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1. WO2020061547 - CONTROL OF DIRECT CURRENT CIRCUIT BREAKERS WITH SERIES SEMICONDUCTOR SWITCHES

Publication Number WO/2020/061547
Publication Date 26.03.2020
International Application No. PCT/US2019/052306
International Filing Date 21.09.2019
IPC
H03K 17/08 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
17Electronic switching or gating, i.e. not by contact-making and -breaking
08Modifications for protecting switching circuit against overcurrent or overvoltage
H03K 17/0812 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
17Electronic switching or gating, i.e. not by contact-making and -breaking
08Modifications for protecting switching circuit against overcurrent or overvoltage
081without feedback from the output circuit to the control circuit
0812by measures taken in the control circuit
H03K 17/56 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
17Electronic switching or gating, i.e. not by contact-making and -breaking
51characterised by the use of specified components
56by the use, as active elements, of semiconductor devices
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 3/08 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
CPC
H01H 2009/543
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
9Details of switching devices, not covered by groups H01H1/00 - H01H7/00
54Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
541Contacts shunted by semiconductor devices
542Contacts shunted by static switch means
543third parallel branch comprising an energy absorber, e.g. MOV, PTC, Zener
H01H 33/596
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
33High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
02Details
59Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
596for interrupting dc
H01H 9/542
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
9Details of switching devices, not covered by groups H01H1/00 - H01H7/00
54Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
541Contacts shunted by semiconductor devices
542Contacts shunted by static switch means
H01H 9/548
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
9Details of switching devices, not covered by groups H01H1/00 - H01H7/00
54Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
548Electromechanical and static switch connected in series
H02H 3/02
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 3/08
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
Applicants
  • NORTH CAROLINA STATE UNIVERSITY [US]/[US]
Inventors
  • PENG, Chang
  • HUSAIN, Iqbal
  • HUANG, Alex Q.
Agents
  • SCHOEN, Randy R.
Priority Data
62/734,43021.09.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CONTROL OF DIRECT CURRENT CIRCUIT BREAKERS WITH SERIES SEMICONDUCTOR SWITCHES
(FR) COMMANDE DE DISJONCTEURS À COURANT CONTINU AVEC COMMUTATEURS À SEMI-CONDUCTEURS EN SÉRIE
Abstract
(EN)
Various examples are provided related to direct current circuit breakers and their control methods. In one example, among others, a hybrid direct current circuit breaker (DCCB) includes an ultrafast mechanical switch (UFMS) connected in series with a commutating switch (CS) or auxiliary circuit breaker (ACB); a main breaker (MB) including a series of η semiconductor switching stages in parallel with the UFMS and CS or ACB; and control circuitry that can turn off individual switching stages in a defined order in response to opening contacts of the UFMS. The switching stages can be turned off based upon a dielectric strength across the contacts as they open. In another example, a method includes opening contacts of an UFMS connected in series with a CS or ACB; and turning off individual switching stages of a series of η semiconductor switching stages connected across the UFMS and the CS or ACB.
(FR)
Divers exemples concernent des disjoncteurs à courant continu et leurs procédés de commande. Dans un exemple, entre autres, un disjoncteur à courant continu hybride (DCC) comprend un commutateur mécanique ultrarapide (UFMS) connecté en série avec un commutateur de commutation (CS) ou un disjoncteur auxiliaire (ACB) ; un disjoncteur principal (MB) comprenant une série de η étages de commutation de semi-conducteurs en parallèle avec l'UFMS et le CS ou l'ACB ; et des circuits de commande qui peuvent mettre hors tension des étages de commutation individuels dans un ordre défini en réponse à des contacts d'ouverture de l'UFMS. Les étages de commutation peuvent être mis hors tension sur la base d'une force diélectrique à travers les contacts lorsqu'ils s'ouvrent. Dans un autre exemple, un procédé comprend l'ouverture de contacts d'un UFMS connecté en série avec un CS ou un ACB ; et la mise hors tension des étages de commutation individuels d'une série de η étages de commutation de semi-conducteurs connectés à travers l'UFMS et le CS ou l'ACB.
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