KR970055177A - Output voltage control device of three-phase inverter - Google Patents

Output voltage control device of three-phase inverter Download PDF

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Publication number
KR970055177A
KR970055177A KR1019950048113A KR19950048113A KR970055177A KR 970055177 A KR970055177 A KR 970055177A KR 1019950048113 A KR1019950048113 A KR 1019950048113A KR 19950048113 A KR19950048113 A KR 19950048113A KR 970055177 A KR970055177 A KR 970055177A
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KR
South Korea
Prior art keywords
phase
inverter
proportional integral
voltage
output
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KR1019950048113A
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Korean (ko)
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KR100266403B1 (en
Inventor
김신섭
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이종수
Lg 산전 주식회사
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Priority to KR1019950048113A priority Critical patent/KR100266403B1/en
Publication of KR970055177A publication Critical patent/KR970055177A/en
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Publication of KR100266403B1 publication Critical patent/KR100266403B1/en

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    • 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
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • H02M1/4216—Arrangements for improving power factor of AC input operating from a three-phase input voltage
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of converters
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0009—Devices or circuits for detecting current in a converter

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

본 발명은 3상인버터의 출력전압 제어장치에 관한 것으로, 3상전원장치의 상기 제1, 제2, 제3필터커패시터의 3상전압을 검출해서 U,V,W상직류검출전압을 출력하는 U,V,W상직류검출기와; 상기 U,V,W상직류검출기의 U,V,W상직류검출전압을 소정의 기준전압과 각기 비교해서 오차를 구하는 U,V,W상전압비교기와; 이 U,V,W상전압비교기의 상기 오차에 대해서 비례적분제어를 하는 제1,제3,제5비례적분제어기와; 이 제1,제3,제5비례적분제어기의 출력에 위상정보를 곱하는 곱셈연산을 하여 U,V,W상기준전류를 구하는 U,V,W상곱셈기와; 이 U,V,W상곱셈기에서 구해진 상기 U,V,W상기준전류를 상기 인버터의 출력측에서 검출된 실제의 U,V,W상전류와 각기 비교하는 U,V,W상전류비교기와; 이 U,V,W상전류비교의 출력에 대해서 비례적분제어를 하는 제2,제4,제6비례적분제어기와; 이 제2,제4,제6비례적분제어기의 출력을 기준으로 해서 구동신호를 발생하고, 이를 상기 인버터에 입력하여 이 인버터의 스위칭소자를 온/오프시킴으로써 인버터의 3상출력전압을 제어하는 게이트구동부로 구성되어, 비선형부하나 불평등부하에서도 인버터의 3상출력전압을 정밀하게 제어할 수 있도록 한 것이다.The present invention relates to an output voltage control device for a three-phase inverter, which detects the three-phase voltage of the first, second, and third filter capacitors of the three-phase power supply device and outputs U, V, and W phase DC detection voltages. U, V, W phase DC detector; A U, V, W phase voltage comparator for comparing the U, V, W phase DC detection voltages of the U, V, W phase DC detectors with predetermined reference voltages to obtain an error; First, third, and fifth proportional integral controllers for performing proportional integral control on the error of the U, V, and W phase voltage comparators; A U, V, W phase multiplier for multiplying the output of the first, third, and fifth proportional integral controllers by multiplying phase information to obtain a U, V, W phase reference current; A U, V, W phase current comparator for comparing the U, V, W phase reference currents obtained by the U, V, W phase multipliers with actual U, V, W phase currents respectively detected at the output side of the inverter; Second, fourth, and sixth proportional integral controllers for performing proportional integral control on the outputs of the U, V, and W phase current comparisons; A gate for generating a drive signal based on the outputs of the second, fourth, and sixth proportional integral controllers and inputting the same to the inverter to control the three-phase output voltage of the inverter by turning on / off the switching element of the inverter. It is composed of a driving unit, so that it is possible to precisely control the three-phase output voltage of the inverter even under non-linear load or unbalanced load.

Description

3상 인버터의 출력전압 제어장치Output voltage control device of three-phase inverter

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

제1도는 종래 3상 인버터의 출력전압 제어장치의 구성도.1 is a configuration diagram of an output voltage control device of a conventional three-phase inverter.

제2도는 본 발명 3상 인버터의 출력전압 제어장치의 구성도.2 is a block diagram of an output voltage control device of the three-phase inverter of the present invention.

제3도는 제2도의 U상직류검출기의 내부구성도.3 is an internal configuration diagram of the U-phase DC detector of FIG.

