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公开(公告)号：EP3782278B1
公开(公告)日：2024-05-29
申请号：EP18915518.7
申请日：2018-04-19
CPC分类号： H02M5/4585 , H02M1/0077 , H02M1/15 , H02M7/49 , H02M7/2195
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公开(公告)号：EP4383551A1
公开(公告)日：2024-06-12
申请号：EP23214212.5
申请日：2023-12-05
IPC分类号： H02M7/5387 , H02M1/00 , G05F1/67 , H02S40/32
CPC分类号： H02M7/5387 , H02M1/0077 , H02M1/0012 , H02J2300/2620200101 , G05F1/67 , H02S40/32 , H02M7/49 , H02J3/381
摘要： Ce dispositif électronique de pilotage pilote un convertisseur d'énergie délivrant une tension totale de sortie et/ou un courant de sortie à partir d'une pluralité de tensions continues élémentaires d'entrée, chacune étant issue d'une source d'énergie respective.
Le convertisseur comprend plusieurs modules de conversion, chacun recevant une tension continue élémentaire d'entrée d'une source respective et délivrant une tension élémentaire de sortie ; les modules de conversion étant connectés en série par leurs sorties et la tension totale de sortie étant égale à la somme des tensions élémentaires de sortie ; chaque module de conversion comportant plusieurs interrupteurs pour convertir la tension continue élémentaire d'entrée en la tension élémentaire de sortie respectives.
Le dispositif de pilotage comprend plusieurs contrôleurs élémentaires et un contrôleur principal connecté aux contrôleurs élémentaires, chaque contrôleur élémentaire étant associé à un module de conversion respectif et commandant les interrupteurs dudit module.
Le contrôleur principal effectue une régulation d'une grandeur de sortie du convertisseur en envoyant des ordres de commande aux contrôleurs élémentaires, la régulation étant effectuée en fonction d'ensembles de grandeur(s) élémentaire(s) associés chacun à un module de conversion respectif.
Chaque contrôleur élémentaire mesure régulièrement des valeurs dudit ensemble de grandeur(s) pour le module de conversion associé, puis les transmet au contrôleur principal, ledit ensemble de grandeur(s) comportant la tension continue élémentaire d'entrée.
Le contrôleur principal comporte un premier estimateur calculant, pour chaque module de conversion, une valeur estimée de la tension continue élémentaire d'entrée à partir d'une valeur précédemment mesurée de la tension continue élémentaire d'entrée.-
公开(公告)号：EP4325705A3
公开(公告)日：2024-05-15
申请号：EP24150636.9
申请日：2019-06-14
CPC分类号： H02M1/4216 , H02M1/12 , H02M7/487 , H02M7/217 , Y02B70/10 , H02M1/0048 , H02M1/0054 , H02M1/0077 , H02M1/007
摘要： A method for operating a power converter is enclosed. The method includes operating the power converter (10) in a reduced switching mode. The power converter includes three input nodes (A, B, C) each configured to receive a respective one of three input voltages (V1, V2, V2) two DC link nodes (X, Z) configured to provide a DC link voltage (V4), and a midpoint (Y) coupled to each of the two DC link nodes (X, Z); three inductors (L1, L2, L3) each connected to a respective one of the three input nodes (A, B, C); and a rectifier bridge (1) comprising three bridge legs (11, 12, 13) each coupled to a respective one of the three inputs (A, B, C) through a respective one of the three inductors (L1, L2, L3) and connected to the respective one of the three inductors (L1, L2, L3) at a respective switch node (A', B', C'), wherein each of the three bridge legs (11, 12, 13) is connected to the two DC link nodes (X, Z) and the midpoint (Y), and comprises at least one electronic switch (Q1, Q2, Q3). Operating the power converter in the reduced switching mode includes deactivating at least one of the three bridge legs (11, 12, 13) for a predefined time period.
