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Method and apparatus for monitoring maximum power point tracking
US9557367B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9557367-B2 |
| Application number | US-201414459363-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 14, 2014 |
| Priority date | Aug 14, 2013 |
| Publication date | Jan 31, 2017 |
| Grant date | Jan 31, 2017 |
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Abstract
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A method and apparatus for monitoring maximum power point tracking (MPPT) by measuring, external to a device that performs the MPPT, a DC current and a DC voltage to obtain a DC current value and a DC voltage value, wherein the DC current and the DC voltage are from a distributed generator (DG) coupled to the device. The method determining, external to the device, a constellation of data points, wherein each data point of the constellation comprises a DC voltage change and a corresponding DC current change resulting from an AC waveform, and determining, a dynamic resistance of the DG based on the constellation. The method computes a ratio of the DC voltage value to the DC current value, compares the dynamic resistance to the ratio, and determines, based on the comparison of the dynamic resistance to the ratio, if the DG is biased at a maximum power point (MPP).
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for monitoring maximum power point tracking (MPPT) operation comprising: measuring, external to a device that performs the MPPT, a DC current and a DC voltage to obtain a DC current value and a DC voltage value, wherein the DC current and the DC voltage are from a distributed generator (DG) coupled to the device; determining, external to the device, a constellation of data points, wherein each data point of the constellation comprises a DC v…
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Classifications
- H02S50/00Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Physics · mapped topic
- G01R31/2605Primary
Physics · mapped topic
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- What does patent US9557367B2 cover?
- A method and apparatus for monitoring maximum power point tracking (MPPT) by measuring, external to a device that performs the MPPT, a DC current and a DC voltage to obtain a DC current value and a DC voltage value, wherein the DC current and the DC voltage are from a distributed generator (DG) coupled to the device. The method determining, external to the device, a constellation of data points…
- Who is the assignee on this patent?
- Enphase Energy Inc
- What technology area does this patent fall under?
- Primary CPC classification H02S50/00. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 31 2017 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).