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1. WO2020115275 - METHODS OF CONTROLLING AN ELECTRICAL SYSTEM TO EXTINGUISH AN ELECTRIC ARC, AND ELECTRICAL SYSTEMS

Publication Number WO/2020/115275
Publication Date 11.06.2020
International Application No. PCT/EP2019/083985
International Filing Date 06.12.2019
IPC
H02H 1/00 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
1Details of emergency protective circuit arrangements
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 7/122 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
10for converters; for rectifiers
12for static converters or rectifiers
122for inverters, i.e. dc/ac converters
CPC
H02H 1/0015
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
1Details of emergency protective circuit arrangements
0007concerning the detecting means
0015Using arc detectors
H02H 3/023
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
021concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order
023by short-circuiting
H02H 7/1222
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
10for converters; for rectifiers
12for static converters or rectifiers
122for inverters, i.e. dc/ac converters
1222responsive to abnormalities in the input circuit, e.g. transients in the DC input
Applicants
  • GE ENERGY POWER CONVERSION TECHNOLOGY LTD [GB]/[GB]
Inventors
  • GLOES, Hendrik
  • GESKE, Martin
  • BRÜCKNER, Thomas
Agents
  • SERJEANTS LLP
Priority Data
18211124.507.12.2018EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHODS OF CONTROLLING AN ELECTRICAL SYSTEM TO EXTINGUISH AN ELECTRIC ARC, AND ELECTRICAL SYSTEMS
(FR) PROCÉDÉS DE COMMANDE D'UN SYSTÈME ÉLECTRIQUE POUR ÉTEINDRE UN ARC ÉLECTRIQUE, ET SYSTÈMES ÉLECTRIQUES
Abstract
(EN)
An electrical system forming part of a solar power plant (1) is described. The electrical system includes a plurality of photovoltaic (PV) panels (8), a power converter (2), and a controller (54). In response to a detected electric arc on the DC side of the power converter (2), the controller (54) is configured to enable a short circuit state of the power converter by controlling semiconductor switches of the power converter (e.g., turning on some or all of the semiconductor switches) to create a short circuit between DC input terminals (4) of the power converter. The short circuit path though the power converter (2) will extinguish the detected electric arc in the connected DC circuit (10).
(FR)
L'invention concerne un système électrique faisant partie d'une centrale solaire (1). Le système électrique comprend une pluralité de panneaux photovoltaïques (PV) (8), un convertisseur de puissance (2) et un dispositif de commande (54). En réponse à un arc électrique détecté du côté CC du convertisseur de puissance (2), le dispositif de commande (54) est conçu pour permettre un état de court-circuit du convertisseur de puissance par commande de commutateurs à semi-conducteur du convertisseur de puissance (par exemple, allumer certains ou tous les commutateurs à semi-conducteur) pour créer un court-circuit entre des bornes d'entrée en courant continu (4) du convertisseur de puissance. Le trajet de court-circuit à travers le convertisseur de puissance (2) va éteindre l'arc électrique détecté dans le circuit CC connecté (10).
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Latest bibliographic data on file with the International Bureau