Method for diagnosing internal loss mechanism of solar cell
US-2024348206-A1 · Oct 17, 2024 · US
Active diagnostics and ground fault detection on photovoltaic strings
US9024640B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9024640-B2 |
| Application number | US-201213607932-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 10, 2012 |
| Priority date | Sep 10, 2012 |
| Publication date | May 5, 2015 |
| Grant date | May 5, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A PV system includes a plurality of PV strings configured to generate a string output power responsive to received solar irradiation, with a source conductor and a return conductor being provided from the PV strings. One or more DC voltage regulators are electrically connected to the PV strings on at least one of the source or return conductors, with the DC voltage regulator being configured to regulate the voltage of a respective PV string or group of strings. A controller selectively controls a voltage output by the DC voltage regulator and is programmed to periodically cause the DC voltage regulator to alter the voltage of a PV string or group of strings, detect a change in current in the respective PV string(s) responsive to the altering of the voltage, and perform at least one of a PV string degradation detection and causal diagnosis and a grounded conductor fault detection.
First claim
Opening claim text (preview).
What is claimed is: 1. A photovoltaic (PV) system comprising: a PV array comprising a plurality of PV strings configured to generate a string output power responsive to received solar irradiation, with a source conductor and a return conductor being provided from the PV strings; a combiner box having a DC link therein connected to the plurality of PV strings, wherein the plurality of PV strings are connected to the DC link in a parallel arrangement; a PV inverter electrically…
Assignees
Inventors
Classifications
- H02S50/10Primary
Electricity · mapped topic
Physics · mapped topic
- G01R31/025Primary
Physics · mapped topic
Physics · mapped topic
Cross-Sectional Technologies · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9024640B2 cover?
- A PV system includes a plurality of PV strings configured to generate a string output power responsive to received solar irradiation, with a source conductor and a return conductor being provided from the PV strings. One or more DC voltage regulators are electrically connected to the PV strings on at least one of the source or return conductors, with the DC voltage regulator being configured to…
- Who is the assignee on this patent?
- Liu Yu, Luebke Charles John, Thompson Christopher Scott, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H02S50/10. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 05 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).