GOVERNOR FOR WATER TURBINE OR PUMP WATER WHEEL

摘要

PURPOSE:To provide a governor which is standardized through decrease of computing processing of a speed control circuit and is increased in stability through decrease of influence of disturbance, by providing an integrator between the speed control circuit and an output switching device. CONSTITUTION:An integrator 7 is located between a speed control circuit 2 and an output switching device 3. The integrator 7 is adapted to limit the upper limit value of the integration where load adjustment and water level adjustment are needed. When adjustment of a desired speed of control is needed, characteristics between the desired speed and a speed responding to an amount integrated in the integrator 7 are adjusted. This constitution causes the speed control circuit 2 to only perform speed control computing processing to enable standardization of a governor. The integration amount of the integrator 7 is compared with a return signal of an opening made through the operation of a servo motor 4. As a result, the output switching device 3 controls the servo motor 4 to control rotation of a water turbine 5.