Frequency threshold determination for frequency-responsive load controllers

Lian, Jianming; Sun, Yannan; Marinovici, Laurentiu D.; Kalsi, Karanjit; Hansen, Jacob Gorm

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DOE OSTI · 1650909

Frequency threshold determination for frequency-responsive load controllers

Lian, Jianming·Sun, Yannan·Marinovici, Laurentiu D.·Kalsi, Karanjit·Hansen, Jacob Gorm

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Abstract

Systems, methods, and computer media for managing frequency response in a power grid are provided herein. Individual grid-connected electrical devices can be turned on and/or off by corresponding frequency-responsive load controllers when frequency deviations beyond a threshold are detected. Each controller selects, for the corresponding electrical device, a frequency threshold from available frequencies in a frequency range. If the selected frequency falls within a deadband frequency range, then the controller sets the frequency threshold to a frequency outside of the deadband (e.g., to a closest available frequency outside of the deadband). On a system-wide level, this approximates a uniform distribution of frequency thresholds over the entire frequency range, including the deadband, and achieves the proper power-to-frequency relationship for grid stability. A supervisory coordinator can determine the frequency range from which a frequency threshold is selected based on aggregated power information for devices and controllers throughout the grid.

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BibTeX RIS

Lian, Jianming, Sun, Yannan, Marinovici, Laurentiu D., Kalsi, Karanjit, Hansen, Jacob Gorm. 2020-05-12. Frequency threshold determination for frequency-responsive load controllers. https://www.osti.gov/biblio/1650909

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