SE9203331D0 - CONTROLLABLE INDUCTOR - Google Patents
CONTROLLABLE INDUCTORInfo
- Publication number
- SE9203331D0 SE9203331D0 SE9203331A SE9203331A SE9203331D0 SE 9203331 D0 SE9203331 D0 SE 9203331D0 SE 9203331 A SE9203331 A SE 9203331A SE 9203331 A SE9203331 A SE 9203331A SE 9203331 D0 SE9203331 D0 SE 9203331D0
- Authority
- SE
- Sweden
- Prior art keywords
- core
- inductor
- current
- permeability
- magnetic material
- Prior art date
Links
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
- H01F29/146—Constructional details
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention relates to an inductor with variable inductance based on the principle of orthogonal magnetization, that is, control of the permeability of the magnetic material with the aid of a cross-directional control field. The inductor has a main winding (2) which is intended for alternating current and which surrounds a tubular core (3) wound from tape-formed magnetic material. The core is composed of a plurality of ring cores (31) which are stacked coaxially one above the other and which are axially divided and angularly displaced relative to each other. Axially through the core extends a control winding (4) intended for direct current. By changing the current in the control winding, the permeability of the core is changed in its axial direction and hence also the inductance of the inductor. The eddy-current losses in the core can be considerably reduced by making the core conically tapering towards its ends or by arranging so-called flux funnels (8) with radially bladed laminations near the ends of the core. The inductor is especially suitable for use in power plants, for example in tunable harmonic filters for high-voltage direct current.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9203331A SE9203331L (en) | 1992-11-09 | 1992-11-09 | Controllable inductor and use thereof |
PCT/SE1993/000946 WO1994011891A1 (en) | 1992-11-09 | 1993-11-09 | Controllable inductor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9203331A SE9203331L (en) | 1992-11-09 | 1992-11-09 | Controllable inductor and use thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
SE9203331D0 true SE9203331D0 (en) | 1992-11-09 |
SE9203331L SE9203331L (en) | 1994-05-10 |
Family
ID=20387741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9203331A SE9203331L (en) | 1992-11-09 | 1992-11-09 | Controllable inductor and use thereof |
Country Status (2)
Country | Link |
---|---|
SE (1) | SE9203331L (en) |
WO (1) | WO1994011891A1 (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE504303C2 (en) * | 1994-10-25 | 1996-12-23 | Asea Brown Boveri | Three-phase filter equipment |
US5585766A (en) * | 1994-10-27 | 1996-12-17 | Applied Materials, Inc. | Electrically tuned matching networks using adjustable inductance elements |
SE506891C2 (en) * | 1996-05-23 | 1998-02-23 | Asea Brown Boveri | Controllable inductor |
SE506893C2 (en) | 1996-05-23 | 1998-02-23 | Asea Brown Boveri | Controllable inductor |
SE511406C2 (en) * | 1997-01-08 | 1999-09-27 | Abb Ab | Controllable inductor |
WO1998047159A1 (en) * | 1997-03-26 | 1998-10-22 | Abb Ab | A controllable inductor |
US7026905B2 (en) | 2000-05-24 | 2006-04-11 | Magtech As | Magnetically controlled inductive device |
US6933822B2 (en) | 2000-05-24 | 2005-08-23 | Magtech As | Magnetically influenced current or voltage regulator and a magnetically influenced converter |
NO318397B1 (en) | 2001-11-21 | 2005-03-14 | Magtech As | System for controlling impedance in a working circuit |
NO319367B1 (en) * | 2001-11-21 | 2005-07-18 | Magtech As | Transformer device with controllable impedance and systems equipped with such devices |
ATE349730T1 (en) * | 2001-11-21 | 2007-01-15 | Magtech As | DEVICE WITH CONTROLLED IMPEDANCE |
NO319424B1 (en) | 2001-11-21 | 2005-08-08 | Magtech As | Method for Controllable Conversion of a Primary AC / Voltage to a Secondary AC / Voltage |
NO319363B1 (en) | 2002-12-12 | 2005-07-18 | Magtech As | Voltage stabilization system for power supply lines |
NO320108B1 (en) * | 2004-02-03 | 2005-10-24 | Magtech As | Method and apparatus for controlling a variable power supply |
NO320040B1 (en) * | 2004-02-03 | 2005-10-17 | Magtech As | Method and device for limiting current in a variable load |
CN101345122B (en) * | 2008-05-19 | 2010-10-13 | 哈尔滨工业大学 | Direct current flux control type adjustable reactor |
UA111101C2 (en) * | 2014-06-20 | 2016-03-25 | Леонід Нісонович Конторович | Controlled electric reactor with transverse magnetization |
CN107482896A (en) * | 2016-06-08 | 2017-12-15 | 珠海格力电器股份有限公司 | EMI filter and power EMI filter access circuit |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE911293C (en) * | 1939-11-29 | 1954-05-13 | Aeg | Inductance adjustable by transverse pre-magnetization |
-
1992
- 1992-11-09 SE SE9203331A patent/SE9203331L/en not_active Application Discontinuation
-
1993
- 1993-11-09 WO PCT/SE1993/000946 patent/WO1994011891A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
SE9203331L (en) | 1994-05-10 |
WO1994011891A1 (en) | 1994-05-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 9203331-5 Effective date: 19941005 |
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NAV | Patent application has lapsed |
Ref document number: 9203331-5 |