KR960012678A - Dead time compensation device of inverter - Google Patents

Dead time compensation device of inverter Download PDF

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Publication number
KR960012678A
KR960012678A KR1019940024520A KR19940024520A KR960012678A KR 960012678 A KR960012678 A KR 960012678A KR 1019940024520 A KR1019940024520 A KR 1019940024520A KR 19940024520 A KR19940024520 A KR 19940024520A KR 960012678 A KR960012678 A KR 960012678A
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KR
South Korea
Prior art keywords
phase
converter
output
outputs
current
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KR1019940024520A
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Korean (ko)
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이재택
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이희종
엘지산전 주식회사
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Priority to KR1019940024520A priority Critical patent/KR960012678A/en
Publication of KR960012678A publication Critical patent/KR960012678A/en

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  • Inverter Devices (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

본 발명은 인버터의 데드타임 보상장치에 관한 것으로, 정지계에서 구동하는 3상 유도전동기의 전류원을 2상 전류원으로 변환시켜 출력하는 제1 3상/2상 변환기와, 상기 제1 3상/2상 변환기의 출력과 위상각 지령치를 받아 회전계의 2상 전유원으로 변환시켜 출력하는 제1정지계/회전계 변환기와, 정지계에서 구동하는 3상 유도전동기의 전류원을 입력으로 하여 3상에 해당되는 보상 전압을 출력하는 보상전압발생기와 상기 보상전압발생기의 출력전압을 선택적으로 받아 2상 전압원으로 변환시켜 출력하는 제2 3상/2상 변환기와, 상기 제2 3상/2상 변환기의 출력과 위상각지령치를 받아 회전계의 2상에 해당되는 데드타임 보상전압으로 변화시켜 출력하는 제2정지계/회전계 변환기와, 복수개 회전축의 입력전류와 상기 제1정지계/회전계 변환기의 출력을 선택적으로 감산되어 출력한 전류를 회전계의 해당 전류로 각각 제어하여 출력하는 제1, 2전류 제어기와 상기 제1, 2전류제어기의 출력과 제2정지계/회전계 변환기의 출력이 선택적으로 각각 감산된 출력을 받아 정지계의 해당되는 상으로 각각 변환시켜 출력하는 회전계/정지계 변환기와 상기 회전계/정지계 변환기의 출력을 3상으로 변환시켜 출력하는 2상/3상 변환기와, 상기 2상/3상 변환기의 출력을 입력으로 하여 3상 유도전동기를 구동시키기 위해 각 상에 해당되는 정형파 펄스폭 변조신호를 출력하는 정형파 펄스폭 변조신호발생기를 포함하여 구성됨을 특징으로 한다.The present invention relates to a dead time compensation device of an inverter, comprising: a first three-phase / two-phase converter for converting and outputting a current source of a three-phase induction motor driven by a stationary system to a two-phase current source; The first stop / rotator converter converts the output of the phase converter and the phase angle command value into a two-phase power source of the rotation system, and outputs the current source of the three-phase induction motor driven by the stationary system. A compensation voltage generator for outputting a compensation voltage, a second three-phase / two-phase converter for selectively receiving the output voltage of the compensation voltage generator, converting the output voltage into a two-phase voltage source, and outputting the second three-phase / two-phase converter; A second stop system / rotator converter which receives the phase angle command value and changes the dead time compensation voltage corresponding to the two phases of the tachometer, and outputs the input currents of the plurality of rotating shafts and the outputs of the first stop system / rotator converter The outputs of the first and second current controllers, the outputs of the first and second current controllers, and the outputs of the second stop system / rotator converter are selectively subtracted, respectively. A two-phase / three-phase converter that receives the output and converts it into a corresponding phase of the stationary system, respectively, and outputs the three-phase converter by converting the output of the rotation / stop system converter into three phases; And a square wave pulse width modulation signal generator for outputting a square wave pulse width modulation signal corresponding to each phase to drive a three-phase induction motor using the output of the phase converter as an input.

Description

인버터의 데드타임 보상장치Dead time compensation device of inverter

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

제3도는 본 발명 제1실시예의 구성블럭도,3 is a block diagram of a first embodiment of the present invention;

제4도는 본 발명 제2실시예의 구성블럭도.4 is a block diagram of a second embodiment of the present invention.

