Hurricane proof solar tracker

Patent metadata

Field	Value
Publication number	US-9496822-B2
Application number	US-201314029860-A
Country	US
Kind code	B2
Filing date	Sep 18, 2013
Priority date	Sep 24, 2012
Publication date	Nov 15, 2016
Grant date	Nov 15, 2016

Abstract

A hurricane-proof solar tracker and related method of operation includes a solar panel array assembly having one end coupled to a ballast and a tilting assembly supporting a solar panel assembly. The tilting assembly tilts the solar panel array assembly to track with the sun in a first position, and retracts the solar panel array to a substantially flat second position.

First claim

What is claimed is:

1. A hurricane-proof solar tracker, comprising:
a solar panel array assembly comprising:
a spine having a longitudinal axis and an end coupled to a first ballast block, the spine being rotatable about the longitudinal axis, the first ballast block configured to be anchored to a terrain; and
a plurality of solar panels;

a tilting assembly supporting said solar panel array assembly, said tilting assembly comprising:
a wing flange coupled to said spine, said wing flange having a pair of mounting sockets;
a pair of trunnion mounts; and
a pair of actuatable telescoping cylinders, wherein each actuatable telescoping cylinder of the pair of actuatable telescoping cylinders is pivotally coupled with respect to a corresponding trunnion mount of the pair of trunnion mounts, and coupled to a corresponding mounting socket of the pair of mounting sockets of the wing flange;

a controller coupled to the tilting assembly, the controller configured to:
actuate the pair of actuatable telescoping cylinders to rotate the spine in an operational mode;
actuate the pair of actuatable telescoping cylinders to retract to a lay-down position in a lay-down mode; and
a pair of second ballast blocks, each trunnion mount of the pair of trunnion mounts coupled to a corresponding second ballast block of the pair of second ballast blocks, each second ballast block forming a cavity, the cavity configured to receive at least a portion of a corresponding actuatable telescoping cylinder in the lay-down mode.

2. The tracker according to claim 1 , further comprising:
a plurality of array arms extending from said spine, each said array arm carrying at least one solar panel, said plurality of array arms rotatable with respect to said spine;
a link arm coupled to the plurality of array arms; and
a linear actuator coupled to said link arm to rotate the plurality of array arms and thereby move all said solar panels to provide a two axis tracker.

3. The tracker according to claim 1 , further comprising:
a wind sensor connected to said controller, said wind sensor generating a high wind signal when wind reaches a predetermined level that is received by said controller which moves said solar panel array assembly to said lay-down position.

4. The tracker according to claim 1 , wherein said controller, upon detection of a power loss, is configured to actuate the pair of actuatable telescoping cylinders to retract to the lay-down position.

5. The tracker according to claim 1 , further comprising:
a berm constructed around a periphery of said solar panel array assembly such that when said solar panel array assembly is in said lay-down position, said solar panel array assembly is flush with or below a top edge of said berm.

6. The solar tracker of claim 1 , where each second ballast block is configured to be anchored to the terrain.

7. The solar tracker of claim 1 , wherein the spine further comprises a shaft, the shaft coupled to the first ballast block and being at least partially rotatable about the first ballast block.

8. The solar tracker of claim 1 , wherein to actuate the pair of actuatable telescoping cylinders to rotate the spine in the operational mode the controller is further configured to actuate one telescoping cylinder of the pair of actuatable telescoping cylinders to extend and another telescoping cylinder of the pair of actuatable telescoping cylinders to partially retract.

Assignees

• Lockheed Corp

Inventors

• Gerwing David H

Classifications

• H02S40/00 Primary

  Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00 · CPC title

• H02S20/32

  specially adapted for solar tracking · CPC title

• Y02E10/47

  Mountings or tracking · CPC title

• F24S30/458 Primary

  with inclined primary axis · CPC title

• F24S2030/131

  in the form of articulated bars · CPC title