KR970018975A - 전력변환장치(power converting system) - Google Patents

전력변환장치(power converting system) Download PDF

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Publication number
KR970018975A
KR970018975A KR1019960035751A KR19960035751A KR970018975A KR 970018975 A KR970018975 A KR 970018975A KR 1019960035751 A KR1019960035751 A KR 1019960035751A KR 19960035751 A KR19960035751 A KR 19960035751A KR 970018975 A KR970018975 A KR 970018975A
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KR
South Korea
Prior art keywords
power
converter
load
limit value
current
Prior art date
Application number
KR1019960035751A
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English (en)
Inventor
사토루 이토우
사토루 이나리다
키요시 나카므라
Original Assignee
가나이 쯔도무
가부시끼가이샤 히다찌세이사꾸쇼
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 가나이 쯔도무, 가부시끼가이샤 히다찌세이사꾸쇼 filed Critical 가나이 쯔도무
Publication of KR970018975A publication Critical patent/KR970018975A/ko

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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
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/487—Neutral point clamped inverters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L9/00—Electric propulsion with power supply external to the vehicle
    • B60L9/16—Electric propulsion with power supply external to the vehicle using ac induction motors
    • B60L9/24—Electric propulsion with power supply external to the vehicle using ac induction motors fed from ac supply lines
    • B60L9/28—Electric propulsion with power supply external to the vehicle using ac induction motors fed from ac supply lines polyphase motors
    • 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
    • H02M1/4233—Arrangements for improving power factor of AC input using a bridge converter comprising active switches
    • 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
    • H02M5/453—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 triode or transistor type requiring continuous application of a control signal
    • H02M5/458—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 triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M5/4585—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 triode or transistor type requiring continuous application of a control signal using semiconductor devices only having a rectifier with controlled elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/12—Induction machines

Abstract

교류전원측과 직류부하측에 접속된 PWM 전력변환기와, 변환기의 직류출력전압을 조절하는 전압제어수단과, 변환기의 교류측의 역율을 조절하는 역율제어수단과, 이들전압 및 역을제어수단의 출력을 입력하여 PWM의 변조율과 위상을 지령하는 수단과, 이것들의 지령에 의해 변환기를 제어하는 PWM 변조부를 구비한 전력변환장치에 있어서, 변환기의 제어변수가 변조율에 관련하는 제한치에 가까이 갈 때, 역율제어수단에 역율의 저하를 허용하는 수단과, 변환기의 제어변수가 변환기의 입력전력에 관한 제한치에 가까이 갈때에 직류부하의 전력을 제하는 수단을 설치한다.
전력변환기를 특정한 영역에서 역율의 저하를 허용하여, 또 직류부하의 전력을 제한하는 것에 의해, 전원전압이 변동해도 과전류가 되지 않고, 운전을 계속할 수가 있기 때문에, 종래와 같은 출력전력을 얻는경우, 변환기의 용량을 저감할 수가 있다.

Description

전력변환장치(POWER CONVERTING SYSTEM)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 일실시예를 개시하는 구성도,
제2도는 제1도의 실시예의 전력변환기의 주회로구성을 표시하는 도면.

Claims (5)

  1. 교류전원측에 접속된 인덕턴스요소와 직류부하측에 접속된 콘덴서혹은 배터리를 구비한 교류를 직류로 변환하는 PWM 전력변환기와, 이 변환기에 대하여설치되고 그 직류출력전압을 조절하는 전압제어수단과, 이 변환기에 대하여설치되고 그 교류측의 역율을 조절하는 역율제어 수단과, 이들전압 및 역율제어수단의 출력을 입력하여 PWM의 변조율과 위상을 지령하는 수단과, 이것들의 지령에 의해 상기 변환기를 제어하는 PWM 변조부를 구비한 전력변환장치에 있어서, 상기 변환기의 제어변수가 변조율에 관련하는 제한치에 가까워 졌을 때, 상기 역율제어수단에 역율의 저하를 허용하는 수단과, 상기 변환기의 제어변수가 변환기의 입력전력에 관한 제한치에 가까워졌을때에 직류부하의 전력을 제한하는 수단을 설치한 것을 특징으로 하는 전력변환장치.
  2. 제1항에 있어서, 상기 변환기의 입력전력에 관한 제한치는, 그 변환기의 입력전류상한치인 것을 특징으로 하는 전력변환장치.
  3. 제1항에 있어서, 상기 직류부하의 전력을 제한하는 수단은, 상기 직류부하의 전류를 제한하는 수단인 것을 특징으로 하는 전력변환장치.
  4. 제1항에 있어서, 상기 직류부하의 전력을 제한하는 수단은, 상기 교류전원전압이 낮은 경우에는 역행(力行)전류를 저감하고, 또 상기 교류전원 전압이 높은 경우에는 희생전류를 저감하는 수단인 것을 특징으로 하는 전력변환장치.
  5. 제1항에 있어서, 상기 직류부하의 전력을 제한하는 수단은, 상기 교류전원전압 및 상기 교류전원전류로부터 차차 직류부하전류의 상한치를 산출하여, 이것을 상기 직류부하의 제한치로서 사용하는 것을 특징으로 하는 전력변환장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960035751A 1995-09-08 1996-08-27 전력변환장치(power converting system) KR970018975A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP23099095A JP3232431B2 (ja) 1995-09-08 1995-09-08 電力変換装置
JP95-230990 1995-09-08

Publications (1)

Publication Number Publication Date
KR970018975A true KR970018975A (ko) 1997-04-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960035751A KR970018975A (ko) 1995-09-08 1996-08-27 전력변환장치(power converting system)

Country Status (5)

Country Link
US (1) US5742493A (ko)
EP (1) EP0762623A3 (ko)
JP (1) JP3232431B2 (ko)
KR (1) KR970018975A (ko)
AU (1) AU691761B2 (ko)

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Also Published As

Publication number Publication date
AU691761B2 (en) 1998-05-21
JPH0974766A (ja) 1997-03-18
US5742493A (en) 1998-04-21
JP3232431B2 (ja) 2001-11-26
EP0762623A2 (en) 1997-03-12
AU6425996A (en) 1997-03-27
EP0762623A3 (en) 1998-07-01

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