SE9600988D0 - Controllable reactor with feedback control winding - Google Patents

Controllable reactor with feedback control winding

Info

Publication number
SE9600988D0
SE9600988D0 SE9600988A SE9600988A SE9600988D0 SE 9600988 D0 SE9600988 D0 SE 9600988D0 SE 9600988 A SE9600988 A SE 9600988A SE 9600988 A SE9600988 A SE 9600988A SE 9600988 D0 SE9600988 D0 SE 9600988D0
Authority
SE
Sweden
Prior art keywords
control
voltage
winding
load
current
Prior art date
Application number
SE9600988A
Other languages
Swedish (sv)
Other versions
SE515458C2 (en
SE9600988L (en
Inventor
Sven Hoernfeldt
Original Assignee
Abb Research Ltd
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 Abb Research Ltd filed Critical Abb Research Ltd
Priority to SE9600988A priority Critical patent/SE515458C2/en
Publication of SE9600988D0 publication Critical patent/SE9600988D0/en
Priority to PCT/SE1997/000424 priority patent/WO1997034210A1/en
Publication of SE9600988L publication Critical patent/SE9600988L/en
Publication of SE515458C2 publication Critical patent/SE515458C2/en

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/32—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using magnetic devices having a controllable degree of saturation as final control devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
    • H02H9/021—Current limitation using saturable reactors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

A device for performing, individually or in combination with each other, the functions of voltage control, power factor correction, current limiting and harmonic filtering at a network, with a line voltage U0 and a load voltage U, with the aid of a control voltage DELTA U. The device comprises a controllable reactor comprising at least one control winding (7) and at least one power winding (5) for generating the control voltage DELTA U, as well as a control unit (10) which, via at least one power amplifier (9), delivers a control current Is to the control winding. The power winding is connected in series with the load (2) and through it flows a load current I0. A measuring member (8) senses the magnetic flux ( PHI ) of the controllable reactor and delivers a flux voltage V PHI proportional thereto. Via measuring members, those signals which correspond to the line voltage U0, the load voltage U, the control voltage DELTA U, the load current I0 and the flux voltage V PHI are fed back to the control unit which, in dependence thereon, via the power amplifier(s), delivers such a control current Is to the control winding that the control voltage DELTA U induced in the power winding supplements the line voltage U0 such that the relevant functions or function are/is achieved.
SE9600988A 1996-03-15 1996-03-15 Controllable reactor with feedback control winding SE515458C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9600988A SE515458C2 (en) 1996-03-15 1996-03-15 Controllable reactor with feedback control winding
PCT/SE1997/000424 WO1997034210A1 (en) 1996-03-15 1997-03-13 Controllable reactor with feedback control winding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9600988A SE515458C2 (en) 1996-03-15 1996-03-15 Controllable reactor with feedback control winding

Publications (3)

Publication Number Publication Date
SE9600988D0 true SE9600988D0 (en) 1996-03-15
SE9600988L SE9600988L (en) 1997-09-16
SE515458C2 SE515458C2 (en) 2001-08-06

Family

ID=20401795

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9600988A SE515458C2 (en) 1996-03-15 1996-03-15 Controllable reactor with feedback control winding

Country Status (2)

Country Link
SE (1) SE515458C2 (en)
WO (1) WO1997034210A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
CZ20033151A3 (en) * 2003-11-19 2005-07-13 Jaroslav Foglar Voltage controller intended particularly for power regulation
WO2005076293A1 (en) * 2004-02-03 2005-08-18 Magtech As Power supply control methods and devices
ES2277500B1 (en) * 2005-02-15 2008-06-16 Universidad De Sevilla CONTINUOUS REGULATION PROCEDURE OF THE RELATIONSHIP OF VOLTAGES IN TRANSFORMERS.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628057A (en) * 1970-06-19 1971-12-14 Allen Bradley Co Corrective circuit for an active narrow notch filter
AU6284586A (en) * 1985-09-13 1987-04-07 Hasler A.G. Electric power converter
US4833585A (en) * 1988-08-03 1989-05-23 Westinghouse Electric Corp. Zone filter
US5341281A (en) * 1993-05-14 1994-08-23 Allen-Bradley Company, Inc. Harmonic compensator using low leakage reactance transformer
DE4325061A1 (en) * 1993-07-26 1995-02-02 Siemens Ag Short-circuit current limiting method and arrangement for an angular transformer

Also Published As

Publication number Publication date
WO1997034210A1 (en) 1997-09-18
SE515458C2 (en) 2001-08-06
SE9600988L (en) 1997-09-16

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