System and method for mass flow control of an exhaust gas recirculation system of a gas turbine

A system, comprising:

• a controller having a processor, a memory, and instructions stored on the memory and executable by the processor to perform:
• receiving a first indication to increase a mass flow rate of an exhaust gas through an exhaust gas recirculation (EGR) circuit of an EGR system coupled to a gas turbine system from a first mass flow rate to a second mass flow rate, wherein the gas turbine system comprises a compressor, a combustor, and a turbine, wherein the gas turbine system is configured to combust a fuel and output the exhaust gas;
• controlling, via a first control, an EGR blower of the EGR circuit in response to the first indication to increase the mass flow rate from the first mass flow rate to the second mass flow rate;
• and
• controlling, via a second control, an EGR outlet damper and the EGR blower of the EGR circuit to decrease a power consumption of the EGR blower while substantially maintaining the mass flow rate at the second mass flow rate.

A method of controlling a mass flow of an exhaust gas to be delivered from an exhaust gas recirculation (EGR) system to a gas turbine system, comprising:

• receiving, via a controller, a first indication to increase a mass flow rate of the exhaust gas through an EGR circuit of the EGR system coupled to the gas turbine system from a first mass flow rate to a second mass flow rate, wherein the gas turbine system comprises a compressor, a combustor, and a turbine, wherein the gas turbine system is configured to combust a fuel and output the exhaust gas;
• controlling, via a first control of the controller, an EGR blower of the EGR circuit in response to the first indication to increase the mass flow rate from the first mass flow rate to the second mass flow rate;
• and
• controlling, via a second control of the controller, an EGR outlet damper and the EGR blower of the EGR circuit to decrease a power consumption of the EGR blower while substantially maintaining the mass flow rate at the second mass flow rate.