Tunable photonic harvesting for solar energy conversion and dynamic shading tolerance

Patent metadata

Field	Value
Publication number	US-10454412-B2
Application number	US-201514815483-A
Country	US
Kind code	B2
Filing date	Jul 31, 2015
Priority date	Jul 31, 2015
Publication date	Oct 22, 2019
Grant date	Oct 22, 2019

Abstract

Methods, apparatus and systems for tunable photonic harvesting for solar energy conversion and dynamic shading tolerance are provided herein. A method includes determining one or more of multiple portions of a solar photovoltaic module that are underperforming in relation to separate portions of the solar photovoltaic module; configuring multiple reflective surfaces to produce a given configuration of the multiple reflective surfaces in relation to a surface of the solar photovoltaic module based on said determining; collecting (i) direct solar radiation and (ii) diffuse solar radiation incident on a plurality of the multiple reflective surfaces; and distributing (i) the collected direct solar radiation and (ii) the collected diffuse solar radiation across the multiple portions of the solar photovoltaic module in a targeted manner based on the given configuration of the multiple reflective surfaces to offset the underperforming portions of the solar photovoltaic module by a given amount.

First claim

What is claimed is:

1. A method, comprising:
determining one or more underperforming portions of a multiple-portion solar photovoltaic module in relation to one or more separate portions of the solar photovoltaic module, wherein said determining is carried out by a sensor device associated with the solar photovoltaic module;
configuring one or more of multiple reflective surfaces to produce a given configuration of the multiple reflective surfaces in relation to (i) another one or more of the multiple reflective surfaces and (ii) the solar photovoltaic module, wherein the multiple reflective surfaces comprise one or more flat reflective surfaces, one or more convex reflective surfaces, one or more concave reflective surfaces, and one or more semi-concave reflective surfaces, wherein each semi-concave reflective surface comprises a concave portion on an upper portion of the reflective surface, and wherein said configuring is carried out based on said determining the one or more underperforming portions of the solar photovoltaic module;
collecting (i) direct solar radiation and (ii) diffuse solar radiation incident to the multiple reflective surfaces; and
distributing (i) the collected direct solar radiation and (ii) the collected diffuse solar radiation across the solar photovoltaic module in a targeted manner based on the given configuration of the multiple reflective surfaces, thereby offsetting the one or more underperforming portions of the solar photovoltaic module by a given amount, wherein said distributing comprises reflecting (i) the collected direct solar radiation and (ii) the collected diffuse solar radiation off of the multiple reflective surfaces to the solar photovoltaic module in accordance with the given configuration of the multiple reflective surfaces.

2. The method of claim 1 , wherein said configuring the one or more of the multiple reflective surfaces comprises configuring each respective one of the one or more reflective surfaces individually.

3. The method of claim 1 , wherein said configuring the one or more of the multiple reflective surfaces comprises configuring two or more of the multiple reflective surfaces collectively as a group.

4. The method of claim 1 , wherein the given amount comprises a predetermined percentage of production of the highest-producing portion of the solar photovoltaic module.

5. The method of claim 1 , wherein said determining comprises monitoring each of the multiple portions of the solar photovoltaic module.

6. The method of claim 1 , wherein said determining comprises monitoring a given voltage measurement of the solar photovoltaic module relative to an open circuit voltage parameter of the solar photovoltaic module.

7. The method of claim 6 , wherein the open circuit voltage parameter of the solar photovoltaic module comprises a target set-point value of output open circuit voltage.

8. The method of claim 1 , wherein said determining comprises monitoring a time-of-day parameter associated with the solar photovoltaic module.

9. The method of claim 1 , wherein the given configuration of the multiple reflective surfaces comprises at least one of the multiple reflective surfaces being maintained at a fixed angle in relation to the surface of the solar photovoltaic module.

10. The method of claim 1 , comprising:
reconfiguring at least one of the multiple reflective surfaces based on (i) said distributing and (ii) one or more sensing parameters.

11. The method of claim 1 , wherein said distributing in a targeted manner comprises distributing (i) the collected direct solar radiation and (ii) the collected diffuse solar radiation uniformly across the multiple portions of the solar photovoltaic module.

12. The method of claim 1 , wherein the multiple reflective surfaces comprise ten or more reflective surfaces.

Assignees

• IBM

Inventors

• Chandan Vikas
• Kalyanaraman Shivkumar

Classifications

• Y02E10/52

  PV systems with concentrators · CPC title

• H02S40/44

  Means to utilise heat energy, e.g. hybrid systems producing warm water and electricity at the same time (directly associated with the PV cell or integrated with the PV cell H10F77/67) · CPC title

• Y02E10/60

  Thermal-PV hybrids · CPC title

• H02S50/00

  Monitoring or testing of PV systems, e.g. load balancing or fault identification · CPC title

• H02S40/22 Primary

  Light-reflecting or light-concentrating means (directly associated with the PV cell or integrated with the PV cell H10F77/42) · CPC title