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RECENT ADVANCES IN OUTDOOR PERFORMANCE EVALUATION OF PV SYSTEMS M. A. Quintana, D. L. cigaret J. E. Cannon, J. R. Woodworth W.E.B son, N. P. Adams D. E. E 8 e e Sandia National Laboratories Albuquerque, NM, 87185-5800 EG&G Special Projects Albuquerque Division Abstract Sandias Photovoltaic Techology Laboratory (PTEL) routinely performs alfresco footraces of a variety of onesun and concentrator PV modules. O r e erience is u that while outdoor test has its own get Zproblems, it loafer roduce results that are more directly applicable to fiepd conditions than testing in solar simulators. We cook recent1 modify both the computer hardware and bundle at the &L to im rove our accuracy and to locoweed with the particular set o?problems encountered in outdoor testing. Improvements in hardware include a computer-controlled solar tracker that allows us to test arrays up to 21 m2 in size; infrared imaging of modules; and electronic scores that allow us to test components with outputs up to 1,800 watts. Improvements i n software include real-time supervise of info collection; a relational data ass that has improved the reliability of test setups, operations and analyses; and a convertible account process that relates module performance to a come in of environmental parameters.

variables, and decrease the cost and turn-around time involved with testing. Specifically, we have belatedly added 1) a immature computer controlled tracker, 2) new electronic loads with the capability of testing components with outputs up to 1,800 watts, 3) an IR tv camera employ to look at module h ot spots, 4) a new data collection and analy! sis system and 5 ) a new standardized reporting format. These recent additions leave alone be discussed in the sections that follow. Solar Trackers We have recently a d d e d t o the PTEL a n a azimuth/elevation solar tracker which w s originally built by ARC0 solar in 1985 and which was recently modified and refurbished by Advanced caloric Systems (ATS).The tracker has an open...If you hope to get a full essay, order it on our website: OrderCustomPaper.com

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