| 摘要 |
PURPOSE:To provide a turbine controller of low cost, simple structure and quick response enough for control, by providing a digital processors in the valve opening degree control section of the controller so that the processors receive a valve opening degree command signal from a speed control section. CONSTITUTION:A number (m) of digital processors 20 for a number (n) of control valves 15 are provided in a valve opening degree control section 14 for regulating the control valves 15, which function to adjust the flow rate of steam to be introduced into a turbine. The valve opening degree command theta0 from a speed control section 13 is applied to the digital processors 20. The actual opening degree theta1-thetan of the control valves 15 are also applied to the processors, which sends out opening degree adjuting instructions fj1-fjn for the valves 15 on the basis of the command signal theta0 and actual opening degree signals theta1- thetan. The sum of the valve opening degree adjusting instructions fj1-fjn is determined by an adder 21 and then amplified at 19. The amplified signal is applied to a valve drive section 17 to regulate the control valves 15. |
