JPS55138123A - Reactive power control system - Google Patents
Reactive power control systemInfo
- Publication number
- JPS55138123A JPS55138123A JP4618279A JP4618279A JPS55138123A JP S55138123 A JPS55138123 A JP S55138123A JP 4618279 A JP4618279 A JP 4618279A JP 4618279 A JP4618279 A JP 4618279A JP S55138123 A JPS55138123 A JP S55138123A
- Authority
- JP
- Japan
- Prior art keywords
- circuits
- reactor
- reactive power
- phase
- respondence
- 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
Landscapes
- Control Of Electrical Variables (AREA)
- Rectifiers (AREA)
Abstract
PURPOSE: To control reactive power with excellent respondence by controlling continuity phases of two thyristor control circuits while the mean value of a DC current flowing through a reactor and an input-side active current of the primary winding of a three-phase transformer are kept substantially constant.
CONSTITUTION: Inductive load 4 serving as a filcker generating source like an arc furnace is connected to three-phase power lines 1, 2, 3 and primary winding 5 of a three-phase transformer provided with star-connected secondary windings 6 and 7 by electromagnetic coupling is connected in parallel to the load 4. Windings 6 and 7 are provided with thyristor control rectifying circuits 8 and 9 consisting of six thyristors S1...S6 and S7...S12 each and three-phase bridges, and reactor L is connected in parallel to cascaded circuits 8 and 9. While the mean value of a DC current flowing through reactor L and the input-side reactive current of winding 5 are kept substantially constant, continuity phases of circuits 8 and 9 are controlled. Consequently, reactive power of excellent respondence can be controlled.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4618279A JPS55138123A (en) | 1979-04-16 | 1979-04-16 | Reactive power control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4618279A JPS55138123A (en) | 1979-04-16 | 1979-04-16 | Reactive power control system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55138123A true JPS55138123A (en) | 1980-10-28 |
Family
ID=12739883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4618279A Pending JPS55138123A (en) | 1979-04-16 | 1979-04-16 | Reactive power control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55138123A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49101853A (en) * | 1973-01-05 | 1974-09-26 | ||
JPS5174258A (en) * | 1974-11-18 | 1976-06-28 | Siemens Ag |
-
1979
- 1979-04-16 JP JP4618279A patent/JPS55138123A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49101853A (en) * | 1973-01-05 | 1974-09-26 | ||
JPS5174258A (en) * | 1974-11-18 | 1976-06-28 | Siemens Ag |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES2005338A6 (en) | Power supply for a three-phase plasma heating unit | |
JPS56162976A (en) | Power converter | |
JPS55138123A (en) | Reactive power control system | |
Ichinokura et al. | High speed variable-inductor controlled with DC-DC converter | |
SE7909926L (en) | STROMKELLA FOR REAR WELDING | |
JPS5492165A (en) | Controlling method for thyristor converter | |
JPS57189579A (en) | Controlling method with thyristor at primary side of 3-phase transfsormer | |
SE7909924L (en) | STROMKELLA FOR REAR WELDING | |
SE7909925L (en) | STROMKELLA FOR REAR WELDING | |
JPS5656175A (en) | Separate-excited converter | |
JPS552963A (en) | Phase rotation detecting circuit for three-phase power supply | |
JPS542954A (en) | Powe source circuit of direct current arc welding equipment | |
JPS57126272A (en) | Cycloconverter | |
JPS57199023A (en) | Controlling system of static reactive power generator | |
GB1147741A (en) | Arrangement for compensating the reactive power in an alternating-current three-phase network | |
JPS55100067A (en) | Controlling method of power transistor | |
JPS55112173A (en) | Power supply unit for arc welding | |
JPS645357A (en) | Power converter | |
JPS5518815A (en) | Controlling method for rectified circuit | |
JPS54115725A (en) | Primary voltage controller for induction motor | |
JPS57183270A (en) | Rectifier | |
ES8206114A1 (en) | Slip recovery induction motor controller - uses diode rectification of rotor current and two independent series inverter bridges to control phase shift of returned power (BR 13.10.81) | |
FR2441948A1 (en) | Electric energy converter, esp. for welding - includes thyristor inverter circuit supplying prim. winding of magnetic transfer unit | |
JPS5594585A (en) | Control of power converter | |
JPS54140140A (en) | Power source equipment |