System description document: collector subsystem for the 10 MWe solar thermal central receiver pilot plant. Phase II

Technical Report · Fri Aug 01 04:00:00 EDT 1980

OSTI ID:7124120

Each heliostat consists of: (1) the mirror assembly; (2) the mirror support or rack assembly; (3) the drive mechanism; (4) the main support pedestal; (5) the pedestal foundation; and (6) associated instrumentation, controls, and signal cabling; see Figure M2-2. The components are designed to be transported by highway and railroad carriers using standard transport vehicles and materials handling equipment and within applicable federal and state regulations. The heliostats are designed for a 30-year life. Control of the field of heliostats is accomplished by means of a distributed computer control system consisting of a minicomputer located in the plant control room and a network of data buses and microcomputer-based controllers located at the heliostats. The reflective surface on each heliostat is rotated about azimuth and elevation axes by means of a gear-drive unit and electric motors. The actual azimuth and elevation angles are determined by means of incremental optical encoders and a microcomputer, and the microcomputer provides the logic to turn the drive motors on and off as required. The Heliostat Array Controller (HAC) computer system consists of a set of identical, dual-redundant MODCOMP CLASSIC computers, with a set of peripheral and input/output equipment needed to satisfy the HAC computer system requirements.

• Research Organization: Martin Marietta Corp., Denver, CO (USA). Denver Div.
• DOE Contract Number: AC03-80SF10539
• OSTI ID: 7124120
• Report Number(s): DOE/SF/10539-06; STMPO-293; MCR-80-1362; ON: DE84011426
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140702* -- Solar Thermal Power Systems-- Central Receiver
BARSTOW SOLAR PILOT PLANT
COMPUTERIZED CONTROL SYSTEMS
COMPUTERS
CONTROL SYSTEMS
DESIGN
ELECTRONIC CIRCUITS
EQUIPMENT
FUNCTIONAL MODELS
HELIOSTATS
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
MIRRORS
PILOT PLANTS
POWER PLANTS
SOLAR EQUIPMENT
SOLAR POWER PLANTS
SOLAR THERMAL POWER PLANTS
THERMAL POWER PLANTS
TOWER FOCUS POWER PLANTS