Claims (2)

인버터와 제1,제2,제3필터커패시터를 포함하고 있는 3상전원장치의 3상출력 전압을 제어하는 3상 인버터의 출력전압 제어장치에 있어서, 3상전원장치의 상기 제1,제2,제3필터커패시터의 3상전압을 검출해서 U,V,W상직류검출전압을 출력하는 U,V,W상직류검출기와; 상기 U,V,W상직류검출기의 U,V,W상직류검출전압을 소정의 기준전압과 각기 비교해서 오차를 구하는 U,V,W상전압비교기와; 이 U,V,W상전압비교기의 상기 오차에 대해서 비례적분제어를 하는 제1,제3,제5비례적분제어기와; 이 제1,제3,제5비례적분제어기의 출력에 위상정보를 곱하는 곱셈연산을 하여 U,V,W상기준전류를 구하는 U,V,W상곱셈기와; 이 U,V,W상곱셈기가 구한 상기 U,V,W상기준전류를 상기 인버터의 출력측에서 검출된 실제의 U,V,W상전류와 각기 비교하는 U,V,W상전류비교기와; 이 U,V,W상전류비교의 출력에 대해서 비례적분제어를 하는 제2,제4,제6비례적분제어기와; 이 제2,제4,제6비례적분제어기의 출력을 기준으로 해서 구동신호를 발생하고, 이를 상기 인버터에 입력하여 이 인버터의 스위칭소자를 온/오프시킴으로써 인버터의 3상출력전압을 제어하는 게이트구동부로 구성되어 있는 것을 특징으로 하는 3상 인버터의 출력전압 제어장치.An output voltage control device for a three-phase inverter for controlling a three-phase output voltage of a three-phase power supply device including an inverter and first, second, and third filter capacitors, wherein the first and second of the three-phase power supply device. A U, V, W phase DC detector for detecting the three-phase voltage of the third filter capacitor and outputting U, V, W phase DC detection voltages; A U, V, W phase voltage comparator for comparing the U, V, W phase DC detection voltages of the U, V, W phase DC detectors with predetermined reference voltages to obtain an error; First, third, and fifth proportional integral controllers for performing proportional integral control on the error of the U, V, and W phase voltage comparators; A U, V, W phase multiplier for multiplying the output of the first, third, and fifth proportional integral controllers by multiplying phase information to obtain a U, V, W phase reference current; A U, V, W phase current comparator for comparing the U, V, W phase reference currents obtained by the U, V, W phase multipliers with actual U, V, W phase currents detected at the output side of the inverter; Second, fourth, and sixth proportional integral controllers for performing proportional integral control on the outputs of the U, V, and W phase current comparisons; A gate for generating a drive signal based on the outputs of the second, fourth, and sixth proportional integral controllers and inputting the same to the inverter to control the three-phase output voltage of the inverter by turning on / off the switching element of the inverter. An output voltage control device for a three-phase inverter comprising a drive unit. 제 1 항에 있어서, 상기 U,V,W상직류검출기는 입력된 각 상전압에 제 1 위상정보를 곱하는 제 1 승산기와, 소정의 기준전압에 제 2 위상정보를 곱하는 제 2 승산기와, 상기 제 2 승산기의 출력과 상기 제 1 승산기의 출력을 더하는 가산기로 각각 구성되어 있는 것을 특징으로 하는 3상 인버터의 출력전압 제어장치.2. The apparatus of claim 1, wherein the U, V, and W phase DC detectors comprise: a first multiplier that multiplies each input phase voltage by first phase information; a second multiplier that multiplies a predetermined reference voltage by second phase information; And an adder for adding the output of the second multiplier and the output of the first multiplier, respectively. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950048113A 1995-12-09 1995-12-09 Output voltage control device for 3-phase inverter KR100266403B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950048113A KR100266403B1 (en) 1995-12-09 1995-12-09 Output voltage control device for 3-phase inverter

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Application Number Priority Date Filing Date Title
KR1019950048113A KR100266403B1 (en) 1995-12-09 1995-12-09 Output voltage control device for 3-phase inverter

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KR970055177A true KR970055177A (en) 1997-07-31
KR100266403B1 KR100266403B1 (en) 2000-09-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100339268B1 (en) * 1999-09-28 2002-05-31 이종수 Method for inverter output voltage error compensation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100903646B1 (en) 2007-10-09 2009-06-18 엘지전자 주식회사 Motor controller of air conditioner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100339268B1 (en) * 1999-09-28 2002-05-31 이종수 Method for inverter output voltage error compensation

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