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Published September 2016 | public
Journal Article

Connecting Automatic Generation Control and Economic Dispatch From an Optimization View


Automatic generation control (AGC) regulates mechanical power generation in response to load changes through local measurements. Its main objective is to maintain system frequency and keep energy balanced within each control area in order to maintain the scheduled net interchanges between control areas. The scheduled interchanges as well as some other factors of AGC are determined at a slower time scale by considering a centralized economic dispatch (ED) problem among different generators. However, how to make AGC more economically efficient is less studied. In this paper, we study the connections between AGC and ED by reverse engineering AGC from an optimization view, and then we propose a distributed approach to slightly modify the conventional AGC to improve its economic efficiency by incorporating ED into the AGC automatically and dynamically.

Additional Information

© 2015 IEEE. Manuscript received September 28, 2014; revised March 2, 2015; accepted June 21, 2015. Date of publication July 21, 2015; date of current version September 15, 2016. Some preliminary results of this work were originally presented in Americal Control Conference 2014. The authors would like to thank Dr. S. Low of the California Institute of Technology for the helpful and constructive discussions.

Additional details

August 20, 2023
October 20, 2023