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1. WO2020198561 - TRANSFORMER ISOLATION RESPONSE USING DIRECT CURRENT LINK

Publication Number WO/2020/198561
Publication Date 01.10.2020
International Application No. PCT/US2020/025151
International Filing Date 27.03.2020
IPC
H02H 7/04 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
04for transformers
H01H 83/00 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
83Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
H02H 1/04 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
1Details of emergency protective circuit arrangements
04Arrangements for preventing response to transient abnormal conditions, e.g. to lightning
H02H 3/00 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
H02H 3/02 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
02Details
H02H 7/045 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
04for transformers
045Differential protection of transformers
CPC
H02H 7/262
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
261involving signal transmission between at least two stations
262involving transmissions of switching or blocking orders
H02H 7/267
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
267for parallel lines and wires
H02H 7/268
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
268for dc systems
Applicants
  • ABB SCHWEIZ AG [CH]/[CH]
Inventors
  • YUAN, Chunming
  • YANG, Xiaobo
  • MAJUMDER, Ritwik
  • BERGGREN, Bertil
  • DIJKHUIZEN, Frans
  • PAN, Jiuping
Agents
  • CARLSON, Brian A.
Priority Data
16/366,28027.03.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TRANSFORMER ISOLATION RESPONSE USING DIRECT CURRENT LINK
(FR) RÉPONSE D'ISOLATION DE TRANSFORMATEUR À L'AIDE D'UNE LIAISON DE COURANT CONTINU
Abstract
(EN)
Unique systems, methods, techniques and apparatuses of a distribution system are disclosed. One exemplary embodiment is an alternating current (AC) distribution system including a first substation including a first transformer and a protective device; a first distribution network portion coupled to the first transformer; a second substation; a second distribution network portion; a DC interconnection system coupled between the first distribution network portion and the second distribution network portion; and a control system. The control system is structured to detect a fault in the first transformer or the transmission network, isolate the first distribution network from the fault, determine a set point of the DC interconnection system, and operate the DC interconnection system using the set point so as to transfer a portion of the MV AC from the second distribution network portion to the first distribution network portion.
(FR)
L'invention concerne des systèmes, des procédés, des techniques et des appareils uniques d'un système de distribution. Un mode de réalisation donné à titre d'exemple concerne un système de distribution de courant alternatif (CA) comprenant une première sous-station comprenant un premier transformateur et un dispositif de protection ; une première partie de réseau de distribution couplée au premier transformateur ; une seconde sous-station ; une seconde partie de réseau de distribution ; un système d'interconnexion CC couplé entre la première partie de réseau de distribution et la seconde partie de réseau de distribution ; et un système de commande. Le système de commande est structuré pour détecter un défaut dans le premier transformateur ou dans le réseau de transmission, pour isoler le premier réseau de distribution du défaut, pour déterminer un point de consigne du système d'interconnexion CC, et pour faire fonctionner le système d'interconnexion CC à l'aide du point défini de façon à transférer une partie du CA de MV de la seconde partie de réseau de distribution à la première partie de réseau de distribution.
Also published as
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