|Title||Autonomous Demand Response for Primary Frequency Regulation|
|Year of Publication||2012|
|Authors||Matthew K Donnelly, S. Mattix, Dan Trudnowski, Jeffery E Dagle|
|Institution||Pacific Northwest National Laboratory|
|Keywords||demand response, frequency regulation, Load as a Resource, LR11-010|
Demand response has long been an integral part of power system control and operation. Recently, demand response has received more interest as a potentially effective tool to help gain higher levels of asset utilization on the bulk power grid and to avoid or delay the need for new transmission-line construction.
Autonomous demand response is defined as load response to system-based signals rather than to master control signals or price signals from a central dispatch center. The most readily available system-based signal is frequency, which can be a very reliable indicator of grid instability, problems, or abnormal conditions. Speed governing systems at central generating stations, when operating in droop mode, employ frequency as the primary feedback signal. These governors are largely responsible for affecting primary frequency response of the bulk power grid thereby maintaining a continuous balance between supply and demand.
This research examines the use of autonomous demand response to provide primary frequency response in an interconnected grid. Ultimately, it is conceivable that all primary frequency response might be delivered by responsive load leaving dispatchable generation to be base loaded or ramped with