JPS5532459A - Static ac power supply device - Google Patents

Static ac power supply device

Info

Publication number
JPS5532459A
JPS5532459A JP10487178A JP10487178A JPS5532459A JP S5532459 A JPS5532459 A JP S5532459A JP 10487178 A JP10487178 A JP 10487178A JP 10487178 A JP10487178 A JP 10487178A JP S5532459 A JPS5532459 A JP S5532459A
Authority
JP
Japan
Prior art keywords
voltage
effective
current
controlled operation
inverters
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
JP10487178A
Other languages
Japanese (ja)
Inventor
Kaoru Matsuzaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10487178A priority Critical patent/JPS5532459A/en
Publication of JPS5532459A publication Critical patent/JPS5532459A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Electrical Variables (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE: To prevent the failure in the commutation of inverters when a short circuit accident occurs on the side of a load, by equally sharing effective and ineffective power both in voltage-controlled operation in and current-controlled operation.
CONSTITUTION: Each of the inverters, which are operated in parallel with each other, is provided with a common reference oscillator 56, a voltage phase oscillator 29, comparators 27, 33 which generate signals corresponding to the deviations in the effective and ineffective power, and a timing circuit 14 which produces an output signal for a predetermined time if the output current of the inverter exceeds a prescribed level. A voltage control oscillator 29 is regulated by the effective power deviation signal. The ineffective power deviation signal is applied as an interruption signal to a voltage control loop and a current control loop. The outputs of a voltage and a current control loop amplifiers 9, 54 are reduced to prescribed levels by the output signal of the timing circuit. This results in equally sharing the effective and the ineffective power both in the voltage-controlled operation and in the current- controlled operation. Thus, the operation of the inverters can be normally resumed as soon as the short circuit accident on the side of the load is eliminated.
COPYRIGHT: (C)1980,JPO&Japio
JP10487178A 1978-08-30 1978-08-30 Static ac power supply device Pending JPS5532459A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10487178A JPS5532459A (en) 1978-08-30 1978-08-30 Static ac power supply device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10487178A JPS5532459A (en) 1978-08-30 1978-08-30 Static ac power supply device

Publications (1)

Publication Number Publication Date
JPS5532459A true JPS5532459A (en) 1980-03-07

Family

ID=14392277

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10487178A Pending JPS5532459A (en) 1978-08-30 1978-08-30 Static ac power supply device

Country Status (1)

Country Link
JP (1) JPS5532459A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61164433A (en) * 1985-01-11 1986-07-25 株式会社明電舎 Method and device for synchronously changing over inverter and commercial power supply

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61164433A (en) * 1985-01-11 1986-07-25 株式会社明電舎 Method and device for synchronously changing over inverter and commercial power supply

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