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JPS6481625A - Parallel operation of uninterruptible power source equipment - Google Patents

Parallel operation of uninterruptible power source equipment

Info

Publication number
JPS6481625A
JPS6481625A JP62238155A JP23815587A JPS6481625A JP S6481625 A JPS6481625 A JP S6481625A JP 62238155 A JP62238155 A JP 62238155A JP 23815587 A JP23815587 A JP 23815587A JP S6481625 A JPS6481625 A JP S6481625A
Authority
JP
Japan
Prior art keywords
power source
frequency
source equipment
uninterruptible power
uninterruptible
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.)
Pending
Application number
JP62238155A
Other languages
Japanese (ja)
Inventor
Hiroyuki Maruyama
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.)
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Corp
Meidensha 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 Meidensha Corp, Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Corp
Priority to JP62238155A priority Critical patent/JPS6481625A/en
Publication of JPS6481625A publication Critical patent/JPS6481625A/en
Pending legal-status Critical Current

Links

Landscapes

  • Stand-By Power Supply Arrangements (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

PURPOSE:To bear effective power and to achieve synchronization during parallel operation, by correcting an effective power detection signal of an uninterruptible power source equipment based on an differential component between an inverter output frequency detection signal of the uninterruptible power source equipment and a commercial power source frequency detection signal, thereby controlling the frequency. CONSTITUTION:Inverter output frequency is regulated by a voltage V3 corresponding to an effective power in order to bear effective power. The voltage V3 is corrected through a correction circuit 4 based on a differential signal V1-V2 provided from a matching circuit 3. Corrected signal V0 is converted through a V/F converter 5 and employed for inverter frequency control of an uninterruptible power source equipment. Outputs from F/V converters 1, 2 are equalized, and inverter frequency (f2) is synchronized with commercial power source frequency (f1). Consequently, uninterruptible switching to commercial power source can be achieved upon failure of uninterruptible power source equipment.
JP62238155A 1987-09-22 1987-09-22 Parallel operation of uninterruptible power source equipment Pending JPS6481625A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62238155A JPS6481625A (en) 1987-09-22 1987-09-22 Parallel operation of uninterruptible power source equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62238155A JPS6481625A (en) 1987-09-22 1987-09-22 Parallel operation of uninterruptible power source equipment

Publications (1)

Publication Number Publication Date
JPS6481625A true JPS6481625A (en) 1989-03-27

Family

ID=17026010

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62238155A Pending JPS6481625A (en) 1987-09-22 1987-09-22 Parallel operation of uninterruptible power source equipment

Country Status (1)

Country Link
JP (1) JPS6481625A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4993886A (en) * 1987-07-01 1991-02-19 Buehler Ag Air regulating unit, process for regulating air flow, and use of a lifting body in such a system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4993886A (en) * 1987-07-01 1991-02-19 Buehler Ag Air regulating unit, process for regulating air flow, and use of a lifting body in such a system

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