KR870004565A - AC motor control method and control device - Google Patents

AC motor control method and control device Download PDF

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Publication number
KR870004565A
KR870004565A KR1019860008402A KR860008402A KR870004565A KR 870004565 A KR870004565 A KR 870004565A KR 1019860008402 A KR1019860008402 A KR 1019860008402A KR 860008402 A KR860008402 A KR 860008402A KR 870004565 A KR870004565 A KR 870004565A
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KR
South Korea
Prior art keywords
switching element
inverter
current
output frequency
motor
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KR1019860008402A
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Korean (ko)
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KR900002422B1 (en
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아끼오 히라다
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와다리스 기이찌로
가부시끼가이샤도시바
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Publication of KR870004565A publication Critical patent/KR870004565A/en
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Publication of KR900002422B1 publication Critical patent/KR900002422B1/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
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/505—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M7/515—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M7/525—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency
    • H02M7/527—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency by pulse width modulation
    • 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
    • H02M5/443—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 thyratron or thyristor type requiring extinguishing means
    • H02M5/45—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M5/4505—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only having a rectifier with controlled elements
    • 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
    • H02P2201/00—Indexing scheme relating to controlling arrangements characterised by the converter used
    • H02P2201/03—AC-DC converter stage controlled to provide a defined DC link voltage

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

Abstract

내용 없음No content

Description

교류전동기의 제어방법 및 그 제어장치AC motor control method and control device

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

제3도는 본 발명의 일실시예에 의한 인버터회로를 나타낸 블록 회로도.3 is a block circuit diagram showing an inverter circuit according to an embodiment of the present invention.

제4도는 제3도의 제어회로 18의 구체예를 나타낸 블록회로도.4 is a block circuit diagram showing a specific example of the control circuit 18 of FIG.

제5도는 제4도의 펄스발생기 190의 구성예를 나타낸 블록회로도.5 is a block circuit diagram showing an example of the configuration of the pulse generator 190 of FIG.

Claims (10)

