JPS5612897A - Current controlling device for plural inverters - Google Patents

Current controlling device for plural inverters

Info

Publication number
JPS5612897A
JPS5612897A JP8641679A JP8641679A JPS5612897A JP S5612897 A JPS5612897 A JP S5612897A JP 8641679 A JP8641679 A JP 8641679A JP 8641679 A JP8641679 A JP 8641679A JP S5612897 A JPS5612897 A JP S5612897A
Authority
JP
Japan
Prior art keywords
inverter
voltage
output
current
frequency
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
JP8641679A
Other languages
Japanese (ja)
Other versions
JPS5740752B2 (en
Inventor
Hideki Hayashi
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 JP8641679A priority Critical patent/JPS5612897A/en
Publication of JPS5612897A publication Critical patent/JPS5612897A/en
Publication of JPS5740752B2 publication Critical patent/JPS5740752B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/74—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more ac dynamo-electric motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Control Of Multiple Motors (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To reduce the unbalance over the entire area of variable and constant voltage areas by so driving means for regulating the inverter output voltage in the variable voltage area and the slip frequency in the constant voltage area that a plurality of inverter output current may coincide with the current command. CONSTITUTION:When both inverters 4, 4' is in multiple pulse mode state, current limiting amplifiers 12, 12' receive common current command IR and the outputs of current detectors 9, 9', and the inverter 4 is controlled in frequency by the sum of the first common slip frequency command FSI and the mean value of the frequencies of two motors. Since the inverter 4' is applied in frequency with the output of a voltage controlled oscillator 19 as a synchronous pulse through a contact 29 to a voltage controlled oscillator 19', it is controlled under the same condition as the inverter 4. In this case since a phase shifter 30 is added thereto and the output pulse of the oscillator 19' is shifted at an electric angle theta, the waveform of the line voltage Vab' at the output of the inverter 4' is shifted at theta/6. In this manner it can reduce the unbalance over the entire area.
JP8641679A 1979-07-10 1979-07-10 Current controlling device for plural inverters Granted JPS5612897A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8641679A JPS5612897A (en) 1979-07-10 1979-07-10 Current controlling device for plural inverters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8641679A JPS5612897A (en) 1979-07-10 1979-07-10 Current controlling device for plural inverters

Publications (2)

Publication Number Publication Date
JPS5612897A true JPS5612897A (en) 1981-02-07
JPS5740752B2 JPS5740752B2 (en) 1982-08-30

Family

ID=13886263

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8641679A Granted JPS5612897A (en) 1979-07-10 1979-07-10 Current controlling device for plural inverters

Country Status (1)

Country Link
JP (1) JPS5612897A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018078697A (en) * 2016-11-08 2018-05-17 東洋電機製造株式会社 Power conversion equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5166432A (en) * 1974-12-05 1976-06-09 Tokyo Shibaura Electric Co Judodendokino sokudoseigyohoshiki

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5166432A (en) * 1974-12-05 1976-06-09 Tokyo Shibaura Electric Co Judodendokino sokudoseigyohoshiki

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018078697A (en) * 2016-11-08 2018-05-17 東洋電機製造株式会社 Power conversion equipment

Also Published As

Publication number Publication date
JPS5740752B2 (en) 1982-08-30

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