KR970048590A - Encoder signal error detection device of permanent magnet synchronous motor - Google Patents

Encoder signal error detection device of permanent magnet synchronous motor Download PDF

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Publication number
KR970048590A
KR970048590A KR1019950069226A KR19950069226A KR970048590A KR 970048590 A KR970048590 A KR 970048590A KR 1019950069226 A KR1019950069226 A KR 1019950069226A KR 19950069226 A KR19950069226 A KR 19950069226A KR 970048590 A KR970048590 A KR 970048590A
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KR
South Korea
Prior art keywords
phase
detector
encoder signal
input
signal
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KR1019950069226A
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Korean (ko)
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KR0179578B1 (en
Inventor
권택준
김웅희
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석진철
대우중공업 주식회사
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Priority to KR1019950069226A priority Critical patent/KR0179578B1/en
Publication of KR970048590A publication Critical patent/KR970048590A/en
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Publication of KR0179578B1 publication Critical patent/KR0179578B1/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34Testing dynamo-electric machines
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/16Measuring asymmetry of polyphase networks

Abstract

본 발명은 영구자석 동기모터의 엔코더에서 출력되는 이상 상태신호를 감지하도록 한 영구자석 동기모터의 엔코더신호 이상 검출장치에 관한 것으로서, 마이크로 프로세서가 U상 엔코더신호 검출부, V상 엔코더신호 검출부 및 W상 엔코더신호 검출부로 입력되는 U상, U/상 또는 V상, V/상 또는 W상, W/상이 정상적으로 입력되는 지를 하드웨어적으로 감지한 후 정상적으로 입력되면 상기한 U상, V상, W상이 정상적인 펄스열을 가지면서 출력되는 지를 소프트웨어적으로 감지하여 엔코더신호 이상 상태를 보다 정확하게 검출할 수 있는 효과가 있다.The present invention relates to an encoder signal abnormality detection device of a permanent magnet synchronous motor for detecting an abnormal state signal output from the encoder of the permanent magnet synchronous motor, wherein the microprocessor includes a U phase encoder signal detector, a V phase encoder signal detector, and a W phase. If the U phase, U / phase or V phase, V / phase or W phase and W / phase inputted to the encoder signal detection unit are detected in hardware and normally input, then the U phase, V phase, and W phase are normal. Software can detect whether the output has a pulse train can detect the abnormal state of the encoder signal more accurately.

Description

영구자석 동기모터의 엔코더신호 이상 검출장치Encoder signal error detection device of permanent magnet synchronous motor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제4도는 본 발명에 의한 영구자석 동기모터의 엔코더신호 이상 검출장치의 회로 구성도이다.4 is a circuit configuration diagram of an encoder signal abnormality detection device of a permanent magnet synchronous motor according to the present invention.

Claims (2)

U상 엔코더신호 검출부(11)로 입력되는 U상, U/상이 동일하면 '로우' 레벨의 신호르 출력하는 U상 감지부와; V상 엔코더신호 검출부(12)로 입력되는 V상, V/상이 동일하면 '로우' 레벨의 신호를 출력하는 V상 감지부; W상 엔코더신호 검출부(13)로 입력되는 W, W/상이 동일하면 '로우' 레벨의 신호를 출력하는 W상 감지부; 상기 U상 감지부, V상 감지부 및 W상 감지부의 출력 신호기를 입력하는 논리 합을 수행하는 앤드 게이트(14) ; 및 입력된 상기 앤드 게이트(14)의 출력 신호를 판단하여 이상 상태가 아니면, 상기 U상 엔코더 신호 검출부(11)와 V상 엔코더 신호 검출부(12) 및 W상 엔코더 신호 검출부(13)의 출력 신호를 감지하여 '000' 또는 '111'일 경우에 이상 상태로 판단하는 마이크로프로세서(15)로 구성된 것을 특징으로 하는 영구자석 동기모터의 엔코더 신호 이상 검출장치.A U-phase detector for outputting a U-phase signal input to the U-phase encoder signal detector 11 and a 'low' level signal if U / phase is the same; A V-phase detector configured to output a V-phase signal input to the V-phase encoder signal detector 12 and a 'low' level signal when the V / phases are the same; A W-phase detector for outputting a signal of 'low' level if W and W / phase input to the W-phase encoder signal detector 13 are the same; An AND gate 14 for performing a logic sum to input an output signal of the U-phase detector, the V-phase detector, and the W-phase detector; And an output signal of the U-phase encoder signal detector 11, the V-phase encoder signal detector 12, and the W-phase encoder signal detector 13 when the input signal of the AND gate 14 is not abnormal. The encoder signal abnormality detection device of a permanent magnet synchronous motor, characterized in that consisting of a microprocessor (15) for detecting the abnormal state in the case of detecting '000' or '111'. 제1항에 있어서, 상기 U상 감지부는, V상 감지부 및 W상 감지부는 U상, V상 및 W상이 각각 정입력 단자로 입력되고 기준 전압이 부입력 단자로 입력되는 제1비교기(COM1, COM3, COM5)와; U/상, V/상 및 W/상이 각각 정입력 단자로 입력되고 기준 전압이 부입력 단자로 입력되는 제2비교기(COM2, COM4, COM6); 및 상기 제1비교기(COM1, COM3, COM5) 및 제2비교기(COM2, COM4, COM6)의 출력 신호가 입력되고 그 출력 신호는 각각 상기 앤드 게이트(14)로 입력되는 배타적 오아 게이트(EOR1, EOR2, EOR3)로 구성된 것을 특징으로 하는 영구자석 동기모터의 엔코더신호 이상 검출장치.The first comparator of claim 1, wherein the U-phase detection unit, the V-phase detection unit, and the W-phase detection unit each input a U phase, a V phase, and a W phase to a positive input terminal and a reference voltage to a negative input terminal. , COM3, COM5); Second comparators (COM2, COM4, COM6) into which U / phase, V / phase, and W / phase are respectively input to the positive input terminal and the reference voltage is input to the negative input terminal; And exclusive OR gates EOR1 and EOR2 input to output signals of the first comparators COM1, COM3, and COM5 and the second comparators COM2, COM4, and COM6, and the output signals are respectively input to the AND gate 14. , EOR3) encoder signal abnormality detection device for a permanent magnet synchronous motor, characterized in that consisting of. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950069226A 1995-12-30 1995-12-30 Apparatus for detecting the error of encoder signal of permanent magnet synchronous motor KR0179578B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950069226A KR0179578B1 (en) 1995-12-30 1995-12-30 Apparatus for detecting the error of encoder signal of permanent magnet synchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950069226A KR0179578B1 (en) 1995-12-30 1995-12-30 Apparatus for detecting the error of encoder signal of permanent magnet synchronous motor

Publications (2)

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KR970048590A true KR970048590A (en) 1997-07-29
KR0179578B1 KR0179578B1 (en) 1999-04-01

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