MW output from generator closely related to speed of the prime mover of generating system which in turn related to the steam flow (pressure). The load on a turbine generating unit does not remain constant and can vary as per consumer requirement. The mismatch between load and generation results in the speed (or frequency) variation. When the load varies, the generating system also has to vary to match it to keep the speed constant. This job is done by the governing system.
Governing system controls the steam flow to the turbine in response to the control signals like speed variation and load (power) variation.
Thermal Power Plant
Re: Thermal Power Plant
