JPS57101574A - Pwm inverter - Google Patents

Pwm inverter

Info

Publication number
JPS57101574A
JPS57101574A JP55175843A JP17584380A JPS57101574A JP S57101574 A JPS57101574 A JP S57101574A JP 55175843 A JP55175843 A JP 55175843A JP 17584380 A JP17584380 A JP 17584380A JP S57101574 A JPS57101574 A JP S57101574A
Authority
JP
Japan
Prior art keywords
terminals
reactors
series
current
phase
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP55175843A
Other languages
Japanese (ja)
Other versions
JPS6350957B2 (en
Inventor
Nagahiko Nagasaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yaskawa Electric Corp
Original Assignee
Yaskawa Electric Manufacturing Co Ltd
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 Yaskawa Electric Manufacturing Co Ltd filed Critical Yaskawa Electric Manufacturing Co Ltd
Priority to JP55175843A priority Critical patent/JPS57101574A/en
Publication of JPS57101574A publication Critical patent/JPS57101574A/en
Publication of JPS6350957B2 publication Critical patent/JPS6350957B2/ja
Granted legal-status Critical Current

Links

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
    • H02M7/53—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
    • H02M7/5395—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 by pulse-width modulation

Landscapes

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

Abstract

PURPOSE:To enhance the reliability of a PWM inverter by connecting in series two controllable power sources via coupling reactors and providing terminals connecting both terminals of series circuit and 1-phase output terminals of neutral points of the reactors in number corresponding to the number of phases. CONSTITUTION:DC converters SPC1-SPC6 are connected in series through coupling reactors L14, L36, L52 for two, terminals A connected at both terminals of the respective series circuits and the neutral points B of the reactors are used as the output terminal of one phase, and the output terminals of the respective phases are connected to 3-phase motor M of six leads. When the choppers Ch1, Ch2 of the converters of the respective phases become impossible to be controlled in ON state during its operation, a current circulating the annular circuits of the respective phases increases, allowing the defect current to be detected by a current detector CT to operate a high speed protecting breaker HS, thereby breaking the defect current to prevent the burnout accident.
JP55175843A 1980-12-15 1980-12-15 Pwm inverter Granted JPS57101574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55175843A JPS57101574A (en) 1980-12-15 1980-12-15 Pwm inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55175843A JPS57101574A (en) 1980-12-15 1980-12-15 Pwm inverter

Publications (2)

Publication Number Publication Date
JPS57101574A true JPS57101574A (en) 1982-06-24
JPS6350957B2 JPS6350957B2 (en) 1988-10-12

Family

ID=16003183

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55175843A Granted JPS57101574A (en) 1980-12-15 1980-12-15 Pwm inverter

Country Status (1)

Country Link
JP (1) JPS57101574A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62230369A (en) * 1986-02-01 1987-10-09 レイボルト　アクチ―エンゲゼルシャフト Dc/ac converter with asymmetrical half-wave brigde circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62230369A (en) * 1986-02-01 1987-10-09 レイボルト　アクチ―エンゲゼルシャフト Dc/ac converter with asymmetrical half-wave brigde circuit

Also Published As

Publication number Publication date
JPS6350957B2 (en) 1988-10-12

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