WO2015140372A1 - Procédé de détection automatique d'erreurs dans le fonctionnement de systèmes photovoltaïques centralisés et installation permettant la mise en oeuvre dudit procédé - Google Patents

Procédé de détection automatique d'erreurs dans le fonctionnement de systèmes photovoltaïques centralisés et installation permettant la mise en oeuvre dudit procédé Download PDF

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Publication number
WO2015140372A1
WO2015140372A1 PCT/ES2015/070161 ES2015070161W WO2015140372A1 WO 2015140372 A1 WO2015140372 A1 WO 2015140372A1 ES 2015070161 W ES2015070161 W ES 2015070161W WO 2015140372 A1 WO2015140372 A1 WO 2015140372A1
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WO
WIPO (PCT)
Prior art keywords
energy
photovoltaic
units
installation
centralized
Prior art date
Application number
PCT/ES2015/070161
Other languages
English (en)
Spanish (es)
Inventor
Rodrigo MORETÓN VILLAGRÁ
Eduardo Lorenzo Pigueiras
Luis Narvarte Fernandez
Jonathan Leloux
Original Assignee
Universidad Politecnica De Madrid
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Universidad Politecnica De Madrid filed Critical Universidad Politecnica De Madrid
Publication of WO2015140372A1 publication Critical patent/WO2015140372A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/32—Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
    • 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

Definitions

  • the present invention relates to a procedure / installation, for the automatic detection of failures in the operation of centralized photovoltaic systems, based on the analysis of their energy availability.
  • the procedure is based on the fact that from the records of the energy generated by each unit of production of the plant, and that is obtained from a recorder, the calculation of the relationship between the productivity of the different units is carried out , as well as the identification of failures and lack of stability in the temporal evolution of said relationship.
  • the invention falls within the technical sector corresponding to the generation of electrical energy and more specifically to the field of photovoltaic plants.
  • IEC 61724 Photovoltaic system performance monitoring. Guidelines for measurement, data Exchange and analysis.
  • patents US2012084027A1 are known, which presents a system and method for monitoring the operation of a photovoltaic system; EP 2019433 A1, which proposes a measurement system of the characteristic lV of photovoltaic modules; and US 201 1 133764 A1, DE 10201 1107365 A1 and EP 2587274 A1, which present analysis systems based on the measurement of the currents and voltages of a generator.
  • the first invention develops a monitoring system added to the photovoltaic plant and does not quantify the energy losses associated with malfunctions.
  • the invention solves the technical problem of detecting, in a precise and automatic way, the occurrence of failures in centralized photovoltaic systems, as well as of calculating the energy losses associated therewith.
  • the procedure proposed by the present invention detects the failures in the operation of each of the productive units in which a centralized photovoltaic system is divided by associating them with decreases in the stability of the productions of all the production units. This stability is directly related to the energy availability of each unit.
  • the particular composition of centralized photovoltaic systems allows the calculation of energy availability as the ratio between the actual energy produced by a system and that produced by said system in the absence of anomalies in its operation.
  • the particularity is that two photovoltaic systems in the same location, if free of anomalies, deliver energy at a similar rate.
  • the absence of anomalies is identified with the stability in their relative productivity in two different periods of time, as shown in the equation: where E is the energy produced, A and B two different periods of time and 1 and 2 indicate two photovoltaic units of the same plant.
  • Period A must be free of anomalies for both systems, to establish a reference in the relationship between productions.
  • Figure 1. Shows the configuration of a centralized photovoltaic system connected to the power grid.
  • Figure 2. Shows an example of the calculation of the stability of relative productions for 15 days in a centralized photovoltaic system consisting of 10 units. You can see the difference in some productions.
  • Figure 3. Shows the automatic detection of malfunctions applied to the case of Figure 2, as well as the quantification of lost energy.
  • Figure 1 shows the elements of a centralized photovoltaic system in which the present invention is applied, including a photovoltaic generator (1), an inverter (2), and an energy meter (3).
  • the photovoltaic generator (1) is formed by the series and parallel association of photovoltaic modules.
  • the inverter (2) converts the direct current generated by the photovoltaic generator (1) into alternating current and operates the latter at its maximum power point.
  • the counter (3) records the energy generated by the system.
  • An embodiment of the procedure to detect the failures in the production of a photovoltaic installation during a given period would contain the following steps:
  • Figure 2 shows an example of the calculation of the stability of relative productions for 15 days in a centralized photovoltaic system consisting of 10 units. One of the days has been taken as a reference period without failures. Stability losses can be clearly seen.
  • Figure 3 shows the detection of the failures for this example, as well as the quantification of the energy lost for each case.

