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1. WO2020208812 - SHORT CIRCUIT DETECTION DEVICE AND SHORT CIRCUIT DETECTION METHOD

Publication Number WO/2020/208812
Publication Date 15.10.2020
International Application No. PCT/JP2019/015984
International Filing Date 12.04.2019
IPC
G01R 31/34 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
34Testing dynamo-electric machines
G01R 31/02 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
02Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection
H02K 11/20 2016.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
11Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
20for measuring, monitoring, testing, protecting or switching
H02K 19/36 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
19Synchronous motors or generators
16Synchronous generators
36Structural association of synchronous generators with auxiliary electric devices influencing the characteristic of the generator or controlling the generator, e.g. with impedances or switches
Applicants
  • 三菱電機株式会社 MITSUBISHI ELECTRIC CORPORATION [JP]/[JP]
Inventors
  • 滝澤 勇二 TAKIZAWA, Yuji
  • 米谷 晴之 KOMETANI, Haruyuki
  • 元吉 研太 MOTOYOSHI, Kenta
  • 山本 篤史 YAMAMOTO, Atsushi
  • 前田 進 MAEDA, Susumu
  • 榁木 伸明 MUROKI, Nobuaki
Agents
  • 曾我 道治 SOGA, Michiharu
  • 梶並 順 KAJINAMI, Jun
  • 上田 俊一 UEDA, Shunichi
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) SHORT CIRCUIT DETECTION DEVICE AND SHORT CIRCUIT DETECTION METHOD
(FR) DISPOSITIF DE DÉTECTION DE COURT-CIRCUIT ET PROCÉDÉ DE DÉTECTION DE COURT-CIRCUIT
(JA) 短絡検知装置および短絡検知方法
Abstract
(EN)
A short circuit detection device comprising: a signal acquisition unit that acquires a detection signal according to a magnetic flux from a magnetic flux detector that detects a magnetic flux generated in the air gap between a rotor and a stator of a rotating electrical machine; a signal processing unit that performs filter processing on the detection signal acquired by the signal acquisition unit and removes at least one component among the odd-order components included in the detection signal, and that generates a filtered signal which is the detection signal that has been subjected to the filter processing; and a short circuit detection unit that uses the filtered signal generated by the signal processing unit to detect the short circuiting of a field winding.
(FR)
L'invention concerne un dispositif de détection de court-circuit comprenant : une unité d'acquisition de signal qui acquiert un signal de détection en fonction d'un flux magnétique provenant d'un détecteur de flux magnétique qui détecte un flux magnétique généré dans l'entrefer entre un rotor et un stator d'une machine électrique rotative ; une unité de traitement de signal qui effectue un traitement de filtre sur le signal de détection acquis par l'unité d'acquisition de signal et élimine au moins une composante parmi les composantes d'ordre impair compris dans le signal de détection, et qui génère un signal filtré constituant le signal de détection soumis au traitement de filtre ; et une unité de détection de court-circuit qui utilise le signal filtré généré par l'unité de traitement de signal pour détecter le court-circuit d'un enroulement de champ.
(JA)
短絡検知装置は、回転電機の回転子と固定子との間の空隙に発生する磁束を検知する磁束検知器から磁束に応じた検知信号を取得する信号取得部と、信号取得部によって取得される検知信号に対して、検知信号に含まれる奇数次成分のうちの少なくとも1つの成分を除去するフィルタ処理を施し、フィルタ処理後の検知信号であるフィルタ信号を生成する信号処理部と、信号処理部によって生成されるフィルタ信号を用いて、界磁巻線の短絡を検知する短絡検知部とを備えて構成されている。
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