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dc.contributor.supervisor Rajapakse, Athula (Electrical and Computer Engineering) en_US
dc.contributor.author Sneath, Jeremy
dc.date.accessioned 2014-09-02T18:50:21Z
dc.date.available 2014-09-02T18:50:21Z
dc.date.issued 2014-09-02
dc.identifier.uri http://hdl.handle.net/1993/23939
dc.description.abstract Different HVDC grid types and the respective protection options are discussed. An earthed bi-pole HVDC grid was modeled in PSCAD, and using simulation results, the necessity of di/dt limiting inductors to contain the rise of fault currents within the capacity of current hybrid DC breakers is demonstrated. The impact of different inductor sizes on current rise was studied. A fault detection and localization scheme using the rate of change of voltage (ROCOV) measured at the line side of the di/dt limiting inductors is proposed. The protection system was modeled and tested under different fault types and locations. The results show that the proposed method of HVDC grid protection is feasible using the current hybrid DC breaker technology. A systematic procedure for setting the necessary protection threshold values is also demonstrated. en_US
dc.rights info:eu-repo/semantics/openAccess
dc.subject HVDC en_US
dc.subject Grid en_US
dc.subject Protection en_US
dc.subject ROCOV en_US
dc.subject Breaker en_US
dc.subject Detection en_US
dc.subject PSCAD en_US
dc.subject Bi-pole en_US
dc.subject Fault en_US
dc.title Grounded HVDC grid line fault protection using rate of change of voltage and hybrid DC breakers en_US
dc.type info:eu-repo/semantics/masterThesis
dc.type master thesis en_US
dc.degree.discipline Electrical and Computer Engineering en_US
dc.contributor.examiningcommittee Gole, Aniruddha (Electrical and Computer Engineering) Leung, Carson (Computer Science) Jacobson, David (Electrical and Computer Engineering) en_US
dc.degree.level Master of Science (M.Sc.) en_US
dc.description.note October 2014 en_US


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