Twin Digital of Governor in a 1000 mw Power Plant

The governor is an essential component of the generator set that ensures the engine maintains a stable and consistent speed, which in turn affects the output frequency and voltage of the generated electrical power

The governor output signal to the steam inlet valve or nozzles is selected from two control modes, the Start-Up Speed Controller and the Speed/Load Controller. The Start-Up Speed Controller provides override control during the startup sequence for orderly ramping of the steam turbine through multiple warm up plateaus . Once the unit reaches load speed (i.e., synchronous speed) the Start-Up Speed Controller continues to ramp until its maximum setpoint value (typically the maximum allowable speed configurable) is attained. During the starting and warmup sequence, the Start-Up Speed Controller manages the ramp rates from state to state, the speed at each state, and the dwell times of each speed plateau. We use fuzzy logic modeling method for design and implementation of Twin Digital system for Governor