JPS645329A - Control method for reactive power compensator - Google Patents

Control method for reactive power compensator

Info

Publication number
JPS645329A
JPS645329A JP62156514A JP15651487A JPS645329A JP S645329 A JPS645329 A JP S645329A JP 62156514 A JP62156514 A JP 62156514A JP 15651487 A JP15651487 A JP 15651487A JP S645329 A JPS645329 A JP S645329A
Authority
JP
Japan
Prior art keywords
sound
phase
circuit
phases
ground fault
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
JP62156514A
Other languages
Japanese (ja)
Inventor
Kimihiro Hoshi
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
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 filed Critical Toshiba Corp
Priority to JP62156514A priority Critical patent/JPS645329A/en
Publication of JPS645329A publication Critical patent/JPS645329A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30—Reactive power compensation

Landscapes

  • Supply And Distribution Of Alternating Current (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

PURPOSE:To prevent overvoltage of two sound phases upon occurrence of one- line ground, by carrying out three-phase integral control based on an average value of two sound phases. CONSTITUTION:Three phase voltages are detected through PT and inputted through voltage detectors 5-1, 5-2, 5-3. When there is no ground fault, these voltages are averaged through an adder 6-1 and a 1/3 circuit 7 then outputted through a switch 14 to a firing angle determining circuit 10. Upon occurrence of one-line ground fault, it is detected through ground fault detecting circuits 12-1, 12-2, 12-3 and an average voltage of two sound phases is obtained through a sound two-phase voltage detecting circuit 13, while at the same time the switch 14 is switched to the side of sound two-phase voltage detecting circuit 13. Consequently, average voltage of two sound phases is outputted to a phase control circuit 11.
JP62156514A 1987-06-25 1987-06-25 Control method for reactive power compensator Pending JPS645329A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62156514A JPS645329A (en) 1987-06-25 1987-06-25 Control method for reactive power compensator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62156514A JPS645329A (en) 1987-06-25 1987-06-25 Control method for reactive power compensator

Publications (1)

Publication Number Publication Date
JPS645329A true JPS645329A (en) 1989-01-10

Family

ID=15629439

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62156514A Pending JPS645329A (en) 1987-06-25 1987-06-25 Control method for reactive power compensator

Country Status (1)

Country Link
JP (1) JPS645329A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7944184B2 (en) * 2008-04-07 2011-05-17 Korea Electric Power Corporation Static compensator apparatus for HVDC system
WO2012160646A1 (en) * 2011-05-24 2012-11-29 株式会社日立製作所 Var compensator, and system and method therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7944184B2 (en) * 2008-04-07 2011-05-17 Korea Electric Power Corporation Static compensator apparatus for HVDC system
WO2012160646A1 (en) * 2011-05-24 2012-11-29 株式会社日立製作所 Var compensator, and system and method therefor
JP5555376B2 (en) * 2011-05-24 2014-07-23 株式会社日立製作所 Reactive power compensator, system and method thereof
EP2717111A4 (en) * 2011-05-24 2015-01-21 Hitachi Ltd BLIND POWER COMPENSATOR AND SYSTEM AND METHOD THEREFOR

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