Title :
The US Army Yuma Proving Ground 900-kVA photovoltaic power station
Author :
Ducey, Roch ; Chapman, Richard ; Edwards, Samuel
Author_Institution :
U.S. Army Constr. Eng. Res. Labs., Champaign, IL, USA
fDate :
29 Sep-3 Oct 1997
Abstract :
In the early spring of 1997, a 900-kVA, utility-tied photovoltaic power station was installed at the US Army Yuma Proving Ground (YPG), in the southwest corner of Arizona. The system will be used to offset peak demand and serve as an emergency power system for YPG´s water treatment plant. The power station includes 450-kWp of Siemens M-55 modules, 5600-kWh of C&D motive power batteries, and a 900-kVA power processing and control system from Trace Technologies. Enhanced by the battery load leveling system, the power station has the capacity to reliably provide from 450- up to 825-kVA to YPG´s utility grid during the summer peak demand season. The YPG system has three basic operating modes: (1) daytime utility-tied, (2) night-time utility-tied, and (3) stand-alone. The amount of power delivered to the grid is governed by either available power from the PV array or by a power level defined by the user, whichever is greater
Keywords :
emergency power supply; photovoltaic power systems; power station control; secondary cells; solar cell arrays; solar power stations; water treatment; 450 kW; 450 to 900 kVA; 5000 kWh; Arizona; Trace Technologies; US Army Yuma Proving Ground; battery load leveling system; control system; daytime utility-tied operation; emergency power system; motive power batteries; night-time utility-tied operation; peak demand offset; photovoltaic power station; power processing system; stand-alone operation; summer peak demand season; utility-tied photovoltaic power station; water treatment plant; Batteries; DC-DC power converters; Inverters; Laboratories; Master-slave; Photovoltaic systems; Power generation; Power system reliability; Rectifiers; Solar power generation;
Conference_Titel :
Photovoltaic Specialists Conference, 1997., Conference Record of the Twenty-Sixth IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-3767-0
DOI :
10.1109/PVSC.1997.654317