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公开(公告)号：EP4418486A1
公开(公告)日：2024-08-21
申请号：EP23157304.9
申请日：2023-02-17
CPC分类号： H02J3/388 , H02J2300/2020200101 , H02J13/00007 , H02J2310/1220200101
摘要： Verfahren zur Energieversorgung in einem Energieversorgungsnetz (1), welches mit einem übergeordneten Energieversorgungsnetz (4) verbindbar ist, wobei zumindest einer der Teilnehmer (6a) eine Energieversorgungseinrichtung (9) mit einem Wechselrichter (10a, 10b) aufweist:
i) Trennen des Energieversorgungsnetzes (1) von dem übergeordneten Energieversorgungsnetz (4);
ii) Trennen sämtlicher Teilnehmer (6a, 6b) von dem Energieversorgungsnetz (1);
iii) Bestimmen eines Master-Wechselrichters (10a) und eines Slave-Wechselrichters (10b);
iv) Verbinden der Teilnehmer (6a) mit Energieversorgungseinrichtungen (9) mit dem Energieversorgungsnetz (1);
v) Ausgeben einer Wechselspannung (U) durch den Master-Wechselrichter (10a) und den Slave-Wechselrichter (10b), wobei die Frequenz (f), Spannungshöhe (A) und Phasenlage (ϕ) durch den Master-Wechselrichter (10a) vorgegeben wird;
vi) Bestimmen der in dem Energieversorgungsnetz (1) zur Verfügung stehenden Gesamtenergie (Eges) und/oder der abrufbaren Gesamtleistung (Pges);
vii) Verbinden eines Teilnehmers (6b) ohne Energieversorgungseinrichtung (9) mit dem lokalen Energieversorgungsnetz (1) in Abhängigkeit der Gesamtenergie (Eges), der Gesamtleistung (Pges), der erwarteten Verbrauchsleistung (PE) und/oder des erwarteten Energiebedarfs (EE);
viii) Bedarfsweises Trennen von Teilnehmern (6a, 6b) von dem Energieversorgungsnetz (1), um die Netzstabilität zu gewährleisten.-
公开(公告)号：EP4416813A1
公开(公告)日：2024-08-21
申请号：EP22822404.4
申请日：2022-11-25
发明人： BAUER, Florian , HERMSDORF, Christian , WIESENMÜLLER, Wolfgang , ZABLOCKI, Jerzy , DUBSKY, Torsten , WICH, Thomas
CPC分类号： H02J3/14 , H02J3/381 , H02J3/388 , H02J2300/2020200101 , H02J2310/5820200101
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3.发明公开
公开(公告)号：EP4383506A3
公开(公告)日：2024-07-17
申请号：EP23307015.0
申请日：2023-11-21
发明人： XING, Jinlei
CPC分类号： H02J3/388 , H02J3/0012 , H02J13/00002
摘要： An apparatus for detecting an islanding state of a power generation device is disclosed. The apparatus includes a first acquisition unit for acquiring a first current amount at a substation; a second acquisition unit for acquiring a second voltage phasor at the power generation device; a processing unit connected with the first acquisition unit and the second acquisition unit, for determining the interconnection impedance between the power generation device and the substation according to the ratio of the variation of the second voltage phasor and the variation of the first current within the same time period, and determining that the power generation device is in an islanding state under the condition that the interconnection impedance meets a predetermined condition. Furthermore, a method for detecting an islanding state of a power generation device and a system for detecting the islanding state of the power generation device is disclosed.
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公开(公告)号：EP4357609A1
公开(公告)日：2024-04-24
申请号：EP22202687.4
申请日：2022-10-20
CPC分类号： F03D7/026 , F03D7/048 , H02J3/388 , H02J2310/1020200101 , F03D7/0292 , F03D80/50 , H02J2310/1820200101 , H02J2300/2820200101
摘要： It is described a method of operating plural wind turbines (2a,2b,2c) connected to a local grid (4) but isolated from any power providing utility grid (5), the method comprising: monitoring (6a,6b,6c) the wind turbines (2a,2b,2c) regarding at least one temporary stop requirement; selecting one or more of the wind turbines (2a,2b,2c) based on a closeness to the respective temporary stop requirement, in particular the lower the closeness the more urgent the temporary stop; entering, by at least one selected wind turbine (2a,2b) or by at least one non-selected wind turbine, a non-idle state thereby suppling power to the local grid.
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6.发明公开
公开(公告)号：EP4383506A2
公开(公告)日：2024-06-12
申请号：EP23307015.0
申请日：2023-11-21
发明人： XING, Jinlei
CPC分类号： H02J3/388 , H02J3/0012 , H02J13/00002
摘要： An apparatus for detecting an islanding state of a power generation device is disclosed. The apparatus includes a first acquisition unit for acquiring a first current amount at a substation; a second acquisition unit for acquiring a second voltage phasor at the power generation device; a processing unit connected with the first acquisition unit and the second acquisition unit, for determining the interconnection impedance between the power generation device and the substation according to the ratio of the variation of the second voltage phasor and the variation of the first current within the same time period, and determining that the power generation device is in an islanding state under the condition that the interconnection impedance meets a predetermined condition. Furthermore, a method for detecting an islanding state of a power generation device and a system for detecting the islanding state of the power generation device is disclosed.
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公开(公告)号：EP3869682B8
公开(公告)日：2024-06-12
申请号：EP20159044.5
申请日：2020-02-24
IPC分类号： H02M7/5395 , H02J3/38
CPC分类号： H02J3/388 , H02M7/5395 , H02J2310/1020200101 , Y04S20/12 , Y02B90/20
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公开(公告)号：EP4140007B1
公开(公告)日：2024-05-08
申请号：EP21785821.6
申请日：2021-09-27
CPC分类号： H02J3/381 , H02J3/388 , H02J3/32 , H02J7/35 , H02J2300/2020200101 , H02J2300/2420200101 , H02J2310/1020200101 , H02J2310/1220200101 , H01H3/52 , H01H19/46 , Y02E10/56
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公开(公告)号：EP3869682B1
公开(公告)日：2024-04-17
申请号：EP20159044.5
申请日：2020-02-24
IPC分类号： H02M7/5395 , H02J3/38
CPC分类号： H02J3/388 , H02M7/5395 , H02J2310/1020200101 , Y04S20/12 , Y02B90/20
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