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1. WO2020096007 - POWER CONVERSION DEVICE, PUMPING DEVICE, CONTROL METHOD, DIAGNOSTIC DEVICE, AND DIAGNOSIS METHOD

Publication Number WO/2020/096007
Publication Date 14.05.2020
International Application No. PCT/JP2019/043723
International Filing Date 07.11.2019
IPC
H02M 1/00 2007.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
1Details of apparatus for conversion
H02M 7/48 2007.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42Conversion of dc power input into ac power output without possibility of reversal
44by static converters
48using discharge tubes with control electrode or semiconductor devices with control electrode
H02P 27/08 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
27Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
04using variable-frequency supply voltage, e.g. inverter or converter supply voltage
06using dc to ac converters or inverters
08with pulse width modulation
H02P 29/024 2016.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
29Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
02Providing protection against overload without automatic interruption of supply
024Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
Applicants
  • 株式会社安川電機 KABUSHIKI KAISHA YASKAWA DENKI [JP]/[JP]
Inventors
  • 池 英昭 IKE Hideaki
Agents
  • 長谷川 芳樹 HASEGAWA Yoshiki
  • 石坂 泰紀 ISHIZAKA Yasunori
  • 松尾 茂樹 MATSUO Shigeki
Priority Data
PCT/JP2018/04171909.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) POWER CONVERSION DEVICE, PUMPING DEVICE, CONTROL METHOD, DIAGNOSTIC DEVICE, AND DIAGNOSIS METHOD
(FR) DISPOSITIF DE CONVERSION DE PUISSANCE, DISPOSITIF DE POMPAGE, PROCÉDÉ DE COMMANDE, DISPOSITIF DE DIAGNOSTIC ET PROCÉDÉ DE DIAGNOSTIC
(JA) 電力変換装置、圧送装置、制御方法、診断装置及び診断方法
Abstract
(EN)
This power conversion device 100 is provided with: a power conversion unit 111 that supplies power to a pumping device 1; a data acquisition unit 121 that acquires speed data corresponding to the driving speed of the pumping device 1 and force data corresponding to the driving force of the pumping device 1; a threshold setting unit 125 that sets a threshold for an amplitude index value corresponding to the amplitude of a vibration component of the force data; and an abnormality detection unit 126 that detects abnormality in an object to be driven in response to the amplitude index value surpassing the threshold. The threshold setting unit 125 increases the threshold as the speed data increases.
(FR)
Ce dispositif de conversion de puissance (100) comprend : une unité de conversion de puissance (11) qui fournit de l'énergie à un dispositif de pompage (1); une unité d'acquisition de données (121) qui acquiert des données de vitesse correspondant à la vitesse d'entraînement du dispositif de pompage (1) et des données de force correspondant à la force d'entraînement du dispositif de pompage (1); une unité de définition de seuil (125) qui définit un seuil pour une valeur d'indice d'amplitude correspondant à l'amplitude d'une composante de vibration des données de force; et une unité de détection d'anomalie (126) qui détecte une anomalie dans un objet à entraîner en réponse à la valeur d'indice d'amplitude dépassant le seuil. L'unité de définition de seuil (125) augmente le seuil lorsque les données de vitesse augmentent.
(JA)
電力変換装置100は、圧送装置1に電力を供給する電力変換部111と、圧送装置1の駆動速度に対応する速度データと、圧送装置1の駆動力に対応する力データとを取得するデータ取得部121と、力データの振動成分の振幅に対応する振幅指標値の閾値を設定する閾値設定部125と、振幅指標値が閾値を超えるのに応じて駆動対象の異常を検出する異常検出部126と、を備え、閾値設定部125は、速度データが大きくなるにつれて閾値を大きくする。
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