IP Library Granted Patent US 8,449,692
Granted Patent B2
US 8,449,692 · App. 12/704,860 · Granted May 28, 2013

Heliostat field cleaning system

Inventors: Jason Blair (Pasadena, CA); Stephen Brawner (Pasadena, CA); Brian Coleman (Pasadena, CA); Alan Greaney (Buena Park, CA); Christian Gregory (La Crescenta, CA); Marc Grossman (Pasadena, CA); Gregg Luconi (Monrovia, CA); Carter Moursund (Pasadena, CA); Ulrik Pilegaard (Glendale, CA); Steven Schell (Arcadia, CA); Craig Tyner (Albuquerque, NM)
Assignee: Esolar, Inc.
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Quick Facts
Patent No.
US 8,449,692
App. No.
12/704,860
Granted
May 28, 2013
Kind
B2
Abstract

Systems and methods of heliostat reflector cleaning via a vehicle in a heliostat field.

Claims (10)

1. A system comprising

an array of a plurality of heliostats;

a cleaning vehicle configured to clean at least a portion of a reflector of a heliostat of the array of heliostats via a cleaning end-effector, and wherein the cleaning vehicle is further configured to reorient the cleaning end-effector responsive to a detected proximate next heliostat reflector misoriented for cleaning;

a heliostat controller and motor assembly configured to reorient a heliostat reflector from a non-cleaning mode to a cleaning mode, and responsive to at least one of: a command to reorient and a detected proximity of the cleaning vehicle to the heliostat reflector.

2. The system of claim 1 wherein the non-cleaning mode is a sun-tracking mode.

3. The system of claim 1 wherein the cleaning vehicle is further configured to translate to a region proximate to a heliostat oriented for cleaning.

4. The system of claim 1 wherein the cleaning vehicle is further configured to detect a heliostat reflector misoriented for cleaning.

5. The system of claim 1 wherein the cleaning vehicle is further configured to translate by retracing a path.

6. The system of claim 1 wherein the system further comprises one or more arrays and wherein the cleaning vehicle is further configured to be unidirectionally oriented and to execute a U-turn at a detected end of at least one array.

7. The system of claim 1 wherein the vehicle is self-navigating.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 9, 2018
From: ESOLAR, INC.
To: AALBORG CSP
Reel/Frame 046665/0965 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 12, 2010
From: BLAIR, JASON; BRAWNER, STEPHEN; COLEMAN, BRIAN; GREANEY, ALAN; GREGORY, CHRISTIAN; GROSSMAN, MARC; LUCONI, GREGG; MOURSUND, CARTER; PILEGAARD, ULRIK; SCHELL, STEVEN; TYNER, CRAIG
To: ESOLAR, INC.
Reel/Frame 023932/0275 →
Continuity (2)
Provisional Application 61207629 · Feb 13, 2009
Related Publication 20100206294A1 · Aug 19, 2010