KR890013845A - Switching method and device of faulty motor - Google Patents

Switching method and device of faulty motor Download PDF

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Publication number
KR890013845A
KR890013845A KR1019890001724A KR890001724A KR890013845A KR 890013845 A KR890013845 A KR 890013845A KR 1019890001724 A KR1019890001724 A KR 1019890001724A KR 890001724 A KR890001724 A KR 890001724A KR 890013845 A KR890013845 A KR 890013845A
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South Korea
Prior art keywords
wire
motor
inverter
current
reference value
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KR1019890001724A
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Korean (ko)
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KR0132296B1 (en
Inventor
도시아끼 우와부
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이노구마 도끼히사
가부시끼가이샤 메이덴샤
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Publication of KR890013845A publication Critical patent/KR890013845A/en
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Publication of KR0132296B1 publication Critical patent/KR0132296B1/en

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/74Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more ac dynamo-electric motors

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Multiple Motors (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

내용 없음.No content.

Description

고장 전동기의 절환 방법 및 장치Switching method and device of faulty motor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 의해 제조된 고장 전동기 절환장치의 한 실시예를 도시한 개략적인 블록도.2 is a schematic block diagram showing one embodiment of a faulty motor switching device manufactured according to the present invention.

제3도는 제2도의 각각의 제어회로의 상세한 배열을 도시한 회로도.3 is a circuit diagram showing a detailed arrangement of each control circuit of FIG.

Claims (6)

전동기를 구동시키도록 조정가능한 여기 전력을 발생시키기 위해 각각의 전선을 통해최소한 3개의 전동기에 접속된 출력을 갖고 있는 인버터를 사용하기 위한 장치에 있어서, 대응 전선상의 감지된 전류 순시값을 각각 표시하는 센서 신호를 발생시키기 위해 각각의 전선 상의 전류를 민감한 센서수단, 센서신호가 기준값을 초과하는 경우 제어신호를발생시키기 위해 센서 신호를 기준값과 비교하기 위한 제어수단, 및 인버터로부터 대응 전동기를 절환시키기 위해 제어신호에 응답하는 스위칭 수단으로 구성되는 것을 특징으로 하는 장치.A device for using an inverter having an output connected to at least three motors through each wire to generate an excitation power that is adjustable to drive the motor, the apparatus comprising: displaying respective detected current instantaneous values on the corresponding wires respectively; Sensitive sensor means for generating current on each wire to generate a sensor signal, control means for comparing the sensor signal with a reference value for generating a control signal if the sensor signal exceeds a reference value, and for switching the corresponding motor from the inverter. And switching means responsive to the control signal. 제1항에 있어서, 각각의 전동기가 3개의 도선을 갖고 있는 전선을 통해 인버터에 접속된 3상 유도모터인 것을 특징으로 하는 장치.An apparatus according to claim 1, wherein each electric motor is a three-phase induction motor connected to the inverter via a wire having three conductors. 제2항에 있어서, 센서수단이 각각의 도선 상의 전류 순시값을 표시하는 전류 신호를 발생시키기 위해 각각의 도선에 결합된 전류 변환기를 포함하고 있는 것을 특징으로 하는 장치.3. An apparatus according to claim 2, wherein the sensor means comprises a current converter coupled to each conductor for generating a current signal indicative of the instantaneous current value on each conductor. 제3항에 있어서, 제어수단이 전류 신호를 DC전압으로 변환시키기 위한 수단, 변환된 DC전압을 기준값과 비교하기 위한 수단, 및 변환된 DE전압이 기준값을 초과하는 경우에 제어신호를 발생시키기 위한 수단을 포함하고 있는 것을 특징으로 하는 장치.4. The apparatus of claim 3, wherein the control means means for converting the current signal into a DC voltage, means for comparing the converted DC voltage with a reference value, and for generating a control signal when the converted DE voltage exceeds the reference value. A device comprising means. 제4항에 있어서, 스위칭 수단이 각각의 전선의 각각의 도선에 제공된 통상적인 폐쇄된 스위치, 및 대응 전선에 제공된 스위치를 개방시키기 위해 제어신호에 응답하는 수단을 포함하고 있는 것을 특징으로 하는 장치.5. An apparatus according to claim 4, wherein the switching means comprises a conventional closed switch provided on each conductor of each wire and means for responding to a control signal to open the switch provided on the corresponding wire. 전동기를 구동시키도록 조정가능한 여기 전력을 발생시키기 위해 각각의 전선을 통해 최소한 3개의 전동기에 접속된 출력을 갖고 있는 인버터를 사용하기 위한 방법에 있어서, 감지된 전류가 소정의 전동기의 단락을 표시하는 선정된 값을 초과하는 경우에 여기 전력을 인터럽트시키기 위해 인버터를 정지시키는 단계, 대응 전선상의 감지된 전류 순시값을 각각 표시하는 센서 신호를 발생시키기 위해 각각의 전선 상의 전류를 감지하는 단계, 센서 신호를 기준값과 비교하는 단계, 센서신호가 기준값을 초과하는 경우에는 인버터로부터 대응 전동기를 절환하는 단계, 및 다른 전동기에 전력을 재저장시키기 위해 인버터를 재기동하는 단계를 포함하고 있는 것을 특징으로 하는 방법.A method for using an inverter having an output connected to at least three motors through each wire to generate an excitation power that is adjustable to drive the motor, wherein the sensed current indicates a short circuit in a given motor. Stopping the inverter to interrupt the excitation power when a predetermined value is exceeded, sensing the current on each wire to generate a sensor signal each indicating a sensed current instantaneous value on the corresponding wire, the sensor signal Comparing the to the reference value, switching the corresponding motor from the inverter if the sensor signal exceeds the reference value, and restarting the inverter to restore power to the other motor. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890001724A 1988-02-16 1989-02-15 Detecting method and device of a faulted motor KR0132296B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63033033A JPH01209996A (en) 1988-02-16 1988-02-16 Separation of motor in trouble
JP63-33033 1988-02-16

Publications (2)

Publication Number Publication Date
KR890013845A true KR890013845A (en) 1989-09-26
KR0132296B1 KR0132296B1 (en) 1998-04-20

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Application Number Title Priority Date Filing Date
KR1019890001724A KR0132296B1 (en) 1988-02-16 1989-02-15 Detecting method and device of a faulted motor

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JP (1) JPH01209996A (en)
KR (1) KR0132296B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4792615B2 (en) * 1999-12-20 2011-10-12 Jfeスチール株式会社 Return control method of electric motor for conveyance of belt-like body conveyance equipment
JP4517501B2 (en) * 2000-11-30 2010-08-04 パナソニック株式会社 Washing and drying machine

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KR0132296B1 (en) 1998-04-20
JPH01209996A (en) 1989-08-23

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