10 October 2012 CPV semi-dense array design for dish and tower collectors
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SST is developing a new Dish CPV dense array system that overcomes the flux uniformity requirement of previous designs. The ability to operate without flux uniformity relaxes the precision requirements of primary collector optics and eliminates homogenizing optics previously required for dense array CPV. Array design can be configured for dish and tower/heliostat systems developed for thermal CSP applications. The design uses industry standard CPV cells and manufacturing materials and methods for minimum cost and high reliability. Nominal input flux to the array for full power is about 250 suns. Internal array optics increase flux to the cells to about 1200 suns. Linear optics provide additional concentration, permit novel use of commercial glass production methods and facilitate power collection design that is integrated with dynamic power conversion and maximum power point tracking (MPPT). Efficient power hybrid packaging methods are used along with advanced liquid cooling “cold-plate” thermal management. Byproduct “waste heat” can be provided for on-site CHP use. We report on the design approach and status of development with the beginning of on-sun alpha testing of the first of 50 kW of CPV modules being produced.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Herb Hayden, Paul Thomas, Nicholas Fette, Zoltan Farkas, Michael Bading, Bradley Stone, Mark Miner, Oliver Stickroth, Nakul Bagewadi, Memo Romero, Birol Sonuparlak, Rainer Eichholz, Michael Ziegler, Edgar Pawlowski, "CPV semi-dense array design for dish and tower collectors", Proc. SPIE 8468, High and Low Concentrator Systems for Solar Electric Applications VII, 84680I (10 October 2012); doi: 10.1117/12.930054; https://doi.org/10.1117/12.930054

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