EP0223954B1 - Inductance pour redresseur commandé, en particulier pour installations de transmission de courant continu à haute tension - Google Patents

Inductance pour redresseur commandé, en particulier pour installations de transmission de courant continu à haute tension Download PDF

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Publication number
EP0223954B1
EP0223954B1 EP86112961A EP86112961A EP0223954B1 EP 0223954 B1 EP0223954 B1 EP 0223954B1 EP 86112961 A EP86112961 A EP 86112961A EP 86112961 A EP86112961 A EP 86112961A EP 0223954 B1 EP0223954 B1 EP 0223954B1
Authority
EP
European Patent Office
Prior art keywords
inductance
controlled rectifier
winding
choke
cooling tube
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.)
Expired
Application number
EP86112961A
Other languages
German (de)
English (en)
Other versions
EP0223954A1 (fr
Inventor
Reinhold Dipl.-Ing. Sundermann
Tibor Dr. Salanki
Paul Kukert
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT86112961T priority Critical patent/ATE45438T1/de
Publication of EP0223954A1 publication Critical patent/EP0223954A1/fr
Application granted granted Critical
Publication of EP0223954B1 publication Critical patent/EP0223954B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/18—Rotary transformers

Definitions

  • the invention relates to a valve throttle for high-voltage direct current transmission systems.
  • HVDC systems are generally used today to distribute electrical energy as a link between two three-phase systems; network-controlled controllable semiconductors (thyristors) convert the three-phase current on the transmitting side for transmission into direct current and on the receiving side back into three-phase current.
  • thyristors network-controlled controllable semiconductors
  • the highest achievable thyristor voltage is small compared to the valve voltage necessary for economical transmission.
  • a large number of thyristors must therefore be connected in series for an HGU valve.
  • a valve choke with a liquid-cooled choke coil and choke core is additionally connected in series with the individual thyristors.
  • each HVDC valve consists of a larger or smaller number of identical thyristor and throttle modules, which are combined in a tower-like manner in a tower base frame, depending on the voltage to be controlled.
  • a compact valve throttle should be able to be created using simple manufacturing technology, which can nevertheless ensure the insulation strength and freedom from partial discharge required for all load cases between the components which are under different voltages.
  • the arrangement of the entire choke coil winding in a potting block held in a frame by means of support pins and thus contactless to only one leg of the self-potted choke core allows a high insulation capacity and maximum creepage distances and thus a high level of freedom from partial discharge as well as very good cooling properties with a compact and easy-to-assemble structure.
  • a particularly high degree of compactness, in particular a low overall height, can be achieved for the choke coil mounted on only one leg of the choke core in that it has two layers with a first winding part and a second winding part concentric therewith and with a core potential center connection approximately in the center of the winding, i.e. is provided in the transition from the first winding part to the second winding part; as a result, the voltage stress between the choke core and the choke winding, which is supported in a cantilever manner to one leg of the choke core, can be reduced to half the nominal voltage, and the maximum necessary clearance or creepage distance can also be reduced by half.
  • valve throttle according to the invention is also contributed by the particularly good heat dissipation possibility, in particular by casting a cooling tube through which the cooling medium flows to the surrounding primary winding and, on the other hand, the non-casting of the choke core, in addition to which, in comparison to valve throttles with integrally molded choke coil and choke core, material accumulations and thus the Danger of increased material stresses due to different coefficients of thermal expansion can be avoided.
  • the clamping frame which is used on the one hand for fastening the throttle core and on the other hand for the self-supporting mounting of the choke coil, is made of plastic, which, in addition to a simple specific shape for the mounting receptacles, also results in additional losses in the sense of great compactness of the valve throttle can be reduced by stray fields.
  • a cutting band throttle core 5 In a ribbed plastic tenter frame 6, the most important parts of the valve throttle are a cutting band throttle core 5 and a casting block 1, into which a primary winding 2, 3 and a secondary winding 4 are cast.
  • the double U-shaped cutting band throttle core 5 held together by tensioning straps 52 is held in the tensioning frame 6 by means of tie rods 51.
  • One left leg of the cutting band choke core 5 is touchlessly encased by the casting block 1, in which the primary winding 2, 3 and the secondary winding 4 are cast.
  • the casting block 1 is supported in the clamping frame 6 in a cantilever manner to the left leg of the cutting band throttle core 5.
  • Rubber buffers 7 serve as lower receptacles, while funnel-shaped depressions 11 are cast into the casting block 1 as upper receptacles, engage in the stud screws 8, the penetration depth of which can be adjusted relative to the clamping frame 6 and can be fixed after the desired setting depth has been reached.
  • the primary winding 2, 3 of the choke coil is wound in two layers with a first winding part 2 with the outer connection 21 and and a second inner winding part 3 concentric with it, with an outer connection 31 and a core potential center connection M in the middle of the winding, ie in the transition area from the outer first winding part 2 to the inner second winding part 3.
  • a single-layer secondary winding 4 protrudes with its outer connections 41, 42 from the casting block 1.
  • a water-flowed stainless steel cooling tube 9 with the outer connections 91, 92 serves to cool the primary winding 2, 3;
  • the space between the cooling tube 9 and the primary winding - as can be seen from the partial section in the left part of FIG Potting compound 10 filled out.
  • the casting of the cooling tube provided here within the primary winding which is preferably designed as a hollow profile with a cooling tube running inside the hollow profile, it can also be ensured by expanding the pressure of the cooling tube or by shrinking the hollow profile onto the cooling tube that this is in particularly good thermal contact with the primary winding.
  • the leg of the cutting band choke core 5 encompassed by the potting block 1 is held in contact-free distance from the potting block 1 on all sides, so that compared to the usual windings wedged on the choke core, the dimensions are much higher in comparison Partial discharges exist or the throttle module can be built much more compactly with the same good prevention of partial discharges.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Power Conversion In General (AREA)
  • Rectifiers (AREA)

