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1. WO2020198565 - FEEDER LINE FAULT RESPONSE USING DIRECT CURRENT INTERCONNECTION SYSTEM

Publication Number WO/2020/198565
Publication Date 01.10.2020
International Application No. PCT/US2020/025157
International Filing Date 27.03.2020
IPC
H02H 3/10 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
08responsive to excess current
10additionally responsive to some other abnormal electrical conditions
H02H 3/38 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
38responsive to both voltage and current; responsive to phase angle between voltage and current
H02H 7/26 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
7Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
26Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occurred
H02H 3/44 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
44responsive to the rate of change of electrical quantities
CPC
H02H 3/10
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection
08responsive to excess current
10additionally responsive to some other abnormal electrical conditions
H02H 3/38
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection
38responsive to both voltage and current; responsive to phase angle between voltage and current
H02H 3/44
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection
44responsive to the rate of change of electrical quantities
H02H 7/26
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
7Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
26Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
Applicants
  • ABB SCHWEIZ AG [CH]/[CH]
Inventors
  • PAN, Jiuping
  • YUAN, Chunming
  • YANG, Xiaobo
  • BERGGREN, Bertil
  • DIJKHUIZEN, Frans
  • SCHAEFFER, David
  • MAJUMDER, Ritwik
Agents
  • CARLSON, Brian A.
Priority Data
16/366,11827.03.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FEEDER LINE FAULT RESPONSE USING DIRECT CURRENT INTERCONNECTION SYSTEM
(FR) RÉPONSE À UN DÉFAUT DE LIGNE D'ALIMENTATION À L'AIDE D'UN SYSTÈME D'INTERCONNEXION À COURANT CONTINU
Abstract
(EN)
The present disclosure relates generally to medium voltage alternating current (MV AC) distribution networks. Isolating a fault in a feeder line of an MV AC distribution network may cause a healthy portion of a feeder line to be disconnected from all power sources. Network control systems may be able to reconnect the healthy portion to another feeder line using controllable switches such as tie switching devices coupled to the end of each feeder line. Existing MV AC distribution networks suffer from a number of shortcomings and disadvantages. There remain unmet needs including increasing reconfigurability following feeder line fault response, preventing subsequent overloads after network reconfigurations, and reducing network downtime for healthy feeder line portions. For instance, conventional distribution networks do not receive power from multiple connected feeder lines after a fault response, risking an overload in a single newly connected feeder line and reducing power transfer ability. In view of these and other shortcomings in the art, there is a significant need for the unique apparatuses, methods, systems and techniques disclosed herein.
(FR)
La présente invention concerne de manière générale des réseaux de distribution de courant alternatif moyenne tension (MV AC). L'isolation d'un défaut dans une ligne d'alimentation d'un réseau de distribution MV AC peut amener une partie saine d'une ligne d'alimentation à être déconnectée de toutes les sources d'alimentation. Des systèmes de commande de réseau peuvent permettre de reconnecter la partie saine à une autre ligne d'alimentation à l'aide de commutateurs pouvant être commandés tels que des dispositifs de commutation de liaison couplés à l'extrémité de chaque ligne d'alimentation. Les réseaux de distribution MV AC existants présentent un certain nombre de défauts et d'inconvénients. Il reste des besoins non satisfaits, notamment l'augmentation de la reconfigurabilité à la suite d'une réponse à un défaut de ligne d'alimentation, la prévention de surcharges ultérieures après des reconfigurations de réseau et la réduction du temps d'arrêt de réseau pour des parties de ligne d'alimentation saines. Par exemple, les réseaux de distribution classiques ne reçoivent pas de puissance provenant de multiples lignes d'alimentation connectées après une réponse à un défaut, ce qui représente un risque de surcharge dans une ligne d'alimentation nouvellement connectée et réduit la capacité de transfert de puissance. Compte tenu de ces défauts et autres inconvénients de l'état de la technique, il existe un besoin important d'appareils, de procédés, de systèmes et de techniques uniques.
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