JPS57211621A - Controlling system for power factor improving circuit - Google Patents

Controlling system for power factor improving circuit

Info

Publication number
JPS57211621A
JPS57211621A JP56096535A JP9653581A JPS57211621A JP S57211621 A JPS57211621 A JP S57211621A JP 56096535 A JP56096535 A JP 56096535A JP 9653581 A JP9653581 A JP 9653581A JP S57211621 A JPS57211621 A JP S57211621A
Authority
JP
Japan
Prior art keywords
circuit
factor improving
improving circuit
power
current
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
JP56096535A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0532762B2 (enrdf_load_stackoverflow
Inventor
Fumio Tajima
Tsunehiro Endo
Kenichi Iizuka
Yuji Kawaguchi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56096535A priority Critical patent/JPS57211621A/ja
Publication of JPS57211621A publication Critical patent/JPS57211621A/ja
Publication of JPH0532762B2 publication Critical patent/JPH0532762B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/70—Regulating power factor; Regulating reactive current or power

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Rectifiers (AREA)
  • Control Of Electrical Variables (AREA)
  • Inverter Devices (AREA)
JP56096535A 1981-06-24 1981-06-24 Controlling system for power factor improving circuit Granted JPS57211621A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56096535A JPS57211621A (en) 1981-06-24 1981-06-24 Controlling system for power factor improving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56096535A JPS57211621A (en) 1981-06-24 1981-06-24 Controlling system for power factor improving circuit

Publications (2)

Publication Number Publication Date
JPS57211621A true JPS57211621A (en) 1982-12-25
JPH0532762B2 JPH0532762B2 (enrdf_load_stackoverflow) 1993-05-17

Family

ID=14167810

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56096535A Granted JPS57211621A (en) 1981-06-24 1981-06-24 Controlling system for power factor improving circuit

Country Status (1)

Country Link
JP (1) JPS57211621A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1052093A (ja) * 1997-01-20 1998-02-20 Hitachi Ltd 電動機の速度制御装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5317932A (en) * 1976-07-31 1978-02-18 Hitachi Ltd Electric current source circuit
JPS5472440A (en) * 1977-11-22 1979-06-09 Toshiba Corp Protection of rectifier
JPS5622474U (enrdf_load_stackoverflow) * 1979-07-27 1981-02-27

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5317932A (en) * 1976-07-31 1978-02-18 Hitachi Ltd Electric current source circuit
JPS5472440A (en) * 1977-11-22 1979-06-09 Toshiba Corp Protection of rectifier
JPS5622474U (enrdf_load_stackoverflow) * 1979-07-27 1981-02-27

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1052093A (ja) * 1997-01-20 1998-02-20 Hitachi Ltd 電動機の速度制御装置

Also Published As

Publication number Publication date
JPH0532762B2 (enrdf_load_stackoverflow) 1993-05-17

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