SE9203331L - Controllable inductor and use thereof - Google Patents

Controllable inductor and use thereof

Info

Publication number
SE9203331L
SE9203331L SE9203331A SE9203331A SE9203331L SE 9203331 L SE9203331 L SE 9203331L SE 9203331 A SE9203331 A SE 9203331A SE 9203331 A SE9203331 A SE 9203331A SE 9203331 L SE9203331 L SE 9203331L
Authority
SE
Sweden
Prior art keywords
core
inductor
current
permeability
magnetic material
Prior art date
Application number
SE9203331A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9203331D0 (en
Inventor
S Valdemarsson
Original Assignee
Asea Brown Boveri
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asea Brown Boveri filed Critical Asea Brown Boveri
Priority to SE9203331A priority Critical patent/SE9203331L/en
Publication of SE9203331D0 publication Critical patent/SE9203331D0/en
Priority to PCT/SE1993/000946 priority patent/WO1994011891A1/en
Publication of SE9203331L publication Critical patent/SE9203331L/en

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

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.
SE9203331A 1992-11-09 1992-11-09 Controllable inductor and use thereof SE9203331L (en)

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 SE9203331D0 (en) 1992-11-09
SE9203331L true 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)

* Cited by examiner, † Cited by third party
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
SE506893C2 (en) 1996-05-23 1998-02-23 Asea Brown Boveri Controllable inductor
SE506891C2 (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
US6933822B2 (en) 2000-05-24 2005-08-23 Magtech As Magnetically influenced current or voltage regulator and a magnetically influenced converter
US7026905B2 (en) 2000-05-24 2006-04-11 Magtech As Magnetically controlled inductive device
NO318397B1 (en) 2001-11-21 2005-03-14 Magtech As System for controlling impedance in a working circuit
NO319424B1 (en) 2001-11-21 2005-08-08 Magtech As Method for Controllable Conversion of a Primary AC / Voltage to a Secondary AC / Voltage
CA2467986C (en) * 2001-11-21 2012-04-10 Magtech As Device with controllable impedance
NO319367B1 (en) * 2001-11-21 2005-07-18 Magtech As Transformer device with controllable impedance and systems equipped with such devices
NO319363B1 (en) 2002-12-12 2005-07-18 Magtech As Voltage stabilization system for power supply lines
NO320040B1 (en) * 2004-02-03 2005-10-17 Magtech As Method and device for limiting current in a variable load
NO320108B1 (en) * 2004-02-03 2005-10-24 Magtech As Method and apparatus for controlling a variable power supply
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 Electromagnetic interface filter and EMI power filter access circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE911293C (en) * 1939-11-29 1954-05-13 Aeg Inductance adjustable by transverse pre-magnetization

Also Published As

Publication number Publication date
WO1994011891A1 (en) 1994-05-26
SE9203331D0 (en) 1992-11-09

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