to determine if the conditions are sufficient for preventing formation of ice within the inlet duct, and in response to determining that sufficient conditions exist within the inlet duct for preventing formation of ice, adjusting the applied heat to maintain the measured inlet duct temperature.

Growing community of inventors

Orlando, FL, United States of America

Lisa Batsch-Smith