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    PROCÉDÉ DE CARACTÉRISATION ÉLECTRIQUE D'UN MATÉRIAU ABSORBEUR SOUS ILLUMINATION VARIABLE
    4.
    发明公开
    PROCÉDÉ DE CARACTÉRISATION ÉLECTRIQUE D'UN MATÉRIAU ABSORBEUR SOUS ILLUMINATION VARIABLE 审中-实审

    公开(公告)号：EP4391365A1

    公开(公告)日：2024-06-26

    申请号：EP23214492.3

    申请日：2023-12-06

    申请人： Commissariat à l'énergie atomique et aux énergies alternatives

    发明人： BONINO, Olivier ,  FAVRE, Wilfried ,  ZOGBO, Senami

    IPC分类号： H02S50/00

    CPC分类号： H02S50/00

    摘要： Procédé de caractérisation électrique d'un échantillon photovoltaïque (100) comprenant une couche de matériau absorbeur (112) et N paires d'électrodes adjacentes (108.1 - 108.4), comprenant :
    a) définition ou calcul d'une valeur cible Rshcible de résistance de couche de la couche absorbeuse ;
    b) pour chaque couple de paires d'électrodes adjacentes présentant des distances inter-électrodes di et di+1 différentes, détermination d'une valeur li,i+1 d'illumination la couche absorbeuse telle qu'une valeur RShi,i+1 de résistance de couche de la couche absorbeuse déterminée par interpolation linéaire entre des valeurs mesurées RpaireIi,i+1di et RpaireIi,i+1di+1 des résistances des paires d'électrodes soit la plus proche possible de la valeur cible Rshcible;
    c) détermination d'une valeur RSh de résistance de couche de la couche absorbeuse et d'une valeur Rc de résistance de contact d'une des électrodes de mesure par interpolation linéaire entre au moins trois des valeurs mesurées RpaireIi,i+1di et/ou RpaireIi,i+1di+1 pour les différentes valeurs Ii,i+1.

    DISCHARGE HANDLING SYSTEM
    6.
    发明公开
    DISCHARGE HANDLING SYSTEM 审中-实审

    公开(公告)号：EP4340172A1

    公开(公告)日：2024-03-20

    申请号：EP22807118.9

    申请日：2022-03-04

    申请人： Kaneka Corporation

    发明人： NISHIYAMA, Haruo

    IPC分类号： H02J13/00 ,  H02S50/00 ,  H01M8/04664 ,  H02J3/32 ,  H02J3/38 ,  G01R31/12 ,  G01R31/50 ,  G01R31/52

    摘要： The present invention provides a discharge handling system capable of appropriately handling occurrence of an arc discharge according to a situation. A discharge handling system includes: a power module; a power conversion device; and an arc discharge detection device, the arc discharge detection device including an arc discharge detector configured to detect occurrence of an arc discharge between the power module and the power conversion device, the arc discharge detection device monitoring the number of times of the arc discharge detected by the arc discharge detector and discharge time of the arc discharge every time a monitoring time elapses. The discharge handling system includes a determination unit configured to determine necessity of maintenance within a predetermined period on condition that any of conditions (1) to (3) below is satisfied: (1) the number of times of the arc discharge in the monitoring time is from 1 to a number-of-times threshold inclusive; (2) each of the discharge time of the arc discharge in the monitoring time is equal to first determination time or less; and (3) total of the discharge time of the arc discharge in the monitoring time is equal to second determination time or less.

    METHOD AND SYSTEM FOR LOCALLY CONTROLLING POWER DELIVERY ALONG A DISTRIBUTION FEEDER OF AN ELECTRICITY GRID
    8.
    发明公开
    METHOD AND SYSTEM FOR LOCALLY CONTROLLING POWER DELIVERY ALONG A DISTRIBUTION FEEDER OF AN ELECTRICITY GRID 审中-公开

    公开(公告)号：EP4266526A3

    公开(公告)日：2024-02-28

    申请号：EP23177552.9

    申请日：2018-06-05

    申请人： Power Management Holdings (U.S.), Inc.

    发明人： METCALFE, Malcolm S ,  NOWAK, Severin

    IPC分类号： H02J3/16 ,  H02S50/00 ,  H02J3/18

    摘要： A distribution feeder (11) of an electricity grid comprises a substation (23) and a plurality of nodes (17) with at least one controllable reactive power resource (16). A method is provided for locally controlling delivery of electrical power along the distribution feeder, wherein for a feeder segment in the distribution feeder the method comprises: obtaining an actual voltage magnitude at an upstream node and at a downstream node of the feeder segment, and a real power value at the upstream node; setting a target voltage phasor at the downstream node as a value when a power flow across the feeder segment is maintained, and when equal reactive power is injected at the upstream and downstream nodes that consumes all the reactive power in the feeder segment; and adjusting operation of the at least one controllable reactive power resource so that the actual voltage magnitude at the downstream node moves towards a target voltage magnitude of the target voltage phasor.

    SYSTEMS FOR DETECTING SHADING FOR SOLAR TRACKERS
    9.
    发明公开
    SYSTEMS FOR DETECTING SHADING FOR SOLAR TRACKERS 审中-公开

    公开(公告)号：EP4276710A3

    公开(公告)日：2024-02-21

    申请号：EP23199808.9

    申请日：2019-05-17

    申请人： Nextracker LLC

    发明人： Liu, Yang ,  LI, Chen

    IPC分类号： H02S20/32 ,  H02S40/34 ,  H02S40/36 ,  H01L31/05 ,  H02M3/00 ,  G06N20/00 ,  H02S50/00

    摘要： A solar tracker system including a tracker apparatus including a plurality of solar modules, each of the solar modules being spatially configured to face in a normal manner in an on sun position in an incident direction of electromagnetic radiation derived from the sun, wherein the solar modules include a plurality of PV strings, and a tracker controller. The tracker controller includes a processor, a memory, a power supply configured to provide power to the tracker controller, a plurality of power inputs configured to receive a plurality of currents from the plurality of PV strings, a current sensing unit configured to individually monitor the plurality of currents, a DC-DC power converter configured to receive the plurality of power inputs powered from the plurality of PV strings to supply power to the power supply, and a motor controller, wherein the tracker controller is configured to track the sun position.