SOLAR PHOTOVOLTAIC SYSTEMS

Title:

SOLAR PHOTOVOLTAIC SYSTEMS

Document Type and Number:

WIPO Patent Application WO/2011/154720

Kind Code:

A3

Abstract:

We describe a photovoltaic power generation system, the system comprising: at least two photovoltaic panels each having a dc power output; a power conditioning unit having a dc power input and an ac mains power supply output for delivering an ac mains supply; wherein said dc power outputs of said at least two photovoltaic panels are connected in parallel with one another to said dc power input of said power conditioning unit; wherein said power conditioning unit comprises a dc-to-dc converter having an input coupled to said dc power input and having an output coupled to a dc link of said power conditioning unit, a dc-to-ac converter having an input coupled to said dc link and having an output coupled to said ac mains power supply output, and an energy storage capacitor coupled to said dc link; wherein said power conditioning unit is configured to perform maximum power point tracking (MPPT) responsive to a level of power flowing into said dc power input, and wherein said level of power flowing into said dc power input is sensed at said dc link.

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Inventors:

CHISENGA LESLEY (GB)
MATTHEWS ANDREW JOHN (GB)
ENGLE PAUL RANDAL (GB)

Application Number:

PCT/GB2011/051028

Publication Date:

June 14, 2012

Filing Date:

June 01, 2011

Export Citation:

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Assignee:

ENECSYS LTD (GB)
CHISENGA LESLEY (GB)
MATTHEWS ANDREW JOHN (GB)
ENGLE PAUL RANDAL (GB)

International Classes:

H02J1/12; H02M5/45; H02M7/537; H02M1/00

Domestic Patent References:

WO2007080429A2

2007-07-19

Foreign References:

US20100309692A1	2010-12-09
GB2478789A	2011-09-21
US20050068012A1	2005-03-31
US20100052425A1	2010-03-04

Other References: