What are the key components of a turbine governing system and how do they interact to maintain speed and power output?

The key components of a turbine governing system are the speed sensor, the governor controller, the servomotor, and the wicket gates (or needle valve in a Pelton turbine). These components work together in a closed-loop control system to maintain the turbine's speed and power output at the desired setpoints. The speed sensor continuously monitors the turbine's rotational speed and sends a signal to the governor controller. The governor controller compares the actual speed to the desired speed (speed setpoint) and calculates the ne....