JPS5612865A - Synchronously operating device for pwm inverter - Google Patents

Synchronously operating device for pwm inverter

Info

Publication number
JPS5612865A
JPS5612865A JP8565679A JP8565679A JPS5612865A JP S5612865 A JPS5612865 A JP S5612865A JP 8565679 A JP8565679 A JP 8565679A JP 8565679 A JP8565679 A JP 8565679A JP S5612865 A JPS5612865 A JP S5612865A
Authority
JP
Japan
Prior art keywords
chopping
conductor
switch
command
conductors
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
JP8565679A
Other languages
Japanese (ja)
Other versions
JPS5917638B2 (en
Inventor
Takashi Sano
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.)
Toyo Electric Manufacturing Ltd
Original Assignee
Toyo Electric Manufacturing 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 Toyo Electric Manufacturing Ltd filed Critical Toyo Electric Manufacturing Ltd
Priority to JP54085656A priority Critical patent/JPS5917638B2/en
Publication of JPS5612865A publication Critical patent/JPS5612865A/en
Publication of JPS5917638B2 publication Critical patent/JPS5917638B2/en
Expired 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Multiple Motors (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To remove high harmonic wave components of DC power supply side and contrive the alleviation of an induction failure by providing a magnification switching means and simultaneously switching the magnification of triangular wave signal frequencies for instructing the number of chopping of a plurality of inverters. CONSTITUTION:Respective AC motors 10 are sunchronously operated with equal load by providing phase difference of 30 deg. at the output voltages of respective inverters 8 and commonly using frequency command and current command. A chopping number switch 15 calculates motor driving frequency and voltage signals to produce switching commands from one to a conductor 106 and the other to a conductor 107. A chopping number simultaneous switch 16 receives chopping number switching commands from the conductors 106 and 107 of the switch 15 and produces a command for selecting predetermined simultaneous signal in the conductors 103a- 103c to respective triangular wave generator 5 from the conductor 108. In this manner it can alleviate the induction failure.
JP54085656A 1979-07-06 1979-07-06 PWM inverter synchronous operation device Expired JPS5917638B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54085656A JPS5917638B2 (en) 1979-07-06 1979-07-06 PWM inverter synchronous operation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54085656A JPS5917638B2 (en) 1979-07-06 1979-07-06 PWM inverter synchronous operation device

Publications (2)

Publication Number Publication Date
JPS5612865A true JPS5612865A (en) 1981-02-07
JPS5917638B2 JPS5917638B2 (en) 1984-04-23

Family

ID=13864860

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54085656A Expired JPS5917638B2 (en) 1979-07-06 1979-07-06 PWM inverter synchronous operation device

Country Status (1)

Country Link
JP (1) JPS5917638B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5833998A (en) * 1981-08-21 1983-02-28 Hitachi Ltd Control system of induction motor by pulse width modulation inverter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5833998A (en) * 1981-08-21 1983-02-28 Hitachi Ltd Control system of induction motor by pulse width modulation inverter

Also Published As

Publication number Publication date
JPS5917638B2 (en) 1984-04-23

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