JPS645329A - Control method for reactive power compensator - Google Patents
Control method for reactive power compensatorInfo
- 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
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.
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)
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 |
-
1987
- 1987-06-25 JP JP62156514A patent/JPS645329A/en active Pending
Cited By (5)
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 |
EP2717111A1 (en) * | 2011-05-24 | 2014-04-09 | Hitachi, Ltd. | 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 | Var compensator, and system and method therefor |
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