JPS563578A - Inverter device - Google Patents

Inverter device

Info

Publication number
JPS563578A
JPS563578A JP7681479A JP7681479A JPS563578A JP S563578 A JPS563578 A JP S563578A JP 7681479 A JP7681479 A JP 7681479A JP 7681479 A JP7681479 A JP 7681479A JP S563578 A JPS563578 A JP S563578A
Authority
JP
Japan
Prior art keywords
inverter
circuits
output voltage
phase
load
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
JP7681479A
Other languages
Japanese (ja)
Other versions
JPS5931308B2 (en
Inventor
Kozo Watanabe
Kiichi Tokunaga
Hisao Amano
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP54076814A priority Critical patent/JPS5931308B2/en
Publication of JPS563578A publication Critical patent/JPS563578A/en
Publication of JPS5931308B2 publication Critical patent/JPS5931308B2/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)
  • Supply And Distribution Of Alternating Current (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To enable parallel closing to be executed by making output voltage difference zero irrespective of load condition, by controlling output voltage and phase of an inverter prior to parallel closing in accordance with load condition of the inverter in on-load operation. CONSTITUTION:When an inverter 101 is in on-load operation and an inverter 102 is in non-load operation, the inverter 101's switch 22 becomes ON and a switch 22' becomes OFF. An output of a current detector 21 of the inverter 101 in this condition is impressed onto differential voltage detecting circuits 11 and 11' as an equally detected current value. These circuits 11 and 11' are provided with not only current detecting function but also current deviation detecting function, the control signal from these circuits controls phase through frequency control circuits 13 and 13' and also controls output voltage through voltage control circuits 14 and 14'. By using this mechanism, it is possible, irrespective of load condition of the inverter device, to execute parallel closing of the inverter at the time when the output voltage and the phase agree with each other most appropriately.
JP54076814A 1979-06-20 1979-06-20 Inverter device Expired JPS5931308B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54076814A JPS5931308B2 (en) 1979-06-20 1979-06-20 Inverter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54076814A JPS5931308B2 (en) 1979-06-20 1979-06-20 Inverter device

Publications (2)

Publication Number Publication Date
JPS563578A true JPS563578A (en) 1981-01-14
JPS5931308B2 JPS5931308B2 (en) 1984-08-01

Family

ID=13616132

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54076814A Expired JPS5931308B2 (en) 1979-06-20 1979-06-20 Inverter device

Country Status (1)

Country Link
JP (1) JPS5931308B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58116073A (en) * 1981-12-28 1983-07-11 Toshiba Corp Starting method for inverter operated in parallel
JPS58148675A (en) * 1982-02-26 1983-09-03 Toshiba Corp Power converter
JPS61157235A (en) * 1984-12-28 1986-07-16 三菱電機株式会社 Parallel operating device for inverter
JPH03135339A (en) * 1989-10-17 1991-06-10 Takaoka Electric Mfg Co Ltd System composition and method for switching uninterruptible power system of different power system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58116073A (en) * 1981-12-28 1983-07-11 Toshiba Corp Starting method for inverter operated in parallel
JPS58148675A (en) * 1982-02-26 1983-09-03 Toshiba Corp Power converter
JPH0432633B2 (en) * 1982-02-26 1992-05-29
JPS61157235A (en) * 1984-12-28 1986-07-16 三菱電機株式会社 Parallel operating device for inverter
JPH03135339A (en) * 1989-10-17 1991-06-10 Takaoka Electric Mfg Co Ltd System composition and method for switching uninterruptible power system of different power system

Also Published As

Publication number Publication date
JPS5931308B2 (en) 1984-08-01

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