KR960012679A - PWM converter - Google Patents

PWM converter Download PDF

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Publication number
KR960012679A
KR960012679A KR1019950031578A KR19950031578A KR960012679A KR 960012679 A KR960012679 A KR 960012679A KR 1019950031578 A KR1019950031578 A KR 1019950031578A KR 19950031578 A KR19950031578 A KR 19950031578A KR 960012679 A KR960012679 A KR 960012679A
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KR
South Korea
Prior art keywords
pwm converter
converter
carrier signal
inverter circuit
power
Prior art date
Application number
KR1019950031578A
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Korean (ko)
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KR100386910B1 (en
Inventor
준 히로세
Original Assignee
나카자토 요시히코
후지덴키 가부시키가이샤
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Publication of KR960012679A publication Critical patent/KR960012679A/en
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Publication of KR100386910B1 publication Critical patent/KR100386910B1/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
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/125—Avoiding or suppressing excessive transient voltages or currents
    • 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
    • H02M7/53—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 triode or transistor type requiring continuous application of a control signal
    • H02M7/537—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 triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/539—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 triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form 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
    • H02M1/0003—Details of control, feedback or regulation circuits

Landscapes

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

Abstract

PWM 컨버터가 발생하는 공통 모드 전압을 보상하고, 누설전류 검출요소가 불필요한 동작을 하지 않는 PWM컨버터를 제공한다.It provides a PWM converter that compensates for the common-mode voltage generated by the PWM converter and prevents unnecessary operation of the leakage current detector.

입력 리액터Zc와 접지 콘덴서Cn로구성되는 필터 F와, 스위칭 소자(31~36)와 평활 콘덴서(3B)로 구성되는 직류 전력변환부(3)와, 스위칭 소자(31~36)의 제어율 λ를 제어하는 컨버터 지령치 발생부(4A)와, 그것을 변조하는 반송파 신호 Vc를 발생시키는 반송파 신호발생부(4B)와 컨버터 구동회로(4D)로 구비하며, 교류 전원(1)으로부터 교류 전력의 공급을 받아 직류 전력으로 변환하는 PWM컨버터(2)에 있어서, 직류 전력 변환부(3)에 하나의 아암쌍의 인버터 회로(5)를 설치하고, 이 인버터 회로(5)는 PWM컨버터(2)가 발생하는 공통모드 전압 Vn과 역위상의 보상 전압을 출력하며, 이 보상전압을 통하여 기기 접지를 행한다.Filter F composed of the input reactor Zc and ground capacitor Cn, DC power converter 3 composed of switching elements 31 to 36 and smoothing capacitor 3B, and control ratio? Of switching elements 31 to 36. The converter command value generator 4A to control, the carrier signal generator 4B for generating the carrier signal Vc which modulates it, and the converter drive circuit 4D are provided, and it receives the AC power supply from the AC power supply 1, and is supplied. In the PWM converter 2 for converting to DC power, an inverter circuit 5 of one arm pair is provided in the DC power converter 3, and the inverter circuit 5 generates a PWM converter 2. The compensating voltage of the common mode voltage Vn and the reverse phase is outputted, and the device grounding is performed through this compensating voltage.

Description

PWM 컨버터PWM converter

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

제1도는 본 발명에 의한 일실시예의 PWM컨버터의 기능을 나타내는 블록도,1 is a block diagram showing the function of a PWM converter according to an embodiment of the present invention;

제2도는 다른 실시예로서 보다 고차의 주파수 성분 공통 모드 전압을 상쇄하는 PWM컨버터의 기능을 나타내는 블록도,2 is a block diagram showing a function of a PWM converter for canceling a higher frequency component common mode voltage as another embodiment.

제3도는 상용 전원의 불평형 전압을 포함하여 대접지 전위를 상쇄하는 PWM컨버터의 기능을 나타내는 블록도,3 is a block diagram showing a function of a PWM converter that cancels a grounding potential including an unbalanced voltage of a commercial power supply;

제4도는 PWM컨버터의 제어율을 포함하여 대접지 전위를 상쇄하는 PWM컨버터의 기능을 나타내는 블록도.4 is a block diagram showing the function of the PWM converter to cancel the ground potential, including the control rate of the PWM converter.

