WO1999031686A1 - Transformateur variable a commande de flux - Google Patents
Transformateur variable a commande de flux Download PDFInfo
- Publication number
- WO1999031686A1 WO1999031686A1 PCT/JP1997/004659 JP9704659W WO9931686A1 WO 1999031686 A1 WO1999031686 A1 WO 1999031686A1 JP 9704659 W JP9704659 W JP 9704659W WO 9931686 A1 WO9931686 A1 WO 9931686A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnetic circuit
- winding
- magnetic
- voltage
- cut core
- Prior art date
Links
- 230000004907 flux Effects 0.000 title claims abstract description 130
- 238000004804 winding Methods 0.000 claims abstract description 171
- 230000005284 excitation Effects 0.000 claims abstract 2
- 230000008859 change Effects 0.000 abstract description 7
- 230000007423 decrease Effects 0.000 description 27
- 238000010586 diagram Methods 0.000 description 13
- 230000007246 mechanism Effects 0.000 description 7
- 230000003068 static effect Effects 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000012885 constant function Methods 0.000 description 1
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
- H01F2029/143—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias
Definitions
- the magnetic flux ⁇ 1 1 2 The magnetic flux ⁇ 2 in the direction increases, the magnetic flux ⁇ ⁇ -Z of the second magnetic circuit decreases, and the secondary voltage e 2 decreases.
- the magnetic flux 1 — 1 of the first magnetic circuit requires a magnetic flux in which the applied voltage e 1 of the primary winding 14 and the induced voltage are balanced, so that the magnetic flux 0 1 — 2 of the second magnetic circuit Increases by the amount corresponding to the decrease.
- the current ic of the control winding 12 wound around the second cut core is increased, the magnetic resistance of the contact surface common magnetic path 15 of the first and second U-shaped cut cores is increased.
- the passage of the magnetic flux 9-11 by the applied voltage el to the primary winding 14 is suppressed and reduced. Then, since a magnetic flux that balances the applied voltage e 1 of the primary winding 14 with the induced voltage is required, the decrease of the magnetic flux ⁇ 11 of the first magnetic circuit is equivalent to the magnetic flux 11 of the second magnetic circuit. 2, the flux linkage between the primary winding 14 and the secondary winding 17 wound on the second magnetic circuit increases, and the secondary voltage e 2 increases.
- the magnetic flux in the opposite direction to the magnetic flux 0 1 — 2 of the primary winding 14 is applied to the second magnetic circuit.
- ⁇ 2 decreases.
- the magnetic flux ⁇ 1 -2 of the second magnetic circuit increases, the flux linkage between the primary winding 14 and the secondary winding 17 increases, and the secondary voltage e 2 rises.
- the current ic of the control winding 12 wound around the second cut core 11 is reduced, the magnetic resistance of the magnetic path 15 common to the contact surfaces of the first and second U-shaped cut cores is reduced. Then, the passage of the magnetic fluxes 11 by the applied voltage e 1 to the primary winding 14 is eased and increased.
- the magnetic flux is constant in accordance with the applied voltage e 1 of the primary winding 14, and the magnetic flux of the first magnetic circuit 11
- the addition of 1 corresponds to a decrease in the magnetic flux 112 of the second magnetic circuit, and the linkage flux of the primary winding 14 and the secondary winding 17 wound on the second magnetic circuit decreases.
- the secondary voltage e 2 decreases.
- the relationship between the control current and the secondary voltage when the applied voltage e 1 of the primary winding is constant is as shown in ic and e 2 in Fig. 6.
- FIGS. 12 and 13 show an embodiment in which the rectifier circuit 20 connected to the auxiliary winding 18 is used as a control power supply as a power supply for the control winding current ic wound around the second cut core.
- Fig. 6 shows the characteristics of the control current ic versus the secondary voltage e2 and the auxiliary winding voltage e3 with the load of the secondary winding as a parameter.
- the correlation between the secondary voltage e2 and the auxiliary winding voltage e3 can be understood. That is, the voltage of the secondary winding decreases with an increase in load and increases with an increase in the control current ic. Further, the auxiliary winding voltage e 3 has a characteristic of increasing with an increase in the load and decreasing with an increase in the control current ic.
- the auxiliary winding voltage e 3 always changes according to the change in the load, but the control current ic Power supply conditions are met within the required range.
- the change of the secondary voltage e2 and the auxiliary winding voltage e3 due to the change of the load current i2 It turns out to be the opposite.
- the auxiliary winding voltage e3 as the power source of the control current ic, if the secondary voltage e2 decreases due to an increase in the load, the auxiliary winding voltage e3 increases and the control current ic increases. Acts to suppress the decrease in the secondary voltage e 2 and compensates for voltage fluctuations in the secondary voltage e 2.
- the value of the exciting current ic of the control winding 12 of the second U-shaped cut core 11 is changed, and the magnetic resistance of the first magnetic circuit of the primary winding 14 is changed.
- the secondary winding voltage e 2 can be continuously varied.
- FIG. 14 shows a circuit configuration of a static voltage regulator using a magnetic flux control type variable transformer according to an embodiment of the present invention. As shown in FIG. 14, adjustment of the secondary voltage e 2 is performed. Is performed by controlling the interlinkage magnetic flux between the windings, so that high-speed control is possible and there is no wear of the contact mechanism.