정류기(12), 직류리엑터(13) 및 용량성부하(16)이 접속되는 인버터(14)로 구성되는 주파수 변환장치로 유도성부하인 교류전동기(15)를 가변속운전하는 제어방식에 있어서 다음 스템을 갖는 것을 특징으로 하는 교류전동기의 제어방법.In the control system for variable speed operation of the AC motor 15, which is an inductive load, the frequency converter is composed of an inverter 14 to which the rectifier 12, the DC reactor 13, and the capacitive load 16 are connected. AC motor control method comprising the. 가) 상기 인버터(14)를 구성하는 스위칭소자(141)을 이 인버터의 출력주파수가 소정치(제5도의 Vref)보다 낮을 때에는 강제전류되며,A) The switching element 14 1 constituting the inverter 14 is forced to the current when the output frequency of the inverter is lower than a predetermined value (V ref of FIG. 5), 나) 상기 스위칭소자(141)을 인버터의 출력주파수가 상기 소정치(Vref)보다 높을 때에는 부하전류되는 교류전동기의 제어방법.B) A control method of an AC motor in which the switching element (14 1 ) is subjected to a load current when the output frequency of the inverter is higher than the predetermined value (V ref ). 제1항에 있어서, 상기 소정치(Vrdf)는 상기 인버터(14)의 출력전류의 역률이 대략 1이 될때의 인버터출력 주파수에 대응하는 것이 특징인 교류 전동기의 제어방법.The control method according to claim 1, wherein the predetermined value (V rdf ) corresponds to an inverter output frequency when the power factor of the output current of the inverter (14) becomes approximately one. 제1항에 있어서, 상기 스위칭 소자의 각각은 자기소호형 스위칭소자(141)을 포함하는 것이 특징인 교류전동기의 제어방법.2. A control method according to claim 1, wherein each of the switching elements comprises a self-extinguishing switching element (14 1 ). 제3항에 있어서, 상기 스위칭 소자는 상기 자기 소호스위칭소자(141) 각각에 직렬 접속되는 자연전류형 스위칭소자(142)를 더 포함하는 것이 특징인 교류전동기의 제어방법.4. The control method according to claim 3, wherein the switching element further comprises a natural current switching element (14 2 ) connected in series with each of the magnetic arc switching elements (14 1 ). 정류기(12), 직류리엑터(13) 및 용량성부하(16)이 접속되는 인버터(16)으로 구성되는 주파수 변환장치를 사용하여 유도성하인 교류전동기(15)를 가변속운전하는 제어장치에 있어서,In the control apparatus for variable-speed operation of the induction load AC motor 15 using the frequency converter consisting of the inverter 16 connected with the rectifier 12, the direct current reactor 13, and the capacitive load 16, 가) 상기 인버터(14)의 출력주파수가 소정치(Vref)보다 높은 가의 여부를 검출하는 출력주파수 검출수단(제5도의 1905)과,A) output frequency detecting means (1905 in FIG. 5) for detecting whether the output frequency of the inverter 14 is higher than a predetermined value (V ref ); 나) 상기 출력주파수 검출수단(1905)에 결합되어 상기 출력주파수가 상기 소정치(Vref))보다도 낮을 때에는 상기 인버터 (14)를 구성하는 스위칭소자(141)을 강제 전류시키는 수단(1900,1903,1906,1907)과, 그리고B) means for forcibly energizing the switching element 14 1 constituting the inverter 14 when coupled to the output frequency detecting means 1905 and the output frequency is lower than the predetermined value V ref . 1903,1906,1907), and 다)상기 출력주파수 검출수단(1905)에 결합되고 상기 출력주파수가 상기 소정치(Vref)보다 높을 때에는 상기 스위칭소자(141)을 부하전류시키는 수단(1900,1904,1907)으로 구성되는 것이 특징인 교류전동기의 제어방법.C) means (1900, 1904, 1907) coupled to the output frequency detecting means (1905) and configured to load current the switching element (14 1 ) when the output frequency is higher than the predetermined value (V ref ). The control method of the AC motor. 제5항에 있어서, 상기 소정치(Vref)는 상기 인버터(14)의 출력전류의 역률 1이 대략이될 때의 인버터 출력주파수에 대응하는 것이 특징인 교류전동기의 제어장치.6. The control apparatus of an AC motor according to claim 5, wherein the predetermined value (V ref ) corresponds to an inverter output frequency when the power factor 1 of the output current of the inverter (14) becomes approximately. 제5항에 있어서, 상기 스위칭소자의 각각은 자기소호형 스위칭소자(141)를 포함하는 것이 특징인 교류전동기의 제어장치.6. The control apparatus of an AC motor according to claim 5, wherein each of the switching elements includes a self-extinguishing switching element (14 1 ). 제7항에 있어서, 상기 스위칭소자는 상기 소호형 스위칭소자(141)의 각각에 직렬접속되는 자연전류형스위칭소자(142)를 더 포함하는 것이 특징인 교류전동기의 제어장치.8. The control apparatus according to claim 7, wherein said switching element further comprises a natural current switching element (14 2 ) connected in series with each of said arc-type switching elements (14 1 ). 제8항에 있어서, 상기 강제전류 및 부하전류 수단(1900)에 결합되고 상기 자기소호형 스위칭소자(141)의 온으로부터 소정시간 늦춰서 상기 자연전류형 스위칭소자(142)를 온시키는 수단(1901,1902)를 더 포함하는 것이 특징인 교류전동기의 제어장치.The device according to claim 8, further comprising: means for coupling said forced current and load current means (1900) to turn on said natural current switching element (14 2 ) by a predetermined time delay from the on of said self-protecting switching element (14 1 ) Control device for an AC motor, characterized in that it further comprises 1901,1902. 제9항에 있어서, 상기 자기소호형 스위칭소자(141)는 게이트 턴오프 사이리스터이며 상기 자연전류형 스위칭 소자(142)는 사이리스터인 것이 특징인 교류전동기의 제어장치.10. The control apparatus of an AC motor according to claim 9, wherein said self-extinguishing switching element (14 1 ) is a gate turn-off thyristor and said natural current switching element (14 2 ) is a thyristor. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR8608402A 1985-10-09 1986-10-07 Ac motor method and its control apparatus KR900002422B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP60223455A JPS6285693A (en) 1985-10-09 1985-10-09 Control method for induction motor
JP223455 1985-10-09

Publications (2)

Publication Number Publication Date
KR870004565A true KR870004565A (en) 1987-05-11
KR900002422B1 KR900002422B1 (en) 1990-04-14

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KR8608402A KR900002422B1 (en) 1985-10-09 1986-10-07 Ac motor method and its control apparatus

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KR (1) KR900002422B1 (en)

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KR900002422B1 (en) 1990-04-14
JPS6285693A (en) 1987-04-20

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