OFAKEM, Cedric
(2016)
Overvoltages Associated With Photovoltaic Inverter Transients.
Master's Thesis, University of Pittsburgh.
(Unpublished)
Abstract
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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Details
Item Type: |
University of Pittsburgh ETD
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Status: |
Unpublished |
Creators/Authors: |
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ETD Committee: |
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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 |
URI: |
http://d-scholarship.pitt.edu/id/eprint/26857 |
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