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Overvoltages Associated With Photovoltaic Inverter Transients

OFAKEM, Cedric (2016) Overvoltages Associated With Photovoltaic Inverter Transients. Master's Thesis, University of Pittsburgh. (Unpublished)

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Increased penetration of solar photovoltaic (PV) can cause significant overvoltages during faults and back-fed fault current into grid while causing miss-operation of protective relaying. Transient data from four single-phase PV inverters was collected during both open-circuit and short circuit transient events. Each inverter was tested at four different output power levels and multiple tests were run for each case to account for point-on-wave effects on the transient magnitudes. Test program designs are presented to cover a range of inverter operating conditions and grid configurations. The data was used to plot the overvoltages and overcurrents associated with the transient events. In some cases, the inverters can produce transient overvoltages > 1.6 p.u. and transient overcurrents > 14 p.u. In addition, theoretical magnitudes of transient overvoltages can be compared with the laboratory result.


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Item Type: University of Pittsburgh ETD
Status: Unpublished
CreatorsEmailPitt UsernameORCID
OFAKEM, Cedricofakem_banock@yahoo.frBCO8
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee ChairMcDermott, Thomastem42@pitt.eduTEM42
Committee MemberMao, Zhi-Hongzhm4@pitt.eduZHM4
Committee MemberReed, Gregorygfr3@pitt.eduGFR3
Date: 15 June 2016
Date Type: Publication
Defense Date: 15 December 2015
Approval Date: 15 June 2016
Submission Date: 25 February 2016
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Number of Pages: 70
Institution: University of Pittsburgh
Schools and Programs: Swanson School of Engineering > Electrical Engineering
Degree: MS - Master of Science
Thesis Type: Master's Thesis
Refereed: Yes
Uncontrolled Keywords: distributed power generation grounding inverters power distribution power system modelling inverter testing smart grid
Date Deposited: 15 Jun 2016 13:02
Last Modified: 15 Nov 2016 14:31


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