초록

A gas turbine control for ameliorating the adverse affects of cyclic load applications to both single-shaft and two-shaft gas turbines is disclosed. During cyclic load conditions, air flow is governed to con

대표청구항 ▼

In a control system for a two-shaft gas turbine including a compressor shaft and a load shaft, said compressor and load shafts being independently rotatable, and having a chamber which receives air and fuel for combustion, the combination comprising: means for selecting one of first and second modes

In a control system for a two-shaft gas turbine including a compressor shaft and a load shaft, said compressor and load shafts being independently rotatable, and having a chamber which receives air and fuel for combustion, the combination comprising: means for selecting one of first and second modes of operation of said gas turbine; a plurality of closed-loop fuel control means, each responsive to a different respective operating parameter of the gas turbine and each arranged to supply a respective fuel control signal; gating means responsive to the lowest fuel control signal of said plurality of closed-loop fuel control mens for controlling fuel flow to the combustion chamber; air control means responsive to a certain operating parameter in said first mode of operation and another operating parameter in said second mode of operation for supplying an air flow control signal; and means responsive to said air flow control signal for controlling the air flow to said combustion chamber to maintain an operating parameter of said gas turbine substantially constant.