Invention Grant
- Patent Title: Adaptive protection for distribution grid based on area concept
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Application No.: US14910300Application Date: 2014-04-30
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Publication No.: US09887531B2Publication Date: 2018-02-06
- Inventor: Alexandre Oudalov , Antonio Fidigatti , Dmitry Ishchenko , Enrico Ragaini , James Stoupis , Luca Milani
- Applicant: ABB Research LTD
- Applicant Address: CH Zurich
- Assignee: ABB Research LTD
- Current Assignee: ABB Research LTD
- Current Assignee Address: CH Zurich
- Agency: Manelli Selter PLLC
- Agent Edward J. Stemberger
- International Application: PCT/EP2014/058885 WO 20140430
- International Announcement: WO2015/024676 WO 20150226
- Main IPC: H02H3/00
- IPC: H02H3/00 ; H02H7/28 ; H02H3/08

Abstract:
Method of protecting a distribution network with a line interconnecting busbars, each busbar being connectable, by means of switching devices adjacent to the busbar, to the line and to loads and/or generators. The method divides the distribution network in multiple protection areas, each comprises a busbar, a protection device and an area controller. Upon a change in connect status of a distribution feeder line, load or generator connectable to one of the busbar, the logic controller in this protection area re-calculates the short circuit level of the areas. Based on the recalculated short circuit levels, the protection settings of the areas may be adapted. The embodiment also provides a system and computer program product adapted to perform the method.
Public/Granted literature
- US20160190790A1 Adaptive Protection For Distribution Grid Based On Area Concept Public/Granted day:2016-06-30
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