Claims (2)

정지계에서 구동되는 3상 유도전동기의 전류원을 2상 전유원으로 변환시켜 출력하는 제1 3상/2상 변환기와, 상기 제1 3상/2상 변환기의 출력과 위상각 지령치를 받아 회전계의 2상 전류원으로 변환시켜 출력하는 제1정지계/회전계 변환기와 3상 유도전동기의 전류원을 입력으로 하여 3상에 해당되는 보상전압을 출력하는 보상전압발생기와, 상기 보상전압발생기의 출력전압을 선택적으로 받아 2상 전압원으로 변환시켜 출력하는 제2 3상/2상 변환기와 상기 제2 3상/2상 변환기의 출력과 위상각 지령치를 받아 회전계의 2상에 해당되는 데드타임 보상전압으로 변환시켜 출력하는 제2정지계/회전계변환기와, 복수개 회전축의 입력전류와 상기 제1정지계/회전계 변환기의 출력을 선택적으로 감산되어 출력한 전류를 회전계의 해당 전류로 각각 제어하여 출력하는 제1, 2전류제어기와, 상기제1, 2전류제어기의 출력과 제2정지계/회전계 변환기의 출력이 선택적으로 각각 감산된 출력을 받아 정지계의 해당되는 상으로 각각 변환시켜 출력하는 회전계/정지계 변환기와, 상기 회전계/정지계 변환기의 출력을 3상으로 변환시켜 출력하는 2상/3상 변환기와, 상기 2상/3상변환기의 출력을 입력으로 하여 3상유도 전동기를 구동시키기 위해 각 상에 해당되는 정형파 펄스폭 변조신호를 출력하는 정형파 펄스폭 변조신호를 발생기를 포함하여 구성됨을 특징으로 하는 인버터의 데드타임 보상장치.A first three-phase / two-phase converter for converting and outputting a current source of the three-phase induction motor driven by the stationary system to a two-phase all-electric source; and receiving the output and the phase angle command value of the first three-phase / two-phase converter, A compensation voltage generator for outputting a compensation voltage corresponding to three phases by inputting a current source of a first stop system / rotator converter and a three-phase induction motor, which are converted into a two-phase current source, and an output voltage of the compensation voltage generator is selectively selected. Receives the output of the second three-phase / two-phase converter and the output of the second three-phase / two-phase converter and the phase angle command value, and converts the dead-time compensation voltage corresponding to the two-phase of the tachometer. Selectively subtracts the output of the second stop system / tachometer converter and the input current of the plurality of rotary shafts and the outputs of the first stop system / tachometer converter to control and output the output current to the corresponding current of the tachometer, respectively. The first and second current controllers, and the output of the first and second current controllers and the output of the second stop system / tachometer converter are selectively subtracted, respectively, and outputs by converting them into the corresponding phases of the stationary system. To drive a three-phase induction motor by using a stationary converter, a two-phase / three-phase converter that converts the output of the tachometer / stop system converter into three-phase output, and an output of the two-phase / three-phase converter. And a generator for generating a square wave pulse width modulated signal for outputting a square wave pulse width modulated signal corresponding to each phase. 제1항에 있어서, 보상전압발생기의 입력단은 직접 제1정지계/회전계 변환기의 출력단에 연결되고 출력단은 제1, 2전류제어기의 각 출력단에 연결되어 구성됨을 특징으로 하는 인버터의 데드타임 보상장치.2. The dead time compensation apparatus of an inverter according to claim 1, wherein an input terminal of the compensating voltage generator is directly connected to an output terminal of the first stop system / rotator converter and an output terminal is connected to each output terminal of the first and second current controllers. . ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940024520A 1994-09-28 1994-09-28 Dead time compensation device of inverter KR960012678A (en)

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KR1019940024520A KR960012678A (en) 1994-09-28 1994-09-28 Dead time compensation device of inverter

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KR1019940024520A KR960012678A (en) 1994-09-28 1994-09-28 Dead time compensation device of inverter

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KR960012678A true KR960012678A (en) 1996-04-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100315183B1 (en) * 1998-09-24 2002-02-19 박귀태 Dead time compensation method for vector control induction motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100315183B1 (en) * 1998-09-24 2002-02-19 박귀태 Dead time compensation method for vector control induction motor

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