Global Patent Index - EP 2722725 A1

EP 2722725 A1 20140423 - Device for tracking a maximum power point of a power source

Title (en)

Device for tracking a maximum power point of a power source

Title (de)

Vorrichtung zur Verfolgung eines Punktes maximaler Leistung einer Stromquelle

Title (fr)

Dispositif de suivi de point d'alimentation maximale d'une source d'alimentation

Publication

EP 2722725 A1 20140423 (EN)

Application

EP 12188687 A 20121016

Priority

EP 12188687 A 20121016

Abstract (en)

The present invention concerns a device for tracking the maximum power point of a power source. The device comprises: - means for estimating, at a first voltage provided by the power source, a derivative of the power provided by the power source with respect to a change of the voltage provided by the power source, - means for estimating the current provided by the power source when the power source provides the first voltage, - means for determining a voltage step value from the estimated derivative of the power provided by the power source and from the estimated current, - means for controlling the voltage of the power source in order to bring the voltage of the power source to a second voltage value which is equal to the first voltage value plus the determined voltage step.

IPC 8 full level

G05F 1/67 (2006.01)

CPC (source: EP)

G05F 1/67 (2013.01)

Citation (search report)

  • [Y] EP 0762597 A2 19970312 - CANON KK [JP]
  • [XY] FANGRUI LIU ET AL: "A Variable Step Size INC MPPT Method for PV Systems", IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, IEEE SERVICE CENTER, PISCATAWAY, NJ, USA, vol. 55, no. 7, 1 July 2008 (2008-07-01), pages 2622 - 2628, XP011225538, ISSN: 0278-0046, DOI: 10.1109/TIE.2008.920550
  • [XY] FANG LUO ET AL: "A Variable Step Maximum Power Point Tracking Method Using Differential Equation Solution", INDUSTRIAL ELECTRONICS AND APPLICATIONS, 2007. ICIEA 2007. 2ND IEEE CO NFERENCE ON, IEEE, PI, 1 May 2007 (2007-05-01), pages 2259 - 2263, XP031137749, ISBN: 978-1-4244-0736-1
  • [XY] JIANPO ZHANG ET AL: "A maximum power point tracking algorithm based on gradient descent method", POWER&ENERGY SOCIETY GENERAL MEETING, 2009. PES '09. IEEE, IEEE, PISCATAWAY, NJ, USA, 26 July 2009 (2009-07-26), pages 1 - 5, XP031538720, ISBN: 978-1-4244-4241-6
  • [XI] JAE HO LEE ET AL: "Advanced Incremental Conductance MPPT Algorithm with a Variable Step Size", POWER ELECTRONICS AND MOTION CONTROL CONFERENCE, 2006. EPE-PEMC 2006. 12TH INTERNATIONAL, IEEE, PISCATAWAY, NJ, USA, 30 August 2006 (2006-08-30), pages 603 - 607, XP031421684, ISBN: 978-1-4244-0121-5
  • [Y] JAYAWARDENA A V ET AL: "Maximum power tracking for PVs with improved tracking accuracy at irradiance transients", SUSTAINABLE ENERGY TECHNOLOGIES (ICSET), 2010 IEEE INTERNATIONAL CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, 6 December 2010 (2010-12-06), pages 1 - 4, XP031846956, ISBN: 978-1-4244-7192-8

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2722725 A1 20140423; EP 2722725 B1 20170524; JP 2014081919 A 20140508; JP 6198504 B2 20170920

DOCDB simple family (application)

EP 12188687 A 20121016; JP 2013155545 A 20130726