JPS5771022A - Alternating-current viltage regulator - Google Patents
Alternating-current viltage regulatorInfo
- Publication number
- JPS5771022A JPS5771022A JP14772980A JP14772980A JPS5771022A JP S5771022 A JPS5771022 A JP S5771022A JP 14772980 A JP14772980 A JP 14772980A JP 14772980 A JP14772980 A JP 14772980A JP S5771022 A JPS5771022 A JP S5771022A
- Authority
- JP
- Japan
- Prior art keywords
- sws
- load
- voltage
- extinction
- taps
- 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
- 239000004065 semiconductor Substances 0.000 abstract 2
- 238000004804 winding Methods 0.000 abstract 2
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
- G05F1/10—Regulating voltage or current
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is AC
- G05F1/14—Regulating voltage or current wherein the variable actually regulated by the final control device is AC using tap transformers or tap changing inductors as final control devices
- G05F1/16—Regulating voltage or current wherein the variable actually regulated by the final control device is AC using tap transformers or tap changing inductors as final control devices combined with discharge tubes or semiconductor devices
- G05F1/20—Regulating voltage or current wherein the variable actually regulated by the final control device is AC using tap transformers or tap changing inductors as final control devices combined with discharge tubes or semiconductor devices semiconductor devices only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Control Of Electrical Variables (AREA)
Abstract
PURPOSE:To achieve continuous voltage regulation by providing a couple of tapped transformers and a couple of AC SWs including semiconductor switches SWs having the capability of self-extinction of arc, and by exercising pulse-width modulation control over the SWs. CONSTITUTION:A voltage V1 is applied across the primary winding of a transformer T, and the secondry winding has taps T1 and T2 for voltages V21 and V22. The voltages V21 and V22 determine a maximum and a minimum voltage applied to a load L. Between the taps T1 and T2, and load L, AC switches S1 and S2 of diode bridge constitution with bridge SCRs are connected. Then, SCRs TH1 and TH2 are semiconductor SWs having the capability of self-extinction of arc, the TH1 and TH2 are turned on and off by turned through a pulse-width modulation controlling circuit and the on-off ratio is controlled according to an AC voltage command supplied to the load. Thus, adjusting the on-off ratios of the AC SWsS1 and S2 varies the AC voltage supplied to the load continuously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14772980A JPS5771022A (en) | 1980-10-22 | 1980-10-22 | Alternating-current viltage regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14772980A JPS5771022A (en) | 1980-10-22 | 1980-10-22 | Alternating-current viltage regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5771022A true JPS5771022A (en) | 1982-05-01 |
Family
ID=15436834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14772980A Pending JPS5771022A (en) | 1980-10-22 | 1980-10-22 | Alternating-current viltage regulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5771022A (en) |
-
1980
- 1980-10-22 JP JP14772980A patent/JPS5771022A/en active Pending
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