The Library
National Grid frequency trace
Tools
MacKay, Robert S. (2021) National Grid frequency trace. [Dataset]
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://doi.org/10.5061/dryad.z34tmpgb4
Abstract
The dataset provides the GB grid frequency every second for two hours (02.00-04.00) on 1 September 2015 (at some location that I do not remember). I used it to test some linear stochastic process models for the frequency as a function of time. On the 2-hour timescale the trace fit reasonably well to an Ornstein-Uhlenbeck (OU) process with a decay time of around 30 minutes. On a shorter timescale, in particular the first 3 minutes 20 seconds, the trace looked smooth so I fitted it to a first-order filtered OU process, which gave me time constants of 11 minutes and 1.9 seconds. This was important evidence that a useful model for power imbalance as a function of time is a filtered white noise. Furthermore, the power spectrum of the 2-hour trace showed a regime with slope around -4 for periods shorter than 25 seconds, consistent with being a first-order filtered OU process, until the Nyquist cutoff at 2 seconds.
Item Type: | Dataset | ||||||
---|---|---|---|---|---|---|---|
Subjects: | Q Science > QA Mathematics Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Mathematics | ||||||
Type of Data: | Observational data | ||||||
Library of Congress Subject Headings (LCSH): | Frequencies of oscillating systems, National Grid Company, Electric power systems, Linear models (Statistics), Stochastic processes -- Mathematical models | ||||||
Publisher: | University of Warwick, Mathematics Institute | ||||||
Official Date: | 10 March 2021 | ||||||
Dates: |
|
||||||
Status: | Not Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Media of Output (format): | .xlsx | ||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||
Copyright Holders: | Public Domain | ||||||
Description: | Data record consists of the raw data in an attached spreadsheet. |
||||||
RIOXX Funder/Project Grant: |
|
||||||
Contributors: |
|
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |