JPS5534889A - Protecting method of parallel inverter system - Google Patents

Protecting method of parallel inverter system

Info

Publication number
JPS5534889A
JPS5534889A JP10889078A JP10889078A JPS5534889A JP S5534889 A JPS5534889 A JP S5534889A JP 10889078 A JP10889078 A JP 10889078A JP 10889078 A JP10889078 A JP 10889078A JP S5534889 A JPS5534889 A JP S5534889A
Authority
JP
Japan
Prior art keywords
voltage
inverter
malfunction
detector
series
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
JP10889078A
Other languages
Japanese (ja)
Other versions
JPS5854746B2 (en
Inventor
Osamu Wada
Kiyoshi Ueda
Seii Imasaka
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.)
Japan Storage Battery Co Ltd
Original Assignee
Japan Storage Battery 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 Japan Storage Battery Co Ltd filed Critical Japan Storage Battery Co Ltd
Priority to JP53108890A priority Critical patent/JPS5854746B2/en
Publication of JPS5534889A publication Critical patent/JPS5534889A/en
Publication of JPS5854746B2 publication Critical patent/JPS5854746B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Protection Of Static Devices (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE: To prevent a parallel inverter system from becoming down by providing a voltage malfunction detector at a filter reactor connected in series with an inverter and disconnecting an inverter occurring voltage malfunction from a parallel bus line by the operation of the detector.
CONSTITUTION: Voltage malfuction detectors 14, 24 for detecting the voltage malfunctions of inverters are provided at respective filter reactors 12, 22 connected in series with the AC sides of the respective inverters 11, 21 to thereby break interrupters 13, 23 so as to disconnect an inverter occurring voltage malfunction from a parallel bus line 3. The voltage malfunction detector operates when it detects abnormally low or high voltage, but does not operate when depending the output voltage to protect the device at overload or shorting times. Thus, the malfunctioned inverter can be disconnected before a system down occurs and prevent an erroneous operation occurred at depending time.
COPYRIGHT: (C)1980,JPO&Japio
JP53108890A 1978-09-04 1978-09-04 How to protect parallel inverter systems Expired JPS5854746B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53108890A JPS5854746B2 (en) 1978-09-04 1978-09-04 How to protect parallel inverter systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53108890A JPS5854746B2 (en) 1978-09-04 1978-09-04 How to protect parallel inverter systems

Publications (2)

Publication Number Publication Date
JPS5534889A true JPS5534889A (en) 1980-03-11
JPS5854746B2 JPS5854746B2 (en) 1983-12-06

Family

ID=14496189

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53108890A Expired JPS5854746B2 (en) 1978-09-04 1978-09-04 How to protect parallel inverter systems

Country Status (1)

Country Link
JP (1) JPS5854746B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6055882A (en) * 1983-09-06 1985-04-01 Toshiba Corp Controller of ac motor
JPS61203822A (en) * 1985-03-07 1986-09-09 富士電機株式会社 Protection system for dc power distribution type inverter
JPS61159218U (en) * 1985-03-26 1986-10-02
JPH027831A (en) * 1988-06-27 1990-01-11 Fuji Electric Co Ltd Protective circuit for inverter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62170590U (en) * 1986-04-21 1987-10-29
JPS6418360U (en) * 1987-07-23 1989-01-30

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6055882A (en) * 1983-09-06 1985-04-01 Toshiba Corp Controller of ac motor
JPS61203822A (en) * 1985-03-07 1986-09-09 富士電機株式会社 Protection system for dc power distribution type inverter
JPS61159218U (en) * 1985-03-26 1986-10-02
JPH027831A (en) * 1988-06-27 1990-01-11 Fuji Electric Co Ltd Protective circuit for inverter

Also Published As

Publication number Publication date
JPS5854746B2 (en) 1983-12-06

Similar Documents

Publication Publication Date Title
JPS5534889A (en) Protecting method of parallel inverter system
EP0319151A3 (en) Circuit to prevent uncontrolled tripping of a protective relay
CN106546796A (en) A kind of voltage detecting circuit
JPS534829A (en) Static uninterruptible power circuit
JPH08126338A (en) Solar power system
EP4734315A1 (en) Photovoltaic power generation system and control method thereof
JPS5610080A (en) Protecting system for parallel operation of inverter
JPH07106027B2 (en) Inverter device protection circuit
JPS5659328A (en) Abnormality detection circuit for electric power source
JPS528449A (en) Direction comparison relay device
JPS54162149A (en) Neutral grounding monitor of generator
SU758358A1 (en) RELAY DIRECTION OF POWER OF REVERSE OR ZERO SEQUENCE 1
JPH01259714A (en) Protective device for power converter
JPS52140843A (en) System for supervising current differential bus bar protection relay suppressing circuit
JPS57136185A (en) Electronic watch with auxiliary cell
JPS54120841A (en) Ac power unit
JPS5449549A (en) Field overvoltage protecting device for use in synchronous machine
JPS5288747A (en) Protecting system for inverter
NAGANO Overload protection system for power inverter[Patent]
JPS5463243A (en) Transformer protection relay
JPS5541562A (en) Fault recovery system
JPH05260666A (en) Reverse charge preventing system
JPS5445765A (en) Protection circuit of transformer
JPS52145728A (en) Protection method of parallel inverter
JPS5468950A (en) Short-circuit protective relay system