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KR920013868A - 인버터장치의 지락(地絡) 검출기 및 지락검출방법 - Google Patents

인버터장치의 지락(地絡) 검출기 및 지락검출방법 Download PDF

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Publication number
KR920013868A
KR920013868A KR1019910005688A KR910005688A KR920013868A KR 920013868 A KR920013868 A KR 920013868A KR 1019910005688 A KR1019910005688 A KR 1019910005688A KR 910005688 A KR910005688 A KR 910005688A KR 920013868 A KR920013868 A KR 920013868A
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KR
South Korea
Prior art keywords
signal
ground fault
switching element
overcurrent
vector
Prior art date
Application number
KR1019910005688A
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English (en)
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KR960003405B1 (ko
Inventor
에이이찌 스기지마
다로오 안도
Original Assignee
시끼 모리야
미쯔비시 덴끼 가부시끼가이샤
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Publication of KR920013868A publication Critical patent/KR920013868A/ko
Application granted granted Critical
Publication of KR960003405B1 publication Critical patent/KR960003405B1/ko

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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
    • 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
    • H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC
    • H02M5/42—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters
    • H02M5/44—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC
    • H02M5/453—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M5/458—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
    • H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
    • H02H7/1216—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for AC-AC converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
    • H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
    • H02H7/122—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. DC/AC converters
    • H02H7/1227—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. DC/AC converters responsive to abnormalities in the output circuit, e.g. short circuit

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Protection Of Static Devices (AREA)

Abstract

내용 없음

Description

인버터 장치의 지락(地絡) 검출기 및 지락검출방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 제1의 발명이 일실시예를 도시한 회로도, 제5도는 본원 발명의 0벡터의 포착방법 및 스위칭소자의 게이트 제어를 설명하는 일회로예를 도시한 도면, 제7도는 인버터 장치로 지락(地絡)이 발생하였을 때를 설명하는 회로도, 제8도는 본원 발명의 지락의 판단을 소프트웨어처리할 경우의 플로차트

Claims (3)

  1. 교류를 직류로 정류(整流)하는 정류소자로 이루어진 콘버터부와, 상기 직류를 평활하는 콘덴서와, 상기 평활해진 직류를 다이오드와 병렬 접속된 스위칭소자의 온,오프 동작에 의해 소정의 주파수, 전압으로 변환하는 인버터부와, 상기 스위칭소자의 온, 오프를 제어하는 PWM신호 발생기로 이루어진 인버터장치에 있어서, 상기 스위칭 소자에 흐르는 전류를 검출하는 전류 검출부와, 상기 전류 거출부의 출력이 소저의 값 이상이 되었을 때에 과전류신호를 출력하는 과전류판정수단과, 상기 PWM신호발생기가 송출하는 전압 벡터신호가 0벡터신호일때 0벡터신호를 출력하는 0벡터판정수단과, 상기 과전류신호와 상기 0벡터신호에 의해 지락(地絡)으로 판단하는 지락검출부를 구비하는 것을 특징으로 하는 인버터장치의 지락검출기.
  2. 교류를 직류로 정류하는 정류소자로 이루어진 콘버터부와, 상기 직류를 평화러하는 콘덴서와, 상기 평활해진 직류를 다이오드와 병렬접속된 스위칭소자의 온,오프동작에 의해 소정의 주파수, 전압으로 변환하는 인버터부와, 상기 스위칭소자의 온,오프를 제어하는 PWM신호발생기로 이루어진 인버터장치에 있어서, 1)상기 스위칭소자에 흐르는 전류를 검출하는 스텝과 2)상기 검출한 전류를 과전류로 판단하여, 과전류신호를 발생하는 스텝과, 3)상기 PWM신호발생기가 송출하는 전압벡터신호가 0벡터일때 0벡터신호를 발생하는 스텝과, 4)상기 과전류신호와 상기 0벡터신호에 의해 지락신호를 발생하는 스텝으로 이루어진 것을 특징으로 하는 지락검출방법.
  3. 교류를 직류로 정류하는 전류소자로 이루어진 콘버터부와, 상기 직류를 평활하는 콘덴서와, 상기 평활해진 직류를 다이오드와 병열 접속된 스위칭소자의 온,오프 동작에 의해 소정의 주파수, 전압으로 변환하는 인버터부와, 상기 스위칭소자의 온,오프를 제어하는 PWM신호발생기로 이루어진 인버터장치에 있어서, 상기 마이너스측의 스위칭소자의 센스에미터에 전류를 검출하는 검출부를 배설하고, 이 신호를 각가비교기로 받아서 과전류판별신호와 비교하여, 상기 과전류판별신호 보다 클 경우에 출력을 보내고, 상기 출력을 하나의 포토커플러를 통해서 AND회로에 입력되는 과전류신호와 상기 PWM신호발생기가 송출하는 전압 벡터신호가 O벡터신호일때 O벡터 신호를 출력하는 O벡터판정수단으로 부터의 상기 O벡터신호에 의해 지락으로 판단하는 지락검출부를 구비하는 것을 특징으로 하는 인버터장치의 지락검출기.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910005688A 1990-12-14 1991-04-10 인버터장치의 지락(地絡)검출기 및 지락검출방법 KR960003405B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP90-402215 1990-12-14
JP2402215A JPH04210779A (ja) 1990-12-14 1990-12-14 インバータ装置の地絡検出器及び地絡検出方法

Publications (2)

Publication Number Publication Date
KR920013868A true KR920013868A (ko) 1992-07-29
KR960003405B1 KR960003405B1 (ko) 1996-03-09

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Country Status (6)

Country Link
US (1) US5214575A (ko)
EP (1) EP0490388B1 (ko)
JP (1) JPH04210779A (ko)
KR (1) KR960003405B1 (ko)
DE (1) DE69123331T2 (ko)
HK (1) HK1007038A1 (ko)

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Also Published As

Publication number Publication date
KR960003405B1 (ko) 1996-03-09
EP0490388B1 (en) 1996-11-27
HK1007038A1 (en) 1999-03-26
US5214575A (en) 1993-05-25
DE69123331T2 (de) 1997-05-07
JPH04210779A (ja) 1992-07-31
EP0490388A3 (en) 1993-03-10
EP0490388A2 (en) 1992-06-17
DE69123331D1 (de) 1997-01-09

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