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Closed loop control system for heliostats

A control system and closed-loop control technology, applied in the field of solar energy collection systems, can solve the problems of increasing hardware failures, increasing system complexity and cost, etc.

Pending Publication Date: 2017-02-22
COMMONWEALTH SCI & IND RES ORG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The addition of hardware on each heliostat device significantly increases the complexity and cost of the system, and also increases the likelihood of hardware failure in the system

Method used

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  • Closed loop control system for heliostats
  • Closed loop control system for heliostats
  • Closed loop control system for heliostats

Examples

Experimental program
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Embodiment Construction

[0070] Overview of Solar Harvesting Systems

[0071] refer to figure 1 , illustrates a plan view of a solar energy collection system 1 comprising a plurality of heliostats 3 arranged in a radially separated circumferential array around a substantially cylindrical central solar receiver 5 . A typical solar collection system includes hundreds of heliostats and can be formed as figure 1 Circular fields or square or other shaped fields.

[0072] like figure 2 Illustrated in , the receiver 5 is mounted on a tower 7 so as to be raised vertically above a substantially horizontally arranged field of heliostats. In operation, the heliostats are positioned to reflect and focus solar energy from the sun onto the receiving surface 9 of the receiver 5 . The receiving surface 9 is designed to receive a directional beam of solar energy from each heliostat field and use the concentrated solar energy to perform useful work, eg by generating electricity. It will be appreciated that variou...

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PUM

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Abstract

The invention relates to a closed loop control system for heliostats. Described herein is a control system for a solar energy collection apparatus (1). The apparatus includes a plurality of individually angularly controllable heliostats (3) disposed 5 adjacent to a central receiver (5). The heliostats are able to be tilted to reflect solar energy towards a target region of the central receiver (5) as a beam of solid angle. The control system includes a measuring device (23) capable of being scanned across a surface of the central receiver (5) including the target region. The measuring device (23) includes a distribution (31) of photo sensors (33) configured to sense the presence of the beam from 10 each heliostat. The control system further includes a controller (21) for performing a closed-loop control procedure (43) to iteratively vary a pointing direction of each heliostat to bring the respective beam into the target region.

Description

[0001] Related applications and patents [0002] PCT patent application PCT / AU2015 / 000066 entitled "Monitoring and measuring of multiple light sources especiallyheliostats". [0003] PCT patent application PCT / AU2011 / 001687 entitled "Heliostat calibration and control", published as WO 2012 / 083383 A1. [0004] Australian Patent 2012203230 entitled "Heliostat calibration and control" which is a national application under PCT / AU2011 / 001687. [0005] Australian Patent 2012203231 entitled "Heliostat control" which is a national application of PCT / AU2011 / 001687. [0006] Australian Patent 2012203234 entitled "Heliostat control" which is a national application of PCT / AU2011 / 001687. [0007] Chinese patent application 4782 / CHENP / 2013 entitled "Heliostat control", which is a national application of PCT / AU2011 / 001687. [0008] US Patent Application 4782 / CHENP / 2013 entitled "Heliostat control", which is a national application of PCT / AU2011 / 001687. [0009] South African patent 2013 / 054...

Claims

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Application Information

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IPC IPC(8): G05D3/12F24S50/20
CPCG05D3/12F24S2050/25
Inventor A.布顿
Owner COMMONWEALTH SCI & IND RES ORG