ES2446492B1 - METHOD AND DEVICE FOR MONITORING THE MAXIMUM POWER POINT IN PHOTOVOLTAIC SYSTEMS - Google Patents

METHOD AND DEVICE FOR MONITORING THE MAXIMUM POWER POINT IN PHOTOVOLTAIC SYSTEMS Download PDF

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Publication number
ES2446492B1
ES2446492B1 ES201231122A ES201231122A ES2446492B1 ES 2446492 B1 ES2446492 B1 ES 2446492B1 ES 201231122 A ES201231122 A ES 201231122A ES 201231122 A ES201231122 A ES 201231122A ES 2446492 B1 ES2446492 B1 ES 2446492B1
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sub
signal
resampling
dith
monitoring
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ES201231122A
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Spanish (es)
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ES2446492A1 (en
Inventor
Ramon LEYVA GRASA
Pedro GARCÉS MIGUEL
Hector ZAZO JIMENEZ
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Universitat Rovira i Virgili URV
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Universitat Rovira i Virgili URV
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Priority to ES201231122A priority Critical patent/ES2446492B1/en
Priority to PCT/ES2013/070496 priority patent/WO2014013116A1/en
Publication of ES2446492A1 publication Critical patent/ES2446492A1/en
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/66—Regulating electric power
    • G05F1/67—Regulating electric power to the maximum power available from a generator, e.g. from solar cell
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

Método y dispositivo para el seguimiento del punto de potencia máxima en sistemas fotovoltaicos.#Método y Circuito MPPT (31) para el seguimiento del MPP que usa una unidad de procesado de fase (PPU) que genera, con una frecuencia de remuestreo que puede ser elevada, una primera señal de remuestreo cos({oe}{sub,dith}t) y una segunda señal de remuestreo cos({oe}{sub,dith}t+{ph}) desfasada en un ángulo {ph} variable para obtener una señal de actuación (u) sobre un convertidor conmutado (12) de un sistema fotovoltaico (30). Además comprende un integrador digital (23) que genera una señal de salida (d) a partir una señal de filtro digital paso-alto (21) incorporado en el circuito MPPT (31) y la segunda señal de remuestreo cos({oe}{sub,dith}t+{ph}) que pasan por un multiplicador (22) a la entrada del integrador digital (23), y un sumador (24) que suma la señal de salida (d) del integrador digital (23) con la primera señal de remuestreo cos({oe}{sub,dith}t) para obtener la señal de actuación (u). La unidad (PPU) comprende un estimador (51) del desfase {ph}{sub,conv} en el convertidor conmutado (12), que a su vez comprende un estimador de la resistencia incremental R{sub,A} y un estimador (52) del desfase {ph}{sub,fd} el filtro digital paso-alto (21) que se suman para obtener el ángulo {ph}.Method and device for monitoring the maximum power point in photovoltaic systems. # MPPT Method and Circuit (31) for monitoring the MPP using a phase processing unit (PPU) that generates, with a resampling frequency that can be high, a first resampling signal cos ({oe} {sub, dith} t) and a second resampling signal cos ({oe} {sub, dith} t + {ph}) offset by a variable angle {ph} to obtain an actuation signal (u) on a switched converter (12) of a photovoltaic system (30). It also comprises a digital integrator (23) that generates an output signal (d) from a high-pass digital filter signal (21) incorporated in the MPPT circuit (31) and the second resampling signal cos ({oe} { sub, dith} t + {ph}) that pass through a multiplier (22) to the input of the digital integrator (23), and an adder (24) that adds the output signal (d) of the digital integrator (23) with the first resampling signal cos ({oe} {sub, dith} t) to obtain the actuation signal (u). The unit (PPU) comprises an estimator (51) of the offset {ph} {sub, conv} in the switched converter (12), which in turn comprises an incremental resistance estimator R {sub, A} and an estimator ( 52) of the offset {ph} {sub, fd} the high-pass digital filter (21) that are added to obtain the angle {ph}.

Description

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Claims (1)

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ES201231122A 2012-07-18 2012-07-18 METHOD AND DEVICE FOR MONITORING THE MAXIMUM POWER POINT IN PHOTOVOLTAIC SYSTEMS Active ES2446492B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES201231122A ES2446492B1 (en) 2012-07-18 2012-07-18 METHOD AND DEVICE FOR MONITORING THE MAXIMUM POWER POINT IN PHOTOVOLTAIC SYSTEMS
PCT/ES2013/070496 WO2014013116A1 (en) 2012-07-18 2013-07-10 Method and device for tracking the maximum power point in photovoltaic systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201231122A ES2446492B1 (en) 2012-07-18 2012-07-18 METHOD AND DEVICE FOR MONITORING THE MAXIMUM POWER POINT IN PHOTOVOLTAIC SYSTEMS

Publications (2)

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ES2446492A1 ES2446492A1 (en) 2014-03-07
ES2446492B1 true ES2446492B1 (en) 2014-12-29

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ES201231122A Active ES2446492B1 (en) 2012-07-18 2012-07-18 METHOD AND DEVICE FOR MONITORING THE MAXIMUM POWER POINT IN PHOTOVOLTAIC SYSTEMS

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ES (1) ES2446492B1 (en)
WO (1) WO2014013116A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106597095B (en) * 2016-12-22 2019-09-10 南京因泰莱电器股份有限公司 A kind of frequency-tracking implementation method of dual processors equal interval sampling
CN107707217B (en) * 2017-11-17 2021-06-08 西安电子科技大学 high-dB-gain broadband variable-transconductance six-bit active phase shifter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7319313B2 (en) * 2005-08-10 2008-01-15 Xantrex Technology, Inc. Photovoltaic DC-to-AC power converter and control method

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WO2014013116A1 (en) 2014-01-23
ES2446492A1 (en) 2014-03-07

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