JPS6423766A - Voltage regulating circuit for power converter - Google Patents

Voltage regulating circuit for power converter

Info

Publication number
JPS6423766A
JPS6423766A JP62177584A JP17758487A JPS6423766A JP S6423766 A JPS6423766 A JP S6423766A JP 62177584 A JP62177584 A JP 62177584A JP 17758487 A JP17758487 A JP 17758487A JP S6423766 A JPS6423766 A JP S6423766A
Authority
JP
Japan
Prior art keywords
voltage
voltage value
input
value
inverter
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
JP62177584A
Other languages
Japanese (ja)
Other versions
JPH0789745B2 (en
Inventor
Arata Sakuma
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP62177584A priority Critical patent/JPH0789745B2/en
Publication of JPS6423766A publication Critical patent/JPS6423766A/en
Publication of JPH0789745B2 publication Critical patent/JPH0789745B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Inverter Devices (AREA)

Abstract

PURPOSE:To prevent excess current from being generated, by providing the input of the reversed polarity of a actual voltage value to a voltage regulating means, when power source side voltage is lowered to come to a specified value or less, with a voltage controlling loop due to proportional integration arithmetic units. CONSTITUTION:An inverter unit is composed of a rectifier 3, a smoothing capacitor 4, and a transistor inverter 5, and the AC power of desired voltage and frequency is fed to a load 6. To proportional integration arithmetic units 13A-13C, the input of a deviation between an actual voltage value from a potential transformer 11 and a desired voltage value from a voltage setting unit 12 is provided, and a voltage regulator 13 is composed, and control signal is applied to the inverter 5 via a base driving circuit 14. In this case, a signal switching circuit 22 and a polarity reversing circuit 23 are arranged. In this state, when it is detected that an AC power source 2 is of specified voltage or lower, then the desired voltage value from the voltage setting unit 12 is interrupted, and the input of the actual voltage value of reversed polarity from the polarity reversing circuit 23 is provided, and overvoltage at the time of voltage recovery can be avoided.
JP62177584A 1987-07-16 1987-07-16 Voltage control circuit for power converter Expired - Lifetime JPH0789745B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62177584A JPH0789745B2 (en) 1987-07-16 1987-07-16 Voltage control circuit for power converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62177584A JPH0789745B2 (en) 1987-07-16 1987-07-16 Voltage control circuit for power converter

Publications (2)

Publication Number Publication Date
JPS6423766A true JPS6423766A (en) 1989-01-26
JPH0789745B2 JPH0789745B2 (en) 1995-09-27

Family

ID=16033532

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62177584A Expired - Lifetime JPH0789745B2 (en) 1987-07-16 1987-07-16 Voltage control circuit for power converter

Country Status (1)

Country Link
JP (1) JPH0789745B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5597194A (en) * 1979-01-18 1980-07-24 Toshiba Corp Controlling system for power converter
JPS60119896U (en) * 1984-01-23 1985-08-13 株式会社明電舎 Inverter voltage control circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5597194A (en) * 1979-01-18 1980-07-24 Toshiba Corp Controlling system for power converter
JPS60119896U (en) * 1984-01-23 1985-08-13 株式会社明電舎 Inverter voltage control circuit

Also Published As

Publication number Publication date
JPH0789745B2 (en) 1995-09-27

Similar Documents

Publication Publication Date Title
DK0792483T3 (en) Transmission line power regulator with a continuously controllable voltage source responsive to active power demand and reactive power demand
JPS6471575A (en) Method for restraining and controlling over welding current
EP0450744A3 (en) Apparatus and method for controlling power supply to an inductive load, such as a furnace
DE3472741D1 (en) Electronically switched power supply with transformer choke
CA2006426A1 (en) Control circuit for regulating current flow through a load
GB1449211A (en) Inverter circuitry
JPS6423766A (en) Voltage regulating circuit for power converter
JPS56155420A (en) Alternating current regulated power supply device
JPS6423768A (en) Dc and ac power circuit unit
JPS6345913B2 (en)
JP2715478B2 (en) AC arc furnace
JPS55147983A (en) Inverter device
KR890000198A (en) Control method and apparatus of power supply for arc welding
JPS61164464A (en) Constant-current control circuit of dc power source
SU636593A1 (en) Dc voltage stabilizer
JPS648837A (en) Ac no-break power unit
JPS6489970A (en) System of controlling dc-ac power converter
ES8301560A1 (en) Regulated DC power supply
JPS6489968A (en) Inverter controller
GB1431262A (en) Power supply apparatus
SU1102040A1 (en) Switching device
GB1487005A (en) Converter
JPS5725198A (en) Power supply unit
JPS5716589A (en) Driving device for motor
JPS5749393A (en) Inverter controlling circuit for driving motor