JPS57202898A - Excitation control circuit for synchronous machine - Google Patents
Excitation control circuit for synchronous machineInfo
- Publication number
- JPS57202898A JPS57202898A JP56084898A JP8489881A JPS57202898A JP S57202898 A JPS57202898 A JP S57202898A JP 56084898 A JP56084898 A JP 56084898A JP 8489881 A JP8489881 A JP 8489881A JP S57202898 A JPS57202898 A JP S57202898A
- Authority
- JP
- Japan
- Prior art keywords
- regulator
- reactive power
- defective point
- system voltage
- delay
- 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
- 230000001360 synchronised effect Effects 0.000 title abstract 3
- 230000005284 excitation Effects 0.000 title abstract 2
- 230000002950 deficient Effects 0.000 abstract 3
- 230000007423 decrease Effects 0.000 abstract 1
- 238000011144 upstream manufacturing Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
-
- 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
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
PURPOSE:To prevent the unstable operation of an automatic power factor regulator at the time of lowering of a system voltage by detecting the delay reactive power to be supplied to a defective point and locking the output of the regulator. CONSTITUTION:When a shortcircuit occurs at the upstream side system of an AC system 1 or at other feeder of the system 1, a system voltage decreases, and a synchronous motor 5 supplies a delay reactive power to a defective point. Since the delay reactive power is leading reactive power as a regard from an automatic power factor regulator 6, the regulator 6 produces a control signal which weakens the excitation. Since a reactive power relay 12, however, operates with the reactive power flowing to the defective point, thereby opening the contact 12b. Accordingly, the control signal form the regulator 6 is not applied to a phase controller 18. In this manner, the unstable operation of the regulator at the time of lowering of the system voltage can be prevented, thereby stably continuting the operation of the synchronous motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56084898A JPS57202898A (en) | 1981-06-04 | 1981-06-04 | Excitation control circuit for synchronous machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56084898A JPS57202898A (en) | 1981-06-04 | 1981-06-04 | Excitation control circuit for synchronous machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57202898A true JPS57202898A (en) | 1982-12-11 |
Family
ID=13843551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56084898A Pending JPS57202898A (en) | 1981-06-04 | 1981-06-04 | Excitation control circuit for synchronous machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57202898A (en) |
-
1981
- 1981-06-04 JP JP56084898A patent/JPS57202898A/en active Pending
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