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公开(公告)号：EP4358355A1
公开(公告)日：2024-04-24
申请号：EP23200851.6
申请日：2023-09-29
发明人： Zhang, Tengshen , Zhang, Jinfa , Zhong, Linfeng , Wang, Changyong , Wang, Yafeng
CPC分类号： Y02T10/70 , H02J7/0029 , H02J7/345 , H02J2207/2020200101 , H02M3/01 , H02M3/33573 , H02M3/33584 , H02M1/0058 , H02M1/0045 , H02M1/0077
摘要： An energy storage module (1, 1a, 1b, 1c, 1d, 1e) includes a bus connection part (2), a battery pack (3), a capacitor (Cb) and a series compensation DC conversion device (4). A first conduction terminal (41) of the series compensation DC conversion device (4) is electrically connected with a positive bus connection terminal (21) and a negative bus connection terminal (22) of the bus connection part (2), or the first conduction terminal (41) is connected with a battery positive terminal (31) and a battery negative terminal (32) of the battery pack. A second conduction terminal (42) of the series compensation DC conversion device (4) is electrically connected with two terminals of the capacitor (Cb). A four-quadrant DC/DC converter (44, 44a) of the series compensation DC conversion device (4) controls the capacitor (Cb) to generate a compensation voltage (Vcb) to compensate a voltage between the two terminals of the battery pack, or the four-quadrant DC/DC converter (44, 44a) adjusts a current flowing through the battery pack to a set value.
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公开(公告)号：EP4054067B1
公开(公告)日：2024-09-25
申请号：EP19954287.9
申请日：2019-11-29
IPC分类号： H02M1/00
CPC分类号： H02M1/0077 , H02M1/0074
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公开(公告)号：EP4430644A1
公开(公告)日：2024-09-18
申请号：EP22757892.9
申请日：2022-07-26
申请人： Hitachi Energy Ltd
发明人： WEDIN, Erik Carl , PYROG, Semen , LYSELL, Erik
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公开(公告)号：EP4364282A1
公开(公告)日：2024-05-08
申请号：EP22741466.1
申请日：2022-06-28
申请人： Lightyear IPCo B.V.
CPC分类号： H02M3/33584 , H02M3/33573 , H02M3/33571 , H02M3/158 , H02M3/1582 , H02M1/0077 , B60L8/003 , B60L50/60 , H02J7/35 , H02J2207/2020200101 , B60L50/11
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8.发明公开
公开(公告)号：EP4439947A1
公开(公告)日：2024-10-02
申请号：EP24166032.3
申请日：2024-03-25
发明人： Lin, Shan , Nong, Xingzhong , Zhao, Tao , Liao, Jing , Lu, Yun , Wang, Chunfang
IPC分类号： H02M1/00 , H02M1/32 , H02M3/00 , H02M3/335 , H02M7/483 , H02M7/487 , H02M7/49 , H02J3/01 , H02J3/12 , H02J3/38
CPC分类号： Y02E10/56 , H02M1/325 , H02M7/49 , H02M1/007 , H02M1/0077 , H02M3/01 , H02M3/33573 , H02M7/4837 , H02M7/487 , H02J3/381 , H02J2300/2420200101 , H02J3/01 , H02J3/12
摘要： The present invention discloses a control method for a cascaded H-bridge medium-voltage direct-mounted photovoltaic inverter, including the steps of: S1, determining two phases of a power grid where a short circuit occurs; S2, calculating an adaptive zero-sequence voltage of a phase A by means of an adaptive zero-sequence voltage compensation strategy, wherein the phase A refers to a phase of three-phase the power grid where no short circuit occurs; S3, compensating for the adaptive zero-sequence voltage, then calculating an amplitude of a modulation voltage of the phase A, and calculating the modulation voltage of the phase A based on the amplitude of the modulation voltage of the phase A; S4, expanding the modulation voltage of the phase A to symmetrical three-phase voltages based on the modulation voltage of the phase A; S5, calculating a harmonic zero-sequence voltage by means of a maximum-minimum harmonic zero-sequence voltage compensation strategy; and S6, acquiring three-phase modulation voltages based on the adaptive zero-sequence voltage and the harmonic zero-sequence voltage, to suppress active power backflow. The present invention can significantly reduce a region with the active power backflow, and is more applicable to conditions with higher voltage sag depth and lower system output power.
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公开(公告)号：EP4406085A1
公开(公告)日：2024-07-31
申请号：EP21798029.1
申请日：2021-10-21
CPC分类号： H02J3/381 , H02J2300/2620200101 , H02J2300/2020200101 , H02J3/38 , H02M1/0077 , H02M7/4807 , H02M7/4835 , H02M1/007 , Y02E10/56
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公开(公告)号：EP2208236B1
公开(公告)日：2024-06-19
申请号：EP08796302.1
申请日：2008-07-18
CPC分类号： Y10S136/293 , H02J2300/2620200101 , H02J3/381 , Y02P80/20 , H02M1/0077 , Y02E10/56
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