JPS5610080A - Protecting system for parallel operation of inverter - Google Patents

Protecting system for parallel operation of inverter

Info

Publication number
JPS5610080A
JPS5610080A JP8472279A JP8472279A JPS5610080A JP S5610080 A JPS5610080 A JP S5610080A JP 8472279 A JP8472279 A JP 8472279A JP 8472279 A JP8472279 A JP 8472279A JP S5610080 A JPS5610080 A JP S5610080A
Authority
JP
Japan
Prior art keywords
inverter
current
detector
parallel
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.)
Granted
Application number
JP8472279A
Other languages
Japanese (ja)
Other versions
JPS5931309B2 (en
Inventor
Toshinobu Nozaki
Shogo Sugawara
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 JP54084722A priority Critical patent/JPS5931309B2/en
Publication of JPS5610080A publication Critical patent/JPS5610080A/en
Publication of JPS5931309B2 publication Critical patent/JPS5931309B2/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)
  • Protection Of Static Devices (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To protect the inveter by separating it from parallel operation when a detector sensing an inverter's abnormal operation and a sensor which works simultaneously with the indication of output current's unbalanced volume beyond the prescribed value, concurrently work. CONSTITUTION:The inverters 1, 2 converts AC current 3 to DC current by means of a power rectifier 11 and supplies AC current to a load 4 through a inverter 12. The output of an unbalance detector 5 provided between the inverters 1, 2 is applied to a level detector 18. At the same time, the inverter 12's abnormality is sensed by means of a pulse-width abnormality detector 17. These outputs are input to an AND circuit 19 and then to an interrupter 14 which separates the inveters 1, 2 from parallel-operation. Consequently, it is possible to separate the faulty inverter from parallel-operation when the detectors and 17 concurrently work, thus eliminating erroneous operation and continuing steady power supply to the load.
JP54084722A 1979-07-03 1979-07-03 Parallel operation protection method for inverter equipment Expired JPS5931309B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54084722A JPS5931309B2 (en) 1979-07-03 1979-07-03 Parallel operation protection method for inverter equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54084722A JPS5931309B2 (en) 1979-07-03 1979-07-03 Parallel operation protection method for inverter equipment

Publications (2)

Publication Number Publication Date
JPS5610080A true JPS5610080A (en) 1981-02-02
JPS5931309B2 JPS5931309B2 (en) 1984-08-01

Family

ID=13838567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54084722A Expired JPS5931309B2 (en) 1979-07-03 1979-07-03 Parallel operation protection method for inverter equipment

Country Status (1)

Country Link
JP (1) JPS5931309B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63190100A (en) * 1986-10-14 1988-08-05 アメリカン・サイアナミド・カンパニー Fibrilated fiber and article produced therefrom
US5325285A (en) * 1991-08-21 1994-06-28 Mitsubishi Denki Kabushiki Kaisha Parallel running control apparatus for PWM inverters
US5390102A (en) * 1992-06-09 1995-02-14 Mitsubishi Denki Kabushiki Kaisha Parallel running control apparatus for PWM inverters
US5436823A (en) * 1992-06-24 1995-07-25 Mitsubishi Denki Kabushiki Kaisha Parallel operation controller for power converters

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63190100A (en) * 1986-10-14 1988-08-05 アメリカン・サイアナミド・カンパニー Fibrilated fiber and article produced therefrom
US5325285A (en) * 1991-08-21 1994-06-28 Mitsubishi Denki Kabushiki Kaisha Parallel running control apparatus for PWM inverters
US5390102A (en) * 1992-06-09 1995-02-14 Mitsubishi Denki Kabushiki Kaisha Parallel running control apparatus for PWM inverters
US5436823A (en) * 1992-06-24 1995-07-25 Mitsubishi Denki Kabushiki Kaisha Parallel operation controller for power converters

Also Published As

Publication number Publication date
JPS5931309B2 (en) 1984-08-01

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