Publication Date:
2019-07-13
Description:
Sun-tracking solar energy-focusing devices involving a central receiver, thermionic conversion, or a distributed solar thermal collector system are described. The Perkins solar collector uses a fixed focal point about which an 18 m-diameter parabolic dish moves on tracks. The elevation axis also moves on a circular track. A microprocessor manipulates sun sensor information and sun ephemeris data to ensure correct placement. Stepper motors are digital devices which provide direct interface with digital electronics and a wide dynamic range, and could easily be associated with the microprocessors. Design philosophy, performance criteria, wind load analysis, and control system requirements are also discussed.
Keywords:
ENERGY PRODUCTION AND CONVERSION
Type:
Annual Symposium on Incremental Motion Control Systems and Devices; May 24, 1977 - May 27, 1977; Urbana, IL
Format:
text
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