JPS57113124A - Controlling method for balancing load electric power - Google Patents
Controlling method for balancing load electric powerInfo
- Publication number
- JPS57113124A JPS57113124A JP18869780A JP18869780A JPS57113124A JP S57113124 A JPS57113124 A JP S57113124A JP 18869780 A JP18869780 A JP 18869780A JP 18869780 A JP18869780 A JP 18869780A JP S57113124 A JPS57113124 A JP S57113124A
- Authority
- JP
- Japan
- Prior art keywords
- loads
- zero
- pulse
- cross
- origin
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
- H02M1/084—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters using a control circuit common to several phases of a multi-phase system
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Voltage And Current In General (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
PURPOSE:To reduce waveform distortion and a peak by avoiding the overlap of the current conduction time of each load as much as possible, by repeatedly turning on and off the same AC power source to at least two loads with different phases. CONSTITUTION:When an AC voltage is applied from one AC power source to loads 1-3, a phase distributor PD supplies an ON origin signal or an OFF origin signal to power controllers PC1-PC3 for the loads. For example, when voltages of the front, intermediate and rear parts of a half wave are applied to the loads 1, 2 and 3 respectively, the PC1 is supplied with a zero-cross pulse as an ON indication signal, and the PC2 is supplied with a pulse having a prescribed time limit while the zero-cross pulse is regarded as an origin; and they are turned off under the phase control of the controllers PC1 and PC2. The controller PC3, on the other hand, turns on through its phase control, and an ON-OFF means SW3 uses a thyristor which turns off automatically at the zero-cross point of an alternating current. For turning-off operation at a point other than the zero-cross point, a transistor switching circuit, etc., is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18869780A JPS57113124A (en) | 1980-12-29 | 1980-12-29 | Controlling method for balancing load electric power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18869780A JPS57113124A (en) | 1980-12-29 | 1980-12-29 | Controlling method for balancing load electric power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57113124A true JPS57113124A (en) | 1982-07-14 |
Family
ID=16228230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18869780A Pending JPS57113124A (en) | 1980-12-29 | 1980-12-29 | Controlling method for balancing load electric power |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57113124A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62288914A (en) * | 1986-06-09 | 1987-12-15 | Toshiba Corp | Load controller |
-
1980
- 1980-12-29 JP JP18869780A patent/JPS57113124A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62288914A (en) * | 1986-06-09 | 1987-12-15 | Toshiba Corp | Load controller |
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