KR950013956A - Converter protection of elevator - Google Patents

Converter protection of elevator Download PDF

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Publication number
KR950013956A
KR950013956A KR1019930025533A KR930025533A KR950013956A KR 950013956 A KR950013956 A KR 950013956A KR 1019930025533 A KR1019930025533 A KR 1019930025533A KR 930025533 A KR930025533 A KR 930025533A KR 950013956 A KR950013956 A KR 950013956A
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KR
South Korea
Prior art keywords
current
voltage command
voltage
elevator
monitoring unit
Prior art date
Application number
KR1019930025533A
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Korean (ko)
Other versions
KR0167166B1 (en
Inventor
장철호
Original Assignee
이희종
엘지산전 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이희종, 엘지산전 주식회사 filed Critical 이희종
Priority to KR1019930025533A priority Critical patent/KR0167166B1/en
Publication of KR950013956A publication Critical patent/KR950013956A/en
Application granted granted Critical
Publication of KR0167166B1 publication Critical patent/KR0167166B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Control (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

본 발명은 엘리베이터의 컨버터 보호장치에 관한 것으로, 종래에는 전압검출기나 전류검출기를 구성하는 소장등에 고장이 발생하면 전압제어 및 전류제어가 불안정하게 되어 엘리베이터 제어성능이 저하됨은 물론 컨버터나 인버터를 구성하는 IGBT 및 평활콘덴서등을 파괴시키는 등의 문제점이 있었다. 따라서 종래의 문제점을 해결하기 위하여 본 발명은 엘리베이터에 부름이 없어 정지하고 있는 시간에 컨버터제어기를 동작시켜 동작상태를 확인하여 고장유무를 판단하고, 컨버터제어기의 전압지령을 갑자기 차단했을때 평활콘덴서 양단의 전압이 감소하는 시간을 확인하여 콘덴서 고장유무를 판단하도록 하여 컨버터를 보호하도록 한 효과가 있다.The present invention relates to a converter protection device of an elevator, and in the related art, when a failure occurs in a small part of a voltage detector or a current detector, voltage control and current control become unstable, and as a result, elevator control performance is lowered as well as a converter or an inverter. There were problems such as destroying the IGBT and the smoothing capacitor. Therefore, in order to solve the conventional problems, the present invention determines whether there is a failure by operating the converter controller at a time when there is no call to the elevator to determine the operation status, and when both ends of the smoothing capacitor are suddenly cut off the voltage command of the converter controller. It is effective to protect the converter by checking the time that the voltage decreases to determine the failure of the capacitor.

Description

엘리베이터의 컨버터 보호장치Converter protection of elevator

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

제1도는 종래 엘리베이터의 컨버터 제어장치 구성도.1 is a block diagram of a converter control apparatus of a conventional elevator.

제2도는 제1도에 있어서, 컨버터제어기의 상세도.2 is a detailed view of the converter controller in FIG.

제3도는 본 발명 엘리베이터의 컨버터 보호장치 구성도.3 is a block diagram of a converter protection device of the elevator of the present invention.

제4도는. 제3도에 있어서, 전압제어기 감시 곡선.4 is. The voltage controller monitoring curve in FIG.

Claims (1)

