Sponsor
Portland State University. Department of Electrical and Computer Engineering
First Advisor
Robert Bass
Date of Publication
Spring 6-15-2015
Document Type
Thesis
Degree Name
Master of Science (M.S.) in Electrical and Computer Engineering
Department
Electrical and Computer Engineering
Language
English
Subjects
Battery charging stations (Electric vehicles) -- Design and construction, Electric power distribution -- Equipment and supplies, Computer hardware description languages -- Research
DOI
10.15760/etd.2294
Physical Description
1 online resource (viii, 138 pages)
Abstract
In power distribution system planning, it is essential to understand the impacts that electric vehicles (EVs), and the non-linear, time-variant loading profiles associated with their charging units, may have on power distribution networks. This research presents a design methodology for the creation of both analytical and behavioral models for EV charging units within a VHDL-AMS simulation environment.
Voltage and current data collected from Electric Avenue, located on the Portland State University campus, were used to create harmonic profiles of the EV charging units at the site. From these profiles, generalized models for both single-phase (Level 2) and three-phase (Level 3) EV chargers were created. Further, these models were validated within a larger system context utilizing the IEEE 13-bus distribution test feeder system.
Results from the model's validation are presented for various charger and power system configurations. Finally, an online tool that was created for use by distribution system designers is presented. This tool can aid designers in assessing the impacts that EV chargers have on electrical assets, and assist with the appropriate selection of transformers, conductor ampacities, and protection equipment & settings.
Rights
In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
Persistent Identifier
http://archives.pdx.edu/ds/psu/15464
Recommended Citation
Zimmerman, Nicole P., "Time-Variant Load Models of Electric Vehicle Chargers" (2015). Dissertations and Theses. Paper 2297.
https://doi.org/10.15760/etd.2294