| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce the thermal stress of hot parts of a gas turbine for favorable aas turbine starting by using a generator as a motor and an acceleration rate control means to control a current in the generator so that the gas turbine after warmed up can be accelerated at a preset shaft acceleration rate. SOLUTION: An air compressor 4, a gas turbine 7 and a generator 7 are joined together in a coaxial manner. With the control of a current in the generator, an acceleration rate control means controls the acceleration rate of a gas turbine to be an acceleration rate set value. A starting fuel setting means sets a fuel amount supplied to the gas turbine 7 during acceleration in accordance with a preset process amount to output a starting fuel setting signal. A speed control means outputs a speed control signal to control the rotating speed of a gas turbine shaft to a speed set value. A low value selecting means outputs a signal selected out of the starting fuel set signal and the speed control signal, whichever a lower value, as a fuel amount set signal S4. In this way, the gas turbine can be favorably started.</p> |
