Approaches to network protection for inverter dominated electrical distribution systems

R. Tumilty, M. Brucoli, G.M. Burt, T. Green

Research output: Contribution to conferencePaper

Abstract

The use of the micro-grid paradigm with extensive inverter interfaced generation raises the problem of severely restricted fault levels when operating in a power island. This paper presents a review of the conventional distribution network protection practices and then discusses their limitations when applied to inverter dominated micro-grids. The use of voltage measurement based fault detection is considered and is followed by consideration of how to apply this technique in conjunction with an adaptive form of protection. A potential solution for small micro-grids is presented in the form of voltage controlled overcurrent devices to enable the use of lower current threshold settings. Key issues for the design of network protection within micro-grids are summarised
Original languageEnglish
Pages622-626
Number of pages5
Publication statusPublished - Mar 2006
Event3rd IET International Conference on Power Electronics, Machines and Drives - Dublin, Ireland
Duration: 4 Apr 20066 Apr 2006

Conference

Conference3rd IET International Conference on Power Electronics, Machines and Drives
Abbreviated titlePEMD 2006
CountryIreland
CityDublin
Period4/04/066/04/06

Keywords

  • overcurrent protection & fault level
  • inverter
  • network protection
  • electrical distribution systems

Cite this

Tumilty, R., Brucoli, M., Burt, G. M., & Green, T. (2006). Approaches to network protection for inverter dominated electrical distribution systems. 622-626. Paper presented at 3rd IET International Conference on Power Electronics, Machines and Drives, Dublin, Ireland.