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Title: Alignment method for solar collector arrays

Abstract

The present invention is directed to an improved method for establishing camera fixture location for aligning mirrors on a solar collector array (SCA) comprising multiple mirror modules. The method aligns the mirrors on a module by comparing the location of the receiver image in photographs with the predicted theoretical receiver image location. To accurately align an entire SCA, a common reference is used for all of the individual module images within the SCA. The improved method can use relative pixel location information in digital photographs along with alignment fixture inclinometer data to calculate relative locations of the fixture between modules. The absolute locations are determined by minimizing alignment asymmetry for the SCA. The method inherently aligns all of the mirrors in an SCA to the receiver, even with receiver position and module-to-module alignment errors.

Inventors:
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1079238
Patent Number(s):
8294886
Application Number:
12/689,798
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F24 - HEATING F24S - SOLAR HEAT COLLECTORS
G - PHYSICS G01 - MEASURING G01B - MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY

Citation Formats

Driver, Jr., Richard B. Alignment method for solar collector arrays. United States: N. p., 2012. Web.
Driver, Jr., Richard B. Alignment method for solar collector arrays. United States.
Driver, Jr., Richard B. Tue . "Alignment method for solar collector arrays". United States. https://www.osti.gov/servlets/purl/1079238.
@article{osti_1079238,
title = {Alignment method for solar collector arrays},
author = {Driver, Jr., Richard B},
abstractNote = {The present invention is directed to an improved method for establishing camera fixture location for aligning mirrors on a solar collector array (SCA) comprising multiple mirror modules. The method aligns the mirrors on a module by comparing the location of the receiver image in photographs with the predicted theoretical receiver image location. To accurately align an entire SCA, a common reference is used for all of the individual module images within the SCA. The improved method can use relative pixel location information in digital photographs along with alignment fixture inclinometer data to calculate relative locations of the fixture between modules. The absolute locations are determined by minimizing alignment asymmetry for the SCA. The method inherently aligns all of the mirrors in an SCA to the receiver, even with receiver position and module-to-module alignment errors.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {10}
}

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Works referenced in this record:

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Improved Alignment Technique for Dish Concentrators
conference, January 2009


Optical Evaluation Techniques For Reflecting Solar Concentrators
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Photogrammetry: An Available Surface Characterization Tool for Solar Concentrators, Part II: Assessment of Surfaces
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Advances in Parabolic Trough Solar Power Technology
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Development and Characterization of a Color 2F Alignment Method for the Advanced Dish Development System
conference, January 2009


Optical Evaluation of Composite-Based Reflector Facets for Parabolic Trough Concentrators
conference, December 2008