Projects per year
Abstract
The strength of an electrical network connection point is often characterized by the short circuit ratio. Analysis of the fault current contribution at the node can provide information on system impedance, voltage stability, maximum power transfer and system recovery time. However, the introduction of more power converter connected generation decreases the validity of the current short circuit ratio definition. Mainly, the parameters that determine the strength of a connection point cannot be inferred from the fault level contribution. This article presents a discussion on the pitfalls of quantifying the strength of an electrical network using fault current contribution. The limitations of the method for converter dominated networks are presented and alternative definitions from literature are discussed with drawbacks explored. Further considerations for a new index are described, and the article suggests utilizing system impedances for investigation of different stability components. Varying converter control algorithms are explored in terms of impedance, both grid-following and grid-forming. Grid-forming structures without a current loop were found to provide the greatest improvement in voltage stiffness.
Original language | English |
---|---|
Title of host publication | 2022 IEEE Power and Energy Society General Meeting, PESGM 2022 |
Place of Publication | Piscataway, NJ |
Publisher | IEEE |
Pages | 1-5 |
Number of pages | 5 |
ISBN (Electronic) | 9781665408233 |
ISBN (Print) | 9781665408240 |
DOIs | |
Publication status | Published - 27 Oct 2022 |
Event | 2022 IEEE Power and Energy Society General Meeting - Denver, United States Duration: 17 Jul 2022 → 21 Jul 2022 |
Publication series
Name | IEEE Power and Energy Society General Meeting |
---|---|
Volume | 2022-July |
ISSN (Print) | 1944-9925 |
ISSN (Electronic) | 1944-9933 |
Conference
Conference | 2022 IEEE Power and Energy Society General Meeting |
---|---|
Abbreviated title | PES GM 2022 |
Country/Territory | United States |
City | Denver |
Period | 17/07/22 → 21/07/22 |
Keywords
- measurement
- impedance measurement
- stability criteria
- power system stability
- system recovery
- circuit stability
- converter impedance
- SCR
- grid forming converter
Fingerprint
Dive into the research topics of 'Exploring an impedance-based SCR for accurate representation of grid-forming converters'. Together they form a unique fingerprint.Projects
- 1 Finished
-
Doctoral Training Partnership 2018-19 University of Strathclyde | Henderson, Callum
Egea Alvarez, A. (Principal Investigator), Xu, L. (Co-investigator) & Henderson, C. (Research Co-investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/10/19 → 18/05/23
Project: Research Studentship - Internally Allocated