KR970077944A - Control device of electronic contactor for induction motor - Google Patents

Control device of electronic contactor for induction motor Download PDF

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Publication number
KR970077944A
KR970077944A KR1019960018187A KR19960018187A KR970077944A KR 970077944 A KR970077944 A KR 970077944A KR 1019960018187 A KR1019960018187 A KR 1019960018187A KR 19960018187 A KR19960018187 A KR 19960018187A KR 970077944 A KR970077944 A KR 970077944A
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KR
South Korea
Prior art keywords
signal
thyristor
control device
induction motor
input
Prior art date
Application number
KR1019960018187A
Other languages
Korean (ko)
Other versions
KR100189293B1 (en
Inventor
권봉환
한경중
이형진
김재일
Original Assignee
김종진
포항종합제철 주식회사
정명식
학교법인 포항공과대학교
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.)
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Application filed by 김종진, 포항종합제철 주식회사, 정명식, 학교법인 포항공과대학교 filed Critical 김종진
Priority to KR1019960018187A priority Critical patent/KR100189293B1/en
Publication of KR970077944A publication Critical patent/KR970077944A/en
Application granted granted Critical
Publication of KR100189293B1 publication Critical patent/KR100189293B1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/26—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/02—Providing protection against overload without automatic interruption of supply
    • H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
    • H02P29/027—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the fault being an over-current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/60—Controlling or determining the temperature of the motor or of the drive
    • H02P29/68—Controlling or determining the temperature of the motor or of the drive based on the temperature of a drive component or a semiconductor component

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

Abstract

본 발명은 싸이리스터점호신호를 발생하기 위해 아날로그회로방식을 사용하지 않는 유도 전동기용 전자 접점기의 제어 장치이다.The present invention is a control device for an electromagnetic contactor for an induction motor that does not use an analog circuit system to generate a thyristor call signal.

이러한 전 기능이 디지탈화된 전자접점기의 제어장치는 최소회로로 구현되며 따라서 그 크기가 대폭 줄어들며 제작 원가의 절감되며 기존의 전자 접점기의 제어장치가 실행하기 어려운 접점기의 고기능인 과전류보호, 과부하보호, 부하권선 이상검출 등을 수행할 수 있다. 또한 아날로그회로방식은 전원전압의 주파수변동에 민감하나 제시된 방식은 전원전압의 주파수변동에도 소프트웨어의 융통성으로 쉽게 대치된다.The control device of the electronic contactor with all these functions is implemented with the minimum circuit. Therefore, the size of the control device of the electronic contactor is greatly reduced and the manufacturing cost is reduced. Protection, load winding fault detection, etc. can be performed. In addition, the analog circuit method is sensitive to the frequency change of the power supply voltage, but the proposed method is easily replaced by the flexibility of the software even in the frequency change of the power supply voltage.

Description

유도전동기용 전자접점기의 제어장치Control device of electronic contactor for induction motor

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

제 1 도는 본 발명에 의한 전자 접점기의 전력회로도이다, 제 2 도는 본 발명에 의한 유도 전동기용 전자 접점기의 제어장치의 구성을 보이는 블록도이다, 제 3 도는 본 발명에 의한 전 기능이 디지탈화된 전자 접점기의 제어장치회로도이다.FIG. 1 is a power circuit diagram of an electronic contactor according to the present invention. FIG. 2 is a block diagram showing the configuration of a control device for an electromagnetic contactor for an induction motor according to the present invention. FIG. 3 is a digital representation of all functions according to the present invention. Is a control circuit diagram of an electronic contactor.

Claims (4)

