Solar power system and control system
US9207700B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2011 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | May 27, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/50
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In a case in which a local solution to current-voltage characteristics is generated by way of a partial shade, it has been difficult to perform control for causing a solar cell to operate at a maximum power point efficiently in terms of power and at a low cost. During steady state operation, an MPPT control unit 1 for performing the normal hill climbing method is selected, and if the change amount of the output current of the solar cell is greater than or equal to a predetermined threshold, an MPPT control unit 2 for increasing the variation width of the output voltage of the solar cell to greater than the hill climbing method is selected. By way of such control, it is possible to achieve both efficient operation in a steady state and avoidance of a local solution to a partial shade at a low cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.