엘리베이터의 부름이 일정시간 없으면 동작상태 확인에 따른 전압지령을 발생하도록 하는 전압지령부(15)와, 메인 마이크로컴퓨터로부터 발생하는 엘리베이터의 동작에 따른 전압지령 또는 상기 전압 지령부(15)로부터 발생하는 동작상태 확인에 따른 전압지령을 시간에 따라 스위칭하여 출력토록 하는 전압지령절체기(S1)와, 상기 전압지령절체기(S1)를 통해 출력된 전압지령을 비반전단자(+)로 전압검출기(4)를 통해 검출된 전압검출치를 반전단자(-)를 통해 감산된 출력값에 따른 전류지령을 산출하여 출력하는 전압제어기(12)와, 인버터에 인가되는 전류를 검출하는 전류검출기(5)의 전류검출치를 감산하는 제2감산기(13)와, 상기 제2감산기(13)를 통해 감산된 출력값에 해당하는 전류를 출력토록 하는 전류제어기(14)를 통해 검출된 전압검출치를 비교하여 고장여부를 판단하는 전압제어기 감시부(16)와, 상기 전압제어기(12)로부터 출력된 전류지령과 전류검출기(5)를 통해 검출된 전류검출치를 비교하여 고장여부를 판단하는 전류제어기 감시부(17)와, 시정수를 계산한 후 시정수설정치와 비교하여 고장여부를 판단하는 콘덴서-분배저항 감시부(18)와, 상기 전압베어기 감시부(16)와 전류제어기 감시부(17)및 콘덴서-분배저항감시부(18)로부터 입력된 고장여부 판단신호에 따라 엘리베이터의 부름을 차단하고 고장난 부분을 메인 마이크로컴퓨터로 전송하는 처리부(19)로 구성됨을 특징으로 하는 엘리베이터의 컨버터 보호장치.If the call of the elevator does not exist for a certain time, the voltage command unit 15 for generating a voltage command according to the operation state check, and the voltage command according to the operation of the elevator generated from the main microcomputer or generated from the voltage command unit 15 The voltage command switch S1 for switching the voltage command according to the operation state according to time and outputting the voltage command, and the voltage command output through the voltage command changer S1 to the non-inverting terminal (+). 4) the current of the voltage controller 12 which calculates and outputs a current command according to the output value subtracted through the inverting terminal (-) and the current detector 5 which detects the current applied to the inverter. The second subtractor 13 which subtracts the detected value and the current detected by the current controller 14 which outputs a current corresponding to the output value subtracted through the second subtractor 13 are compared. The voltage controller monitoring unit 16 which determines whether there is a failure, and the current controller monitoring unit which determines whether there is a failure by comparing the current command output from the voltage controller 12 with the current detection value detected by the current detector 5 ( 17), the capacitor-distribution resistance monitoring unit 18 which calculates the time constant and compares it with the time constant setting value to determine whether there is a fault, the voltage bearing monitoring unit 16 and the current controller monitoring unit 17, The converter protection device of the elevator characterized in that it comprises a processing unit (19) for interrupting the call of the elevator in accordance with the failure determination signal input from the condenser-distribution resistance monitoring unit (18) and transmitting the broken portion to the main microcomputer. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930025533A 1993-11-27 1993-11-27 Safe guard converter of an elevator KR0167166B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930025533A KR0167166B1 (en) 1993-11-27 1993-11-27 Safe guard converter of an elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930025533A KR0167166B1 (en) 1993-11-27 1993-11-27 Safe guard converter of an elevator

Publications (2)

Publication Number Publication Date
KR950013956A true KR950013956A (en) 1995-06-15
KR0167166B1 KR0167166B1 (en) 1998-12-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930025533A KR0167166B1 (en) 1993-11-27 1993-11-27 Safe guard converter of an elevator

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6140789A (en) * 1995-06-30 2000-10-31 Mitsubishi Denki Kabushiki Kaisha Method of detecting, diagnosing and automatically correcting abnormalities in servo control system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101701768B1 (en) * 2015-11-26 2017-02-03 삼성중공업 주식회사 Motor driving apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6140789A (en) * 1995-06-30 2000-10-31 Mitsubishi Denki Kabushiki Kaisha Method of detecting, diagnosing and automatically correcting abnormalities in servo control system
US6232737B1 (en) 1995-06-30 2001-05-15 Mitsubishi Denki Kabushiki Kaisha Method of detecting, diagnosing and automatically correcting abnormalities in servo control system

Also Published As

Publication number Publication date
KR0167166B1 (en) 1998-12-01

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