- Title
- Design and construction of a power electronics based current injection unit to improve the accuracy of earthing system tests
- Creator
- Foyster, J. E.; Summers, T. J.; Woodhouse, D. J.; Palmer, S.
- Relation
- Australasian Universities Power Engineering Conference (AUPEC 2013). Australasian Universities Power Engineering Conference AUPEC 2013 (Hobart, Tas. 29 September - 2 October, 2013)
- Publisher Link
- http://dx.doi.org/10.1109/AUPEC.2013.6725467
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Resource Type
- conference paper
- Date
- 2013
- Description
- The main method of testing earthing system performance involves the use of an off-frequency injection current produced by a voltage source. While this provides a sufficient testing tool for a number of systems, deficiencies such as noise susceptibility, restricted power capabilities and unstable current present significant challenges to earthing system testers. This paper outlines a novel application of inverter technology to this field. A review of control schemes was undertaken which resulted in the design of a robust method which is stable over a range of system conditions. A hardware prototype design that combined the benefits of a voltage source converter and the aforementioned control scheme was constructed. Furthermore, simulation and testing, in both the laboratory and on-site, demonstrates that the prototype outperforms the existing industry standard.
- Subject
- earthing; earthing system testing; noise; grounding; frequency control; testing; frequency measurement; current measurement; prototypes
- Identifier
- http://hdl.handle.net/1959.13/1342009
- Identifier
- uon:28867
- Identifier
- ISBN:9781479938759
- Language
- eng
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