NDLI: Investigation of the sympathetic tripping problem in power systems with large penetrations of distributed generation

Content Provider	IET Digital Library
Author	Jennett, Kyle I. Booth, Campbell D. Coffele, Federico Roscoe, Andrew J.
Abstract	This study contains an investigation into sympathetic tripping – the undesirable disconnection of distributed generators (DGs) (in accordance with the recently-introduced G83/2 under voltage protection) when a network fault occurs in the vicinity of the DG and is not cleared quickly enough by the network protection (i.e. before the DG's under voltage protection operates). An evaluation of the severity of and proposal of solutions to the problem of sympathetic tripping on a typical UK distribution power network is presented. An inverter model (as the majority of DGs will be inverter-interfaced) that characterises the fault response of the inverter and its associated protection functions has been developed for use in simulation through exhaustive laboratory testing of a commercially-available 3 kW inverter for DG application; the observed responses have been modelled and incorporated in a power system simulation package. It is shown, when using presently-adopted DG interface and network protection settings, that the risk of sympathetic tripping is high in several future scenarios. To mitigate this risk, the impact of modifying network protection settings is evaluated. This study has two key findings – determination of the conditions at which the risk of sympathetic tripping is high and evaluation of a technique to mitigate this risk.
Starting Page	379
Ending Page	385
Page Count	7
ISSN	17518687
Volume Number	9
e-ISSN	17518695
Issue Number	Issue 4, Mar (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/9/4
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2014.0169
Journal	IET Generation, Transmission & Distribution
Publisher Date	2014-12-03
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Associated Protection Function DG Interface Distributed Generation Penetrations Distributed Power Generation Fault Response Inverter Model Invertors Network Fault Network Protection Power 3 KW Power Generation Fault Power Generation Protection Power System Protection Power System Simulation Package Risk Mitigation Sympathetic Tripping Sympathetic Tripping Problem UK Distribution Power Network Voltage Protection
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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