Load- and source-based impedance measuring methods: comparing concepts and structural limitations in a laboratory environment
Publication date
2022-02-01
Document type
Konferenzbeitrag
Organisational unit
Book title
NEIS 2021 : Conference on Sustainable Energy Supply and Energy Storage Systems : 13-14 Sept. 2021
First page
31
Last page
36
Peer-reviewed
✅
Part of the university bibliography
✅
DDC Class
620 Ingenieurwissenschaften
Keyword
Grid Impedance
Frequency and time variant impedance
Active passive comparison
Sub periodic impedance
Laboratory environment
Validation
Measurement
Abstract
The time- and frequency-variant impedance is gaining importance as a necessary parameter to describe and determine systems and devices. There is a multitude of use-cases ranging from structural health monitoring to PLC applications. Many measuring concepts have been developed and were implemented in prototypes and first commercial solutions. In regard to the power-flow, all active concepts may be divided into either source-based systems, which actively feed a current into a measuring setup, or load-based approaches, which switch passive loads and therefore draw a current from the setup. The main objective of this paper is to compare and distinguish the two basic concepts within a controlled laboratory environment by switching between a constant and a sub-periodically influenced load scenario.
Version
Published version
Access right on openHSU
Metadata only access