FR3050548B1 - MANAGEMENT OF A PHOTOVOLTAIC POWER SYSTEM BY A POWER CONDITIONING UNIT (PCU) CALCULATING THE MAXIMUM POWER POINT (MPPC) - Google Patents

MANAGEMENT OF A PHOTOVOLTAIC POWER SYSTEM BY A POWER CONDITIONING UNIT (PCU) CALCULATING THE MAXIMUM POWER POINT (MPPC) Download PDF

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Publication number
FR3050548B1
FR3050548B1 FR1670189A FR1670189A FR3050548B1 FR 3050548 B1 FR3050548 B1 FR 3050548B1 FR 1670189 A FR1670189 A FR 1670189A FR 1670189 A FR1670189 A FR 1670189A FR 3050548 B1 FR3050548 B1 FR 3050548B1
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France
Prior art keywords
voltage
power
module
panel
mpp
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Expired - Fee Related
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FR1670189A
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French (fr)
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FR3050548A1 (en
Inventor
Antoine Capel
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Individual
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Individual
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Priority to FR1670189A priority Critical patent/FR3050548B1/en
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Publication of FR3050548B1 publication Critical patent/FR3050548B1/en
Expired - Fee Related legal-status Critical Current
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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
    • 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
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/613—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in parallel with the load as final control devices

Abstract

La présente invention concerne une unité de conditionnement de puissance (1) qui gère un système de puissance constitué de n panneaux solaires identiques (2), une batterie (3) et un réseau d'utilisation (4). Cette unité est modulaire représentée en fig1 est composé de 2 types de régulateurs de puissance : un shunt non dissipatif (5) formé de n shunts, un par panneau, un chargeur-déchargeur de batterie bidirectionnel (6), c'est-à-dire un régulateur capable, à la fois de charger ou de décharger une batterie et un module de calcul (7). Ce module est capable de calculer le point de puissance maximal des panneaux solaires, appelé MPP, à l'ai de d'informations de courants et de tension, et de générer une tension de référence, image de la tension MPP, et de la transmettre aux régulateurs de puissance (8) pour qu'ils régulent la tension VMPP (9) qui est distribuée au réseau d'utilisation. Le calcul de la tension MPP par le module MPPC-uP (7) est le résultat d'un processus mathématique, résolvant un système de 3 équations à 3 inconnues. Ce calcul est rapide, quelques microsecondes, précis, et la tension MPP ne varie pas si les conditions d'illumination ne changent pas. Il permet un suivi constant de l'évolution des conditions d'exposition au soleil. Ce calcul implique de connaître 3 paramètres. L'un d'entre eux, le courant de court-circuit d'un panneau est immédiat : c'est le courant que fourni le panneau qui est courtcircuité par un module shunt, ici le module 1(10). La connaissance des 2 autres paramètres nécessite la mesure des coordonnées, courant et tension, d'un point M de la caractéristique électrique d'un panneau, en fonctionnement nominal et de 2 points en régime forcé (très forte puissance qui fait intervenir le déchargeur de batterie).The present invention relates to a power conditioning unit (1) which manages a power system consisting of n identical solar panels (2), a battery (3) and a user network (4). This modular unit shown in fig1 is composed of 2 types of power regulators: a non-dissipative shunt (5) formed of n shunts, one per panel, a bidirectional battery charger-discharger (6), that is to say ie a regulator capable of both charging or discharging a battery and a computing module (7). This module is able to calculate the maximum power point of solar panels, called MPP, using information of currents and voltage, and generate a reference voltage, image of the MPP voltage, and transmit it to the power regulators (8) so that they regulate the voltage VMPP (9) which is distributed to the use network. The calculation of the MPP voltage by the MPPC-uP module (7) is the result of a mathematical process, solving a system of 3 equations with 3 unknowns. This calculation is fast, a few microseconds, precise, and the MPP voltage does not vary if the illumination conditions do not change. It allows constant monitoring of changes in the conditions of exposure to the sun. This calculation implies knowing 3 parameters. One of them, the short-circuit current of a panel is immediate: it is the current supplied by the panel which is short-circuited by a shunt module, here module 1 (10). Knowledge of the 2 other parameters requires the measurement of the coordinates, current and voltage, of a point M of the electrical characteristic of a panel, in nominal operation and of 2 points in forced mode (very high power which involves the unloader of drums).

FR1670189A 2016-04-22 2016-04-22 MANAGEMENT OF A PHOTOVOLTAIC POWER SYSTEM BY A POWER CONDITIONING UNIT (PCU) CALCULATING THE MAXIMUM POWER POINT (MPPC) Expired - Fee Related FR3050548B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1670189A FR3050548B1 (en) 2016-04-22 2016-04-22 MANAGEMENT OF A PHOTOVOLTAIC POWER SYSTEM BY A POWER CONDITIONING UNIT (PCU) CALCULATING THE MAXIMUM POWER POINT (MPPC)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1670189A FR3050548B1 (en) 2016-04-22 2016-04-22 MANAGEMENT OF A PHOTOVOLTAIC POWER SYSTEM BY A POWER CONDITIONING UNIT (PCU) CALCULATING THE MAXIMUM POWER POINT (MPPC)
FR1670189 2016-04-22

Publications (2)

Publication Number Publication Date
FR3050548A1 FR3050548A1 (en) 2017-10-27
FR3050548B1 true FR3050548B1 (en) 2018-10-19

Family

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Application Number Title Priority Date Filing Date
FR1670189A Expired - Fee Related FR3050548B1 (en) 2016-04-22 2016-04-22 MANAGEMENT OF A PHOTOVOLTAIC POWER SYSTEM BY A POWER CONDITIONING UNIT (PCU) CALCULATING THE MAXIMUM POWER POINT (MPPC)

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FR (1) FR3050548B1 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010130273A1 (en) * 2009-05-12 2010-11-18 Mppc Technology Device to extract maximum power from a solar array and process to carry it out

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Publication number Publication date
FR3050548A1 (en) 2017-10-27

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