Claims (6)

입력 리액터와 접지 콘덴서로 이루어지는 필터와, 스위칭 소자와 평활 콘덴서로 이루어지는 직류 전력 변환부와 상기 스위칭 소자의 제어율을 제어하는 컨버터 지령치 발생부와, 상기 컨버터 지령치를 변조하는 반송파 신호를 발생하는 반송파 신호 발생부와, 컨버터 구동회로를 구비하며, 교류 전원으로부터 교류 전력을 공급받아 직류 전력으로 변환하는 PWM컨버터에 있어서, 직류 전력 변환부에 하나의 아암쌍의 인버터 회로를 설치하고, 이 인버터 회로는 PWM컨버터가 발생하는 공통 모드 전압과 역위상의 보상 전압을 출력하여 이 보상 전압을 통하여 기기 접지하는 것을 특징으로 하는 PWM컨버터.A filter comprising an input reactor and a ground capacitor, a DC power converter comprising a switching element and a smoothing capacitor, a converter command value generator for controlling the control rate of the switching element, and a carrier signal generation for generating a carrier signal modulating the converter command value A PWM converter having a unit and a converter driving circuit, wherein the PWM converter receives AC power from an AC power source and converts the power into DC power. The inverter circuit includes an arm pair of inverter circuits. The inverter circuit includes a PWM converter. PWM converter, characterized in that for outputting the common-mode voltage and the anti-phase compensation voltage generated by the ground through the compensation voltage. 제1항에 있어서, 인버터 회로의 구동신호는 PWM컨버터의 반송파 신호를 이용하는 것을 특징으로 하는 PWM컨버터.The PWM converter according to claim 1, wherein the drive signal of the inverter circuit uses a carrier signal of a PWM converter. 제1항에 있어서, 인버터 회로의 구동신호는 PWM컨버터의 반송파 신호를 지령치로 하고, 고주파 반송파 신호에 의해 변조의 행하는 것을 특징으로 하는 PWM컨버터.The PWM converter according to claim 1, wherein the drive signal of the inverter circuit uses a carrier signal of a PWM converter as a command value and modulates the signal by a high frequency carrier signal. 제2항 또는 제3항에 있어서, PWM컨버터가 3상 입력인 경우, 인버터 회로의 구동신호는 교류 전원의 중성점 전압을 검출하여 이 중성점 전압을 PWM컨버터의 반송파 신호의 지령치를 가하는 것을 특징으로 하는 PWM컨버터.The drive signal of the inverter circuit detects the neutral point voltage of an AC power supply, and applies this neutral point voltage to a command value of a carrier signal of the PWM converter, when the PWM converter is a three-phase input. PWM converter. 제2항 또는 제3항에 있어서, 인버터 회로의 구동신호는 PWM 컨버터의 반송파신호에 PWM컨버터의 제어율의 역수를 곱한 값을 지령치로 하는 것을 특징으로 하는 PWM컨버터4. The PWM converter according to claim 2 or 3, wherein the drive signal of the inverter circuit is a command value obtained by multiplying the carrier signal of the PWM converter by the inverse of the control rate of the PWM converter. 제4항에 있어서, 인버터 회로의 구동신호는 PWM컨버터의 반송파 신호에 PWM컨버터의 제어율의 역수를 곱한 값을 지령치로 하는 것을 특징으로 하는 PWM컨버터.5. The PWM converter according to claim 4, wherein the drive signal of the inverter circuit is a command value obtained by multiplying the carrier signal of the PWM converter by the inverse of the control rate of the PWM converter. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950031578A 1994-09-27 1995-09-25 PWM converter KR100386910B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP23088694A JP3246224B2 (en) 1994-09-27 1994-09-27 PWM converter
JP94-230886 1994-09-27

Publications (2)

Publication Number Publication Date
KR960012679A true KR960012679A (en) 1996-04-20
KR100386910B1 KR100386910B1 (en) 2003-09-19

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CN (1) CN1062991C (en)

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CN107968435B (en) * 2017-12-15 2022-01-25 远景能源有限公司 Common-mode voltage suppression method for wind power generation double-winding generator system
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Publication number Publication date
JP3246224B2 (en) 2002-01-15
CN1126903A (en) 1996-07-17
KR100386910B1 (en) 2003-09-19
JPH0898536A (en) 1996-04-12
CN1062991C (en) 2001-03-07

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