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KR960019947A - Output Compensation Circuit for Input Variation of Inverter - Google Patents

Output Compensation Circuit for Input Variation of Inverter Download PDF

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Publication number
KR960019947A
KR960019947A KR1019940028982A KR19940028982A KR960019947A KR 960019947 A KR960019947 A KR 960019947A KR 1019940028982 A KR1019940028982 A KR 1019940028982A KR 19940028982 A KR19940028982 A KR 19940028982A KR 960019947 A KR960019947 A KR 960019947A
Authority
KR
South Korea
Prior art keywords
inverter
voltage
wave
output
pulse width
Prior art date
Application number
KR1019940028982A
Other languages
Korean (ko)
Inventor
김대환
Original Assignee
이헌조
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이헌조, 엘지전자 주식회사 filed Critical 이헌조
Priority to KR1019940028982A priority Critical patent/KR960019947A/en
Publication of KR960019947A publication Critical patent/KR960019947A/en

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  • Inverter Devices (AREA)

Abstract

본 발명은 인버터의 입력변동에 대한 출력보상회로에 관한 것으로, 특히 입력전압의 변동에 대한 전압차를 검출하여 그 전압변동에 대한 보상값을 연산하고 인버터구동을 위한 펄스폭변조파 합성용 삼각파의 크기를 조절함으로써 출력변동을 보상할 수 있는 인버터의 입력변동에 대한 출력보상회로를 제공함에 있다.The present invention relates to an output compensation circuit for an input variation of an inverter. In particular, the present invention relates to an output compensation circuit that detects a voltage difference with respect to an input voltage variation, calculates a compensation value for the voltage variation, and compares a triangular wave for synthesizing a pulse width modulation wave for driving an inverter. The present invention provides an output compensation circuit for an input variation of an inverter that can compensate for an output variation by adjusting a magnitude.

특징적인 구성으로는 컨버터부를 통해 직류로 변환된 신호를 이용하여 입력전원의 변동에 대한 전압차를 검출하는 전압검출수단과; 검출된 입력전원전압값의 변동분에 대한 보상값을 연산하여 그 보상값으로 정현파와 조합되어 펄스폭 변조파를 만들어내기 위한 삼각파의 크기를 조절하는 전압변동보상수단을 구비함에 있다.A characteristic configuration includes: voltage detecting means for detecting a voltage difference with respect to a change in input power using a signal converted into direct current through a converter; Comprising a voltage change compensation means for calculating a compensation value for the detected change in the input power supply voltage value and adjusting the magnitude of the triangular wave to produce a pulse width modulated wave combined with the sine wave as the compensation value.

Description

인버터의 입력변동에 대한 출력보상회로Output Compensation Circuit for Input Variation of Inverter

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

제2도는 본 발명에 의한 인버터의 입력변동에 대한 출력보상회로 블럭도.2 is a block diagram of an output compensation circuit for an input variation of an inverter according to the present invention.

Claims (1)

교류의 입력전원을 리플이 함유된 직류전원으로 변환하는 컨버터부와, 상기 컨버터부출력의 리플이 함유된 직류전원을 평활화하는 평활회로부와, 상기 평활회로부에서 평활된 직류전원을 다시 교류전원으로 변환하는 인버터부와, 상기 컨버터부를 통해 직류로 변환된 신호를 이용하여 입력전원의 변동에 대한 전압차를 검출하는 전압검출부와, 상기 전압검출부에서 검출된 입력전원전압값의 변동분에 대한 보상값을 연산하는 전압변동보상부와, 상기 전압변동보상부에서 연산된 보상값으로 인버터구동을 위한 펄스폭 변조파 합성용 삼각파의 크기를 조절하는 삼각파발생부와, 원하는 주파수와 크기의 정현파를 생성하는 정현파발생부와, 상기 삼각파발생부와 정현파발생부의 두 출력파형을 조합하여 펄스폭 변조(PWM)파를 생성하는 펄스폭변조부와, 상기 펄스폭변조부의 출력신호에 따라 인버터부의 구동을 제어하는 구동회로부로 구성된 것을 특징으로 하는 인버터의 입력변동에 대한 출력보상회로.A converter unit for converting an AC input power into a DC power source containing ripple, a smoothing circuit unit for smoothing a DC power source containing ripple of the converter unit output, and a DC power smoothed in the smoothing circuit unit back to an AC power source Calculates a compensation value for a change in the input power voltage value detected by the inverter unit, a voltage detector for detecting a voltage difference with respect to a change in input power using a signal converted into direct current through the converter unit, and A voltage fluctuation compensator, a triangular wave generator for adjusting the amplitude of the pulse width modulated wave synthesis triangle wave for driving the inverter with a compensation value calculated by the voltage fluctuation compensator, and a sine wave generating a sine wave having a desired frequency and magnitude. A pulse width modulator for generating a pulse width modulated (PWM) wave by combining two output waveforms of the triangular wave generator and the sinusoidal wave generator; Output compensation circuit for the input variation of the inverter, characterized in that consisting of a drive circuit for controlling the drive of the inverter according to the output signal of the pulse width modulator. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940028982A 1994-11-05 1994-11-05 Output Compensation Circuit for Input Variation of Inverter KR960019947A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940028982A KR960019947A (en) 1994-11-05 1994-11-05 Output Compensation Circuit for Input Variation of Inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940028982A KR960019947A (en) 1994-11-05 1994-11-05 Output Compensation Circuit for Input Variation of Inverter

Publications (1)

Publication Number Publication Date
KR960019947A true KR960019947A (en) 1996-06-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940028982A KR960019947A (en) 1994-11-05 1994-11-05 Output Compensation Circuit for Input Variation of Inverter

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Country Link
KR (1) KR960019947A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000055056A (en) * 1999-02-03 2000-09-05 김형벽 Output voltage compensation system of the VVVF inverter for the line ripple voltage
KR100423992B1 (en) * 2002-01-12 2004-03-22 삼성전자주식회사 Ac ripple current suppress apparatus and method for single phase inverter
KR100468963B1 (en) * 2001-09-14 2005-01-29 엘지전자 주식회사 Apparatus for power factor improvement
KR100855485B1 (en) * 2001-12-24 2008-09-01 엘지디스플레이 주식회사 Backlight Inverter of Liquid Crystal Display

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000055056A (en) * 1999-02-03 2000-09-05 김형벽 Output voltage compensation system of the VVVF inverter for the line ripple voltage
KR100468963B1 (en) * 2001-09-14 2005-01-29 엘지전자 주식회사 Apparatus for power factor improvement
KR100855485B1 (en) * 2001-12-24 2008-09-01 엘지디스플레이 주식회사 Backlight Inverter of Liquid Crystal Display
KR100423992B1 (en) * 2002-01-12 2004-03-22 삼성전자주식회사 Ac ripple current suppress apparatus and method for single phase inverter

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