Direct DC-DC electric vehicle charging with a grid connected photovoltaic system

Author

Vaidya, M. ; Stefanakos, E.K. ; Krakow, B. ; Lamb, H.C. ; Arbogast, T. ; Smith, T.

Author_Institution

Univ. of South Florida, Tampa, FL, USA

fYear

1996

fDate

13-17 May 1996

Firstpage

1505

Lastpage

1508

Abstract

The Electric Vehicle/Photovoltaic Demonstration and Evaluation Program being conducted at the University of South Florida (USF) includes a 20 kW (peak) photovoltaic (PV) system in which PV panels form the roof of a 12 bay carport. A 6 kW (peak) segment of the PV system can be simultaneously distributed between computer controlled direct DC-DC charging and power grid interconnection. The DC-DC charger (DC-DAS) controls the charging current of a battery pack with minimal power waste, by computer control of current flow direction of each of four source circuits. It demonstrates superior efficiency, dependability and safety for DC-DC charging over DC-AC-DC charging and has greater control over the last 20% of charge than traditional PV DC-DC chargers

Keywords

DC-DC power convertors; computerised control; electric current control; electric vehicles; photovoltaic power systems; power engineering computing; secondary cells; solar cell arrays; 20 kW; 6 kW; DC-DC charger; Electric Vehicle/Photovoltaic Demonstration and Evaluation Program; PV panels; University of South Florida; battery pack; carport; charging current control; computer control; computer controlled direct DC-DC charging; current flow direction control; direct DC-DC electric vehicle charging; grid connected photovoltaic system; minimal power waste; power grid interconnection; roof; safety; Control systems; Distributed computing; Distributed control; Electric vehicles; Grid computing; Integrated circuit interconnections; Photovoltaic systems; Power grids; Power system interconnection; Solar power generation;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialists Conference, 1996., Conference Record of the Twenty Fifth IEEE

Conference_Location

Washington, DC

ISSN

0160-8371

Print_ISBN

0-7803-3166-4

Type

conf

DOI

10.1109/PVSC.1996.564422

Filename

564422