- the equipment is composed of copper iron stationary equipment consisting of a magnetic core and windings, and can be provided as power system voltage stabilization equipment that requires high reliability in terms of durability, maintainability, and performance.
- Figure 15 shows the circuit configuration of a static voltage regulator to which a magnetic flux control type variable transformer for a three-phase transformer is applied.
- Figure 17 shows an example of constant voltage control characteristics of a magnetic flux control type variable transformer. It is. This shows the constant voltage control characteristics of the secondary voltage e2 in the circuit configuration of the embodiment in which the flux-controlled variable transformer for a three-phase transformer shown in Fig. 15 is applied to a static voltage regulator. It shows the control current ic of the control winding 12 for continuously controlling the change of the primary voltage to keep the secondary voltage e 2 constant.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ac-Ac Conversion (AREA)
- Control Of Electrical Variables (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP08379397A JP3283783B2 (ja) | 1996-11-26 | 1997-04-02 | 磁束制御形可変変圧器 |
US09/254,740 US6137391A (en) | 1997-12-17 | 1997-12-17 | Flux-controlled type variable transformer |
PCT/JP1997/004659 WO1999031686A1 (fr) | 1997-04-02 | 1997-12-17 | Transformateur variable a commande de flux |
EP97947968A EP0969486A4 (en) | 1997-12-17 | 1997-12-17 | VARIABLE FLOW CONTROL TRANSFORMER |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP08379397A JP3283783B2 (ja) | 1996-11-26 | 1997-04-02 | 磁束制御形可変変圧器 |
PCT/JP1997/004659 WO1999031686A1 (fr) | 1997-04-02 | 1997-12-17 | Transformateur variable a commande de flux |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999031686A1 true WO1999031686A1 (fr) | 1999-06-24 |
Family
ID=14181669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1997/004659 WO1999031686A1 (fr) | 1996-11-26 | 1997-12-17 | Transformateur variable a commande de flux |
Country Status (3)
Country | Link |
---|---|
US (1) | US6137391A (ja) |
EP (1) | EP0969486A4 (ja) |
WO (1) | WO1999031686A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI378478B (en) * | 2007-01-09 | 2012-12-01 | Mitsubishi Electric Corp | Reactor-jointed transformer |
JP4301342B2 (ja) * | 2007-12-18 | 2009-07-22 | サンケン電気株式会社 | Dc/dcコンバータ |
NO330773B1 (no) * | 2009-12-18 | 2011-07-11 | Vetco Gray Scandinavia As | Transformator |
NO332845B1 (no) | 2011-06-16 | 2013-01-21 | Vetco Gray Scandinavia As | Transformator |
EP2930837A1 (en) | 2014-04-10 | 2015-10-14 | GE Energy Power Conversion Technology Ltd | Power converters |
JP6853929B2 (ja) * | 2016-12-07 | 2021-04-07 | 日本▲まき▼線工業株式会社 | Led駆動電源装置 |
US10770937B2 (en) * | 2019-01-03 | 2020-09-08 | A&I Services Incorporated | High efficiency power generation system and a method of operating same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54120828A (en) * | 1978-03-13 | 1979-09-19 | Matsushita Electric Ind Co Ltd | Output control transformer |
JPS55138215A (en) * | 1979-04-12 | 1980-10-28 | Sony Corp | Power supply device |
JPS56131918A (en) * | 1980-03-19 | 1981-10-15 | Sony Corp | Power source unit |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3582829A (en) * | 1968-08-05 | 1971-06-01 | Wanlass Electric Co | Modulating systems incorporating an electrically variable inductance as a modulating element |
CA1118509A (fr) * | 1978-10-20 | 1982-02-16 | Gerald Roberge | Variable inductance |
CA1126357A (fr) * | 1979-09-19 | 1982-06-22 | Gerald Roberge | Transformateur a rapport variable et compensateur statique a bascule |
JPH04368468A (ja) * | 1991-06-14 | 1992-12-21 | Sony Corp | スイッチング電源装置 |
JPH07335456A (ja) * | 1994-06-09 | 1995-12-22 | Sony Corp | 可飽和リアクタトランス及びコンバータトランス |
-
1997
- 1997-12-17 WO PCT/JP1997/004659 patent/WO1999031686A1/ja not_active Application Discontinuation
- 1997-12-17 EP EP97947968A patent/EP0969486A4/en not_active Withdrawn
- 1997-12-17 US US09/254,740 patent/US6137391A/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54120828A (en) * | 1978-03-13 | 1979-09-19 | Matsushita Electric Ind Co Ltd | Output control transformer |
JPS55138215A (en) * | 1979-04-12 | 1980-10-28 | Sony Corp | Power supply device |
JPS56131918A (en) * | 1980-03-19 | 1981-10-15 | Sony Corp | Power source unit |
Non-Patent Citations (1)
Title |
---|
See also references of EP0969486A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP0969486A1 (en) | 2000-01-05 |
EP0969486A4 (en) | 2001-03-07 |
US6137391A (en) | 2000-10-24 |
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