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1. WO2020112139 - ELECTRICAL SYSTEM REDUNDANT OVERVOLTAGE PROTECTION

Publication Number WO/2020/112139
Publication Date 04.06.2020
International Application No. PCT/US2018/063339
International Filing Date 30.11.2018
IPC
H02H 7/06 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
06for dynamo-electric generators; for synchronous capacitors
G01R 31/42 2006.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
40Testing power supplies
42AC power supplies
CPC
H02H 7/06
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
06for dynamo-electric generators; for synchronous capacitors
H02H 7/065
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
06for dynamo-electric generators; for synchronous capacitors
065against excitation faults
Applicants
  • INNOVATIVE POWER SOLUTIONS, LLC [US]/[US]
  • SORKIN, Lev [US]/[US]
  • SHIVTHARE, Priyanka D. [IN]/[US]
Inventors
  • SORKIN, Lev
  • SHIVTHARE, Priyanka D.
Agents
  • RUSSELL, Dean W.
  • SPARKMAN, William B.G.
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ELECTRICAL SYSTEM REDUNDANT OVERVOLTAGE PROTECTION
(FR) PROTECTION CONTRE LES SURTENSIONS REDONDANTES D'UN SYSTÈME ÉLECTRIQUE
Abstract
(EN)
Described is a method including monitoring a point of regulation voltage input to a generator control unit and monitoring a generator output voltage as a backup point of regulation voltage input. The method also includes detecting an overvoltage fault at the point of regulation voltage input, the backup point of regulation voltage input, or both. Additionally, the method includes opening a first solid-state switch (110) in response to detecting the overvoltage fault. Opening the first solid-state switch (110) prevents provision of an input signal (104) to a generator excitation field (102). Further, the method includes opening a generator excitation field relay (112) in response to detecting the overvoltage fault. Opening the excitation field relay (112) also prevents provision of the input signal (104) to the generator excitation field (102).
(FR)
L'invention concerne un procédé comprenant la surveillance d'un point d'entrée de tension de régulation vers une unité de commande de générateur et la surveillance d'une tension de sortie de générateur en tant que point de secours d'entrée de tension de régulation. Le procédé comprend également la détection d'un défaut de surtension au niveau du point d'entrée de tension de régulation, du point de secours de l'entrée de tension de régulation, ou des deux. De plus, le procédé comprend l'ouverture d'un premier commutateur à semi-conducteurs (110) en réponse à la détection du défaut de surtension. L'ouverture du premier commutateur à semi-conducteurs (110) empêche la fourniture d'un signal d'entrée (104) à un champ d'excitation de générateur (102). En outre, le procédé comprend l'ouverture d'un relais de champ d'excitation de générateur (112) en réponse à la détection du défaut de surtension. L'ouverture du relais de champ d'excitation (112) empêche également la fourniture du signal d'entrée (104) au champ d'excitation de générateur (102).
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