초록 ▼

A system and method for modular control of a multi-fuel turbogenerator include separate controllers for controlling fuel supplied to the combustor and power output from the generator. The power controller generates a fuel command based on the required turbine exhaust temperature, where the fuel comm

A system and method for modular control of a multi-fuel turbogenerator include separate controllers for controlling fuel supplied to the combustor and power output from the generator. The power controller generates a fuel command based on the required turbine exhaust temperature, where the fuel command is independent of the particular fuel being used. Fuels may include natural gas, diesel, propane, waste gas, or gasoline, for example. The power controller communicates the fuel command and the airflow or calculated air/fuel ratio to the fuel controller which selects an appropriate mode of operation for the injectors. Injector operating modes include one or more pilot modes where fuel is not mixed with air prior to combustion, and one or more premix modes where fuel is highly mixed with air prior to combustion. The fuel controller implements closed-loop feedback control of a fuel metering device and controls the fuel injectors in the appropriate operating mode based on the fuel command, the energy content of the fuel being used, and the air/fuel ratio.

대표청구항 ▼

1. A method for controlling a turbogenerator, comprising:supplying fuel having known energy content characteristics and air to the turbogenerator; in a first controller, determining an air/fuel ratio required to maintain a selected turbogenerator operating parameter at a selected value; communicatin

1. A method for controlling a turbogenerator, comprising:supplying fuel having known energy content characteristics and air to the turbogenerator; in a first controller, determining an air/fuel ratio required to maintain a selected turbogenerator operating parameter at a selected value; communicating the air/fuel ratio to a second controller; and in the second controller, selecting a fuel injector mode of operation based upon the air/fuel ratio to maintain flame stability.