EP1198742A1 - Reglage electronique de la puissance reactive de reacteurs - Google Patents

Reglage electronique de la puissance reactive de reacteurs

Info

Publication number
EP1198742A1
EP1198742A1 EP00945908A EP00945908A EP1198742A1 EP 1198742 A1 EP1198742 A1 EP 1198742A1 EP 00945908 A EP00945908 A EP 00945908A EP 00945908 A EP00945908 A EP 00945908A EP 1198742 A1 EP1198742 A1 EP 1198742A1
Authority
EP
European Patent Office
Prior art keywords
winding
adjustment
reactor
voltage
reactive power
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.)
Withdrawn
Application number
EP00945908A
Other languages
German (de)
English (en)
Inventor
Dorino Iemmi
Giovanni Lanciano
Lorenzo Lanzavecchia
Giovanni Testin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Ricerca SpA
Original Assignee
ABB Ricerca SpA
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 Ricerca SpA filed Critical ABB Ricerca SpA
Publication of EP1198742A1 publication Critical patent/EP1198742A1/fr
Withdrawn legal-status Critical Current

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
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/462—Regulating voltage or current wherein the variable actually regulated by the final control device is dc as a function of the requirements of the load, e.g. delay, temperature, specific voltage/current characteristic
    • G05F1/465—Internal voltage generators for integrated circuits, e.g. step down generators

Definitions

  • the present invention relates to a reactor of the parallel or series type, with electronic adjustment of reactive power.
  • reactors arranged in a parallel configuration having a fixed number of turns, are used to compensate the capacitive power of high-voltage lines.
  • reactors which again have a fixed number of turns are arranged in series in order to limit short-circuit currents in high- voltage lines.
  • reactors have the drawback that they are not flexible enough as regards the variability of the conditions of electric power lines.
  • the variability of power electric lines in fact, makes it necessary to be able to vary the reactance introduced in the line by the reactor.
  • the aim of the present invention is to provide a reactor of the parallel or series type, with electronic adjustment of the reactive power.
  • an object of the present invention is to provide a reactor of the parallel or series type, with reactive power adjustment, which is capable of continuously adjusting its own reactance within set limits.
  • Another object of the present invention is to provide a reactor of the parallel or series type, with electronic adjustment of the reactive power, in which said reactance adjustment can occur both so as to increase the reactance and so as to decrease it.
  • Another object of the present invention is to provide a reactor of the parallel or series type with reactive power adjustment, which is highly reliable, relatively easy to provide and at competitive costs.
  • the present invention provides a reactor with electronic adjustment of reactive power, comprising at least one main winding and an adjustment winding.
  • the reactor according to the present invention is characterized in that it comprises a voltage regulator circuit, said voltage regulator circuit being connected to said main winding and to the terminals of said adjustment winding and being suitable to generate an alternating adjustment voltage, which is meant to be added to and/or subtracted from a sinusoidal voltage generated by said main winding.
  • Figure 2 is a circuit diagram of a second embodiment of the reactor according to the present invention.
  • the reactor generally designated by the reference numeral 1 , comprises a primary winding 2, an adjustment winding 3, and a voltage regulator circuit 4, which are connected as follows.
  • the voltage regulator circuit 4 comprises, in addition to the regulators 5 and 6, another pair of regulators 7 and 8.
  • the regulators 7 and 8 are respectively connected between a first terminal 100 of the adjustment winding 3 and the ground and a second terminal 101 of the adjustment winding 3 and the ground.
  • the adjustment voltage generated by the adjustment winding 3 can be added to, and subtracted from, the main voltage induced in the primary winding 2.
  • the advantage of electronic adjustment therefore consists in adjusting the voltage continuously with limited noise (small step) or discontinuously without noise, according to the requirements of the user.
  • FIG. 1 illustrates the first embodiment, in which there is only a primary winding 1.
  • Figure 2 instead illustrates the case in which there is also a secondary winding 10, which is connected to the voltage regulator circuit 4 and in particular in series to the regulator 8.
  • the reactor with electronic adjustment according to the invention fully achieves the intended aim, since the adjustment winding allows to vary the reactance that the reactor can introduce in a line, by acting specifically on the sinusoidal voltage generated by the adjustment winding, which can be added to, and subtracted from, the sinusoidal base voltage generated by the primary winding of the reactor.
  • the reactor thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the inventive concept; all the details may furthermore be replaced with other technically equivalent elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Electrical Variables (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

L'invention concerne un réacteur (1) à réglage électronique de la puissance réactive. Ce réacteur comprend au moins un enroulement principal (2) et un enroulement de réglage (3). Le réacteur décrit dans la présente invention se caractérise en ce qu'il comprend également un circuit (4) régulateur de tension connecté à l'enroulement principal et aux bornes de l'enroulement de réglage (100, 101) et qu'il est conçu pour produire un réglage alternatif de la tension, laquelle tension peut être ajoutée et/ou soustraite à une tension sinusoïdale produite par l'enroulement principal.
EP00945908A 1999-07-13 2000-07-05 Reglage electronique de la puissance reactive de reacteurs Withdrawn EP1198742A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMI991550 1999-07-13
IT1999MI001550A IT1313209B1 (it) 1999-07-13 1999-07-13 Reattore di tipo parallelo o serie, con regolazione elettronica dellapotenza reattiva.
PCT/EP2000/006611 WO2001004719A1 (fr) 1999-07-13 2000-07-05 Reglage electronique de la puissance reactive de reacteurs

Publications (1)

Publication Number Publication Date
EP1198742A1 true EP1198742A1 (fr) 2002-04-24

Family

ID=11383336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00945908A Withdrawn EP1198742A1 (fr) 1999-07-13 2000-07-05 Reglage electronique de la puissance reactive de reacteurs

Country Status (4)

Country Link
EP (1) EP1198742A1 (fr)
AU (1) AU5984300A (fr)
IT (1) IT1313209B1 (fr)
WO (1) WO2001004719A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997005536A1 (fr) * 1995-08-01 1997-02-13 N.V. Eneco Procede et dispositif de reglage et de regulation continus du rapport de spires d'un transformateur et transformateur pourvu d'un tel dispositif

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0764296A4 (fr) * 1994-04-06 1998-06-17 Utility Systems Technologies I Commutateurs en charge

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997005536A1 (fr) * 1995-08-01 1997-02-13 N.V. Eneco Procede et dispositif de reglage et de regulation continus du rapport de spires d'un transformateur et transformateur pourvu d'un tel dispositif

Also Published As

Publication number Publication date
IT1313209B1 (it) 2002-06-17
WO2001004719A1 (fr) 2001-01-18
ITMI991550A0 (it) 1999-07-13
AU5984300A (en) 2001-01-30
ITMI991550A1 (it) 2001-01-13

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