Maximum power point tracking method, photovoltaic system controller and photovoltaic system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 24, 2015
Grant Date -
Dec 1, 2011
app pub date -
May 27, 2011
filing date -
May 28, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Consistent with an example embodiment, a method of tracking a maximum power point (MPP) of a PV (photovoltaic) system comprises a circuit with a controller controlling a DC voltage-DC voltage converter for converting an output current of the PV system; the controller further comprises a memory. The method comprises measuring a first value of a PV system voltage at an initial MPP; storing said first value in said memory; periodically sampling a power output level of said PV system, and upon detecting a change in said power output level exceeding a first threshold, reading the first value from the memory; and adjusting a duty cycle of the DC voltage-DC voltage converter until the circuit voltage matches said first value; the method further comprising fine-tuning the duty cycle of the DC voltage-DC voltage converter to a further MPP following detecting a change in said power output level exceeding a first threshold.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully