Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

# Frequency Response Characteristic (FRC) Curve and Fast Frequency Response Assessment in High Renewable Power Systems

Version 1 : Received: 25 October 2020 / Approved: 26 October 2020 / Online: 26 October 2020 (11:40:43 CET)

How to cite: You, S. Frequency Response Characteristic (FRC) Curve and Fast Frequency Response Assessment in High Renewable Power Systems. Preprints 2020, 2020100516 (doi: 10.20944/preprints202010.0516.v1). You, S. Frequency Response Characteristic (FRC) Curve and Fast Frequency Response Assessment in High Renewable Power Systems. Preprints 2020, 2020100516 (doi: 10.20944/preprints202010.0516.v1).

## Abstract

This letter introduces a frequency response characteristic (FRC) curve and its application in high renewable power systems. In addition, the letter presents a method for fast frequency response assessment and frequency nadir prediction without performing dynamic simulations using detailed models. The proposed FRC curve and fast frequency response assessment method are useful for operators to understand frequency response performance of high renewable systems in real time.

## Keywords

Frequency response characteristic (FRC) curve; frequency response; renewable generation; governor

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