XRX-Köhler optical design and illumination optimization

Blake Coughenour; Roger Angel

doi:10.1117/12.2073205

17 December 2014 XRX-Köhler optical design and illumination optimization

Blake Coughenour, Roger Angel

Proceedings Volume 9293, International Optical Design Conference 2014; 929312 (2014) https://doi.org/10.1117/12.2073205
Event: International Optical Design Conference, 2014, Kohala Coast, Hawaii, United States

Abstract

This paper describes the optical and illumination design of a CPV solar energy system. The challenges of creating a highly efficient yet low-cost system architecture come from many sources, but are primarily limited by the photoelectron conversion efficiency of the cells and the illumination performance of the system for on-axis and off-axis pointing scenarios. Furthermore, the need for high solar spectral throughput, evenly concentrated sunlight, and tolerance to offaxis pointing places strict illumination requirements on the optical design. To be commercially viable, the cost associated with all components must be minimized so that when taken together, the absolute installed cost of the system in kWh is lower than any other solar energy method. We present two low-cost optical design embodiments of a dishbased concentration photovoltaic (CPV) system that utilize Köhler illumination to achieve good illumination uniformity across an array of solar cells. Further optimization for active shadowing compensation and compound electrical I-V curve modeling for the solar cell array is performed that allows realistic off-axis performance scenarios to be modeled with the correct power response sensitivity.

Citation Download Citation

Blake Coughenour and Roger Angel "XRX-Köhler optical design and illumination optimization", Proc. SPIE 9293, International Optical Design Conference 2014, 929312 (17 December 2014); https://doi.org/10.1117/12.2073205

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Solar cells

Mirrors

Reflectors

Optical design

Solar energy

Sun

Silica

Show All Keywords

Keywords/Phrases

Search In:

Publication Years