JPS57196324A - Improving device of power factor - Google Patents
Improving device of power factorInfo
- Publication number
- JPS57196324A JPS57196324A JP56081462A JP8146281A JPS57196324A JP S57196324 A JPS57196324 A JP S57196324A JP 56081462 A JP56081462 A JP 56081462A JP 8146281 A JP8146281 A JP 8146281A JP S57196324 A JPS57196324 A JP S57196324A
- Authority
- JP
- Japan
- Prior art keywords
- load
- inductance
- capacitor
- power factor
- fluctuation
- 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
-
- 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)
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Electrical Variables (AREA)
Abstract
PURPOSE:To reduce the variation of a power factor regardless of fluctuation of a load, by using a capacitor which is connected in parallel to the load and a reactor which is connected in series between the capacitor and an Ac power supply. CONSTITUTION:A capacitor 14 having capacitance C is connected in parallel to a load 12 containing an inductance L0 and a resistance r0, and a reactor 18 of an inductance L is connected in series between the capacitor 14 and an AC power supply 10. The phase difference psi is obtained from an equationIfor a circuit having such constitution as mentioned above. Accordingly, tanphi varies like an equation II to the variation of the inductance L0 within the load 12. Both the capacitance C and the inductance L are decided so that the right sides of both the equationsIand II are set substantially zero. As a result, the fluctuation of a power factor can be extremely reduced with respect to the fluctuation of the load.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56081462A JPS57196324A (en) | 1981-05-28 | 1981-05-28 | Improving device of power factor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56081462A JPS57196324A (en) | 1981-05-28 | 1981-05-28 | Improving device of power factor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57196324A true JPS57196324A (en) | 1982-12-02 |
Family
ID=13747057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56081462A Pending JPS57196324A (en) | 1981-05-28 | 1981-05-28 | Improving device of power factor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57196324A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6340921A (en) * | 1986-08-07 | 1988-02-22 | Shinko Electric Co Ltd | Power factor correcting circuit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS568009U (en) * | 1979-06-30 | 1981-01-23 |
-
1981
- 1981-05-28 JP JP56081462A patent/JPS57196324A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS568009U (en) * | 1979-06-30 | 1981-01-23 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6340921A (en) * | 1986-08-07 | 1988-02-22 | Shinko Electric Co Ltd | Power factor correcting circuit |
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