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KR940008214A - How to restart the inverter - Google Patents

How to restart the inverter Download PDF

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Publication number
KR940008214A
KR940008214A KR1019920015837A KR920015837A KR940008214A KR 940008214 A KR940008214 A KR 940008214A KR 1019920015837 A KR1019920015837 A KR 1019920015837A KR 920015837 A KR920015837 A KR 920015837A KR 940008214 A KR940008214 A KR 940008214A
Authority
KR
South Korea
Prior art keywords
voltage
inverter
detecting
frequency
load current
Prior art date
Application number
KR1019920015837A
Other languages
Korean (ko)
Other versions
KR0156111B1 (en
Inventor
최기수
Original Assignee
성기설
금성계전 주식회사
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Publication date
Application filed by 성기설, 금성계전 주식회사 filed Critical 성기설
Priority to KR1019920015837A priority Critical patent/KR0156111B1/en
Publication of KR940008214A publication Critical patent/KR940008214A/en
Application granted granted Critical
Publication of KR0156111B1 publication Critical patent/KR0156111B1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS 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
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output

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

Abstract

본 발명은 인버터의 고장 발생시 자동으로 재시동하고자 할때 인버터 및 모타에 무리없는 기동 특성을 요구하는 인버터에 적당하도록 한 인버터의 이상 재시동 운전방법에 관한 것으로 이상 재시동 운전시 모타의 상태를 파악하여 재시동 운전을 하지 않으면 인버터가 다시 트립될 위험이 있기 때문에 모타의 속도를 센서를 사용하지 않고 간접적으로 속도를 파악함으로써 보다 원활한 운전이 이루어지게 할 것이다.The present invention relates to an abnormal restart operation method of the inverter that is suitable for an inverter requiring an unreasonable starting characteristic for the inverter and the motor when the inverter is to be restarted automatically in the event of a failure of the inverter. If you do not do this, the inverter may trip again. Therefore, the speed of the motor will be measured indirectly without using the sensor.

Description

인버터의 이상 재시동 운전방법How to restart the inverter

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

제2도는 본 발명의 이상 재시동 운전을 위한 블럭도.2 is a block diagram for an abnormal restart operation of the present invention.

제3도는 본 발명의 동작흐름도.3 is a flow chart of the present invention.

Claims (2)

순시 정전후 복전되었는가를 판단하는 단계(S1)와, 복전시 DC전압을 검출하는 단계(S2)와, 부족 전압 상태인가를 판단하는 단계(S3)와, 부족 전압이 아니면 DC전압을 출력하는 단계(S4)와, 모타의 잔류 전압을 검출하는 단계(S5)와, 운전개시 주파수에 의한 PWM 출력과 DC전압, 부하전류를 검출하는 단계(S6)와, 슬립 주파수(△F)를 계산하는 단계(S7)와, DC전압이 기준값 이상일때는 부하 전류에 의해서 계산한 △F를 현재의 운전 주파수에서 더하고 상기와 반대 경우는 빼주는 단계(S8)와, PWM을 출력하도록 제어하는 단계(S9)를 포함한 것을 특징으로 하는 인버터의 이상 재시동 운전방법.Determining whether it has recovered after the instantaneous power failure (S 1 ), Detecting the DC voltage at the time of restoration (S 2 ), Determining whether or not the under voltage state (S 3 ), and if not under voltage DC voltage Outputting (S 4 ), detecting a residual voltage of the motor (S 5 ), detecting a PWM output, a DC voltage, and a load current according to an operation start frequency (S 6 ), and a sleep frequency (△) F) to calculate (S 7 ), and when the DC voltage is higher than the reference value, add ΔF calculated by the load current at the current operating frequency and subtract if it is the opposite (S 8 ), and output the PWM The abnormal restart operation method of the inverter comprising the step of controlling (S 9 ). 제1항에 있어서, 슬립 주파수(△F)는 (DC전압-DC기준전압)*부하전류*용량별 스케일 상수인 것을 특징으로 하는 인버터의 이상 재시동 운전방법.2. The abnormal restart operation method of an inverter according to claim 1, wherein the slip frequency ΔF is a scale constant for each of (DC voltage-DC reference voltage) * load current * capacity. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920015837A 1992-09-01 1992-09-01 Operation method for re-start of inverter KR0156111B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920015837A KR0156111B1 (en) 1992-09-01 1992-09-01 Operation method for re-start of inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920015837A KR0156111B1 (en) 1992-09-01 1992-09-01 Operation method for re-start of inverter

Publications (2)

Publication Number Publication Date
KR940008214A true KR940008214A (en) 1994-04-29
KR0156111B1 KR0156111B1 (en) 1998-12-15

Family

ID=19338859

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920015837A KR0156111B1 (en) 1992-09-01 1992-09-01 Operation method for re-start of inverter

Country Status (1)

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KR (1) KR0156111B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100434135B1 (en) * 1997-07-15 2004-07-16 엘지산전 주식회사 Speed search method for inverter system, capable of smoothly operating motor when power is re-supplied after instantaneous power interruption
KR100434137B1 (en) * 1998-01-31 2004-08-31 엘지산전 주식회사 Speed search method for inverter system, for smoothly operating motor when power is re-supplied after instantaneous power outage
KR101242857B1 (en) * 2012-02-01 2013-03-12 엘에스산전 주식회사 Method for controling inverter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101238943B1 (en) * 2011-12-19 2013-03-04 엘에스산전 주식회사 Apparatus and method for compensating offset of current sensor
KR101459858B1 (en) 2012-12-28 2014-11-07 현대자동차주식회사 Control method for shortening start time of electric vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100434135B1 (en) * 1997-07-15 2004-07-16 엘지산전 주식회사 Speed search method for inverter system, capable of smoothly operating motor when power is re-supplied after instantaneous power interruption
KR100434137B1 (en) * 1998-01-31 2004-08-31 엘지산전 주식회사 Speed search method for inverter system, for smoothly operating motor when power is re-supplied after instantaneous power outage
KR101242857B1 (en) * 2012-02-01 2013-03-12 엘에스산전 주식회사 Method for controling inverter

Also Published As

Publication number Publication date
KR0156111B1 (en) 1998-12-15

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