Landscapes

  • Photovoltaic Devices (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

La présente invention concerne un procédé basé sur la réalisation de l'analyse de la disponibilité énergétique du système photovoltaïque centralisé composé de plusieurs unités de production comparables qui comprennent un générateur photovoltaïque (1), un inverseur (2) et un compteur d'énergie (3), auxquels s'ajoute un enregistreur (4) permettant d'obtenir les données de l'énergie générée par le compteur d'énergie (3). Le procédé consiste à calculer le rapport entre les productivités des différentes unités de production comparables et à identifier les erreurs et le manque de stabilité sur l'évolution dans le temps de ce rapport.
PCT/ES2015/070161 2014-03-17 2015-03-06 Procédé de détection automatique d'erreurs dans le fonctionnement de systèmes photovoltaïques centralisés et installation permettant la mise en oeuvre dudit procédé WO2015140372A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201430361A ES2481091A1 (es) 2014-03-17 2014-03-17 Procedimiento para la detección automática de fallos en el funcionamiento de sistemas fotovoltaicos centralizados e instalación para la puesta en practica del mismo
ESP201430361 2014-03-17

Publications (1)

Publication Number Publication Date
WO2015140372A1 true WO2015140372A1 (fr) 2015-09-24

Family

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Application Number Title Priority Date Filing Date
PCT/ES2015/070161 WO2015140372A1 (fr) 2014-03-17 2015-03-06 Procédé de détection automatique d'erreurs dans le fonctionnement de systèmes photovoltaïques centralisés et installation permettant la mise en oeuvre dudit procédé

Country Status (2)

Country Link
ES (1) ES2481091A1 (fr)
WO (1) WO2015140372A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017093275A (ja) * 2015-11-10 2017-05-25 育雄 久保 太陽光発電装置の実績データーをベースとした劣化や異常検知システム
EP1654773B1 (fr) * 2003-08-14 2019-10-09 InterDigital CE Patent Holdings Panneau electroluminescent dote d'elements d'extraction de lumiere

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US20120197557A1 (en) * 2009-09-02 2012-08-02 Sma Solar Technology Ag String Failure Monitoring
JP2012186263A (ja) * 2011-03-04 2012-09-27 Daikin Ind Ltd 太陽光発電ユニットの診断装置、診断方法、及び太陽光発電システム
KR101299960B1 (ko) * 2013-07-22 2013-08-26 쏠라이앤에스(주) 계통 연계형 태양광발전 시스템

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JP5162737B2 (ja) * 2006-05-17 2013-03-13 英弘精機株式会社 太陽電池の特性評価装置
JP4673921B2 (ja) * 2009-05-01 2011-04-20 オーナンバ株式会社 太陽電池発電システムの異常検出装置及び方法
DE102011107365A1 (de) * 2011-06-29 2013-01-03 eSYZz UG (haftungsbeschränkt) Photovoltaik-Modul
DE102011085392B4 (de) * 2011-10-28 2014-05-28 Ims Connector Systems Gmbh Verfahren zur Überwachung von Photovoltaikmodulen
CN102608512B (zh) * 2012-04-11 2014-07-09 上海电力学院 在线检测太阳能光伏电站中光伏电池故障的方法
US20150303689A1 (en) * 2012-08-17 2015-10-22 Logios, Llc Systems and methods for power control and energy management

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120197557A1 (en) * 2009-09-02 2012-08-02 Sma Solar Technology Ag String Failure Monitoring
JP2012186263A (ja) * 2011-03-04 2012-09-27 Daikin Ind Ltd 太陽光発電ユニットの診断装置、診断方法、及び太陽光発電システム
KR101299960B1 (ko) * 2013-07-22 2013-08-26 쏠라이앤에스(주) 계통 연계형 태양광발전 시스템

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M. ALONSO-ABELLA ET AL.: "Lectura of contadores of energía in centrales fotovoltaicas. Implementación del protocolo IEC 870-5-102 in sistemas of monitorización", CIEMAT, PUBLICADO IN THE REVISTA ERA SOLAR, vol. 156, 157, 31 December 2010 (2010-12-31), pages 18 - 32, 34-46, 70-85 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1654773B1 (fr) * 2003-08-14 2019-10-09 InterDigital CE Patent Holdings Panneau electroluminescent dote d'elements d'extraction de lumiere
JP2017093275A (ja) * 2015-11-10 2017-05-25 育雄 久保 太陽光発電装置の実績データーをベースとした劣化や異常検知システム

Also Published As

Publication number Publication date
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