Module 3 : Frequency Control in a Power System
Lecture 16 : Automatic Generation Control (AGC)
 
   Recap

   In this lecture you have learnt the following

AGC is control scheme which ensures that frequency deviation from the nominal value is brought to zero, and the power flows between different areas in an interconnected system are regulated.
 
While governors act relatively fast to arrest frequency decline, AGC is slow acting. While governors can be present on almost all generators in a system, AGC is present only in selected units.
 
Tertiary control involves adjusting generator powers due to economic reasons. This is the slowest generator power control action.
 
Congratulations, you have finished Lecture 16. Please view the next slide for concluding remarks for this module.