본 발명에 의한 유도전동기용 전자접점기의 제어장치에 있어서, 입력전원의 전압 신호에서 포토 커플러(photo couple)와 인버터회로를 이용하여 전원의 위상 정보를 검출하는 전원 신호 검출부와, 상기 정전, 역전의 운전 신호 입력(FWD 또는 REV)으로부터 시스템의 운전-정지, 정전, 역전의 방향을 결정하고, 가변 저항값(전류 리미터 단자)으로부터 전류 제한치를 결정하고, 가변 저항값(소스트 스타팅 단자)으로부터 소프트 스타트 시간을 결정하여 마이크로 콘트롤러에 입력되는 입력 기능 선택부와, 상기 과전류, 과부하 전류를 검출하여 이 검출 신호를 이용하여 과전류를 검출하여 시스템 오프하여 시스템을 보호하고, 기동시에는 전류 제한에 사용되는 출력 전류 신호 검출부와, 상기 마이크로 콘트롤러로부터 싸이리스터 점호 신호를 받아 싸이리스터를 점호하는 싸이리스터 구동부와, 상기 마이크로 콘트롤러가 수행하기 위한 기본회로와 래치와 롬으로 구성됨을 특징으로 하는 유도 전동기용 전자 접점기의 제어장치.An apparatus for controlling an electronic contactor for an induction motor according to the present invention, comprising: a power signal detection unit for detecting phase information of a power source using a photo coupler and an inverter circuit from a voltage signal of an input power source; From the operation signal input (FWD or REV) of the system, determine the direction of operation-stop, power failure, and reversal, determine the current limit value from the variable resistor value (current limiter terminal), and from the variable resistor value (sort starting terminal). Determining the soft start time, input function selection unit input to the microcontroller, and detects the overcurrent and overload current, and detects the overcurrent using this detection signal to protect the system by turning off the system, when starting the current limiting Outputs a thyristor firing signal from the micro-controller and A control device for an electromagnetic contactor for an induction motor, comprising: a thyristor driving unit for firing, a basic circuit for performing the microcontroller, a latch, and a ROM. 제 1 항에 있어서, 상기 입력 기능 선택부는 정전, 역전의 운전 신호 입력을 받아 정방향 운전 역방향 운전 방향을 결정하고, 운전시에는 시스템을 도통하게 되며 운전 외에는 소거하고, 과도시 엄청난 과전류가 흐르기 때문에 전류 제한 기능을 결정하는 기능 선택기와, 외부에서 주어진 지정된 최대 기동 시간에 따라 점호각을 결정하는 소프트 스타팅 시간 결정기로 구성됨을 특징으로 하는 유도 전동기용 전자 접점기의 제어장치.According to claim 1, wherein the input function selection unit receives the operation signal input of the power failure and the reverse, and determines the forward operation reverse operation direction, and during operation, the system conducts and erases other than the operation, because the excessive over current flows over current A control device for an electromagnetic contactor for an induction motor, characterized in that it comprises a function selector for determining a limiting function and a soft starting time determiner for determining the firing angle in accordance with a specified maximum start time given externally. 제 1 항에 있어서, 상기 출력 전류 신호 검출부는 기능 선택기의 소거 결정, b상 또는 c상의 과전류, 시스템을 온/오프시키는 온/오프 선택기와, 싸이리스터 방열판에 부착된 온도 센서로부터 신호를 검출 싸이리스터의 과열로 인한 파손을 방지하고, 3상 중 b, c 두 상의 전류를 입력받아 부하의 과전류 보호, 과부하 보호를 하며 부하 권선의 이상 유무를 판단하는 진단 기능기로 구성됨을 특징으로 하는 유도 전동기용 전자 접점기의 제어장치.The apparatus of claim 1, wherein the output current signal detector detects a signal from an erase decision of a function selector, an overcurrent of a b-phase or c-phase, an on / off selector for turning on / off a system, and a temperature sensor attached to a thyristor heat sink. It is composed of a diagnostic function that prevents damage due to overheating of the Lister and protects the overcurrent and overload of the load by inputting the currents of two phases of b and c. Control device of electronic contactor. 제 1 항에 있어서, 상기 소프트 스타팅 시간 결정부에서 싸이리스터 점호 신호를 받아 싸이리스터 점호기에 신호를 보내는 싸이리스터 점호 신호 발생부와, 싸이리스터 점호 신호를 받는 싸이리스터 점호부로 구성되는 구성됨을 특징으로 하는 유도 전동기용 전자 접점기의 제어장치.2. The apparatus of claim 1, wherein the soft starting time determiner comprises a thyristor call signal generator for receiving a thyristor call signal and sending a signal to a thyristor caller, and a thyristor call signal receiving a thyristor call signal. Control device for electromagnetic contactor for induction motor. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960018187A 1996-05-28 1996-05-28 Electronic contactor control apparatus for an induction motor KR100189293B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960018187A KR100189293B1 (en) 1996-05-28 1996-05-28 Electronic contactor control apparatus for an induction motor

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Application Number Priority Date Filing Date Title
KR1019960018187A KR100189293B1 (en) 1996-05-28 1996-05-28 Electronic contactor control apparatus for an induction motor

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KR970077944A true KR970077944A (en) 1997-12-12
KR100189293B1 KR100189293B1 (en) 1999-06-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100388841B1 (en) * 2001-03-22 2003-06-25 한국전기연구원 Firing pulse generator for a phase controlled rectifier and method thereof
KR100384454B1 (en) * 1998-12-23 2003-08-25 주식회사 포스코 Induction motor drive starter using current control
KR100429655B1 (en) * 2001-01-31 2004-05-03 한국전력공사 Control signal generator of exciting system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030097105A (en) * 2002-06-19 2003-12-31 현대자동차주식회사 Motor controlling system of electric vehicle
KR101241765B1 (en) 2012-10-19 2013-03-25 (주) 에치케이씨 An apparatus for driving a motor to adjust a valve for opening/closing fluids

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100384454B1 (en) * 1998-12-23 2003-08-25 주식회사 포스코 Induction motor drive starter using current control
KR100429655B1 (en) * 2001-01-31 2004-05-03 한국전력공사 Control signal generator of exciting system
KR100388841B1 (en) * 2001-03-22 2003-06-25 한국전기연구원 Firing pulse generator for a phase controlled rectifier and method thereof

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KR100189293B1 (en) 1999-06-01

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