| 摘要 |
PURPOSE:To always maintain a bus frequency constant even if the output of a main engine is varied by controlling the output of a turbine generator to hold vapor pressure constant. CONSTITUTION:A frequency controller 2 compares a frequency setter 1 with the output of a bus frequency detector 10 at a shaft generator 7 side, outputs a current set value, and a current controller 3 applies a deviation between the current set value and a current signal of a current transformer 9 for an instrument through a motor-driving/generating mode switching circuit 4, phase controllers 5, 6 to a thyristor inverter 8. A vapor pressure controller 28 compares the output of a vapor pressure setter 26 with the output of a vapor pressure detector 27 for detecting the vapor pressure of a boiler drum, outputs a power set value, and a power controller 15 applies a deviation between the power set value and the output of a power converter 20 to a governor controller 16. |
