Method for tracking a solar generator to the sun, control for a solar plant and solar plant

Patent metadata

Field	Value
Publication number	US-9846219-B2
Application number	US-201514945611-A
Country	US
Kind code	B2
Filing date	Nov 19, 2015
Priority date	Mar 13, 2009
Publication date	Dec 19, 2017
Grant date	Dec 19, 2017

Abstract

The present invention describes a method for tracking a solar generator having a plurality of solar modules to the sun, wherein at least one electric output quantity of part of the solar module of the solar generator is detected and a tracker, on which the solar generator is mounted, is controlled such that the detected electric output quantity has a predetermined value. Further, a control for a solar plant and a solar plant having such a control are described.

First claim

The invention claimed is:

1. Method for tracking a solar generator to the sun, comprising:
tracking a tracker to the sun; and
during a period of standstill of the tracker, detecting at least one electric output quantity of the solar generator;
wherein, to keep the at least one electric output quantity of the solar generator near a maximum value, the method further comprises:
based on a comparison of two values of the electric output quantity that were detected during the period of standstill, determining whether the tracker is in a position where the electric output quantity lies within a range around a maximum value;
when it is determined that the electric output quantity lies within the range around the maximum value, performing no tracking;
when it is determined that the electric output quantity has left the range around the maximum value, moving the tracker; and
when it is determined that the electric output quantity has again reached the range around the maximum value, stopping the tracker.

2. Method according to claim 1 , wherein, after the electric output quantity has again reached the range around the maximum value and the tracker is stopped, the tracker remains at a standstill until it is determined that the electric output quantity has again left the range around the maximum value.

3. Method for tracking a solar generator to the sun, comprising:
tracking a tracker to the sun; and
during a period of standstill of the tracker, detecting at least one electric output quantity of the solar generator;
wherein, to keep the at least one electric output quantity of the solar generator near a maximum value, the method further comprises:
based on a comparison of two values of the electric output quantity that were detected during the period of standstill, determining whether the tracker is in a position where the electric output quantity lies within a range around a maximum value, the range around the maximum value being determined by a predetermined percentage of a maximum of the electric output quantity obtainable with a current radiation;
when it is determined that the electric output quantity lies within the range around the maximum value, performing no tracking;
when it is determined that the electric output quantity has left the range around the maximum value, moving the tracker; and
when it is determined that the electric output quantity has again reached the range around the maximum value, stopping the tracker.

Assignees

• Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E V
• Fraunhofer-Gesellschaft Zur Foerderung Der Angew Andten Forschung E V

Inventors

• Burger Bruno
• Stalter Olivier

Classifications

• Y02E10/47

  Mountings or tracking · CPC title

• G01S3/7861 Primary

  Solar tracking systems · CPC title

• G05D3/105

  Solar tracker · CPC title

• H02S20/32

  specially adapted for solar tracking · CPC title

• F24J2/38

  Mechanical Engineering · mapped topic