Claims (12)

1. Inductance de valve, notamment pour des installations de transport de courant continu à haute tension, présentant les caractéristiques suivantes:
a) la bobine d'arrêt (2, 3, 4) est disposée en console en étant distante, de tous côtés, d'une branche du noyau (5) de la bobine d'arrêt, dans un cadre de serrage (6);
b) la bobine d'arrêt (2, 3, 4) est enrobée, sur tous les côtés de son enroulement, et le bloc d'enrobage (1) est supporté dans le cadre de serrage
(6), par l'intermédiaire de supports (tampons en caoutchouc 7, goujons filetés 8);
c) le noyau (5) de la bobine d'arrêt est constitué par deux noyaux en forme de U et est fixé dans le cadre de serrage (4) (tirants 51).
2. Inductance de valve suivant la revendication 1, présentant la caractéristique suivante:
d) le noyau (5) de la bobine n'est pas enrobé.
3. Inductance de valve suivant la revendication 1 ou 2, présentant la caractéristique suivante:
e) la bobine d'arrêt (2, 3, 4) contient un enroulement primaire (2, 3) enroulé sur deux couches et comportant un premier élément d'enroulement (2) et un second élément d'enroulement (2) et un second élément d'enroulement (3) concentrique au précédent ainsi qu'une borne centrale (M) fournissant le potentiel du noyau et situé approximativement au centre de l'enroulement entre le premier élément d'enroulement (2) et le second élément d'enroulement (3).
4. Inductance de valve suivant l'une des revendications 1-3, présentant la caractéristique suivante:
f) l'enroulement primaire (2, 3) est constitué par un conducteur en cuivre à profil creux.
5. Bobine d'arrêt suivant la revendication 4, présentant la caractéristique suivante:
g) le conducteur en cuivre à profil creux est enroulé de chant.
6. Inductance de valve suivant l'une des revendications 1-5, présentant la caractéristique suivante:
h) l'enroulement primaire (2, 3) contient, en y étant relié par un étroit contact thermique, un tube de refroidissement (9) parcouru par un fluide de refroidissement.
7. Inductance de valve suivant la revendication 6, présentant la caractéristique suivante:
i) le tube de refroidissement (9) est relié à l'enroulement primaire enveloppant (2 ou 3), par un bon contact de transmission de la chaleur, à l'aide d'une masse intercalaire d'enrobage (10).
8. Inductance de valve suivant la revendication 6, présentant la caractéristique suivante:
j) le tube de refroidissement (9) est relié, notamment dans le cas de l'utilisation d'un conducteur en cuivre à profil creux comportant un tube de refroidissement (9) s'étendant à l'intérieur du profil creux, par un bon contact de transmission de la chaleur, à l'enroulement primaire enveloppant (2 ou 3), grâce à un montage par élargissement sous pression du tube de refroidissement (9) et/ou un montage par frittage à chaud de l'enroulement primaire (2, 3) sur le tube de refroidissement inséré (9).
9. Inductance de valve suivant l'une des revendications 1, 8, présentant la caractéristique suivante:
k) en dehors de l'enroulement primaire (2, 3), un enroulement secondaire (4) pouvant être raccordé à une résistance secondaire est scellé simultanément dans le bloc d'enrobage (1), en vue de l'obtention d'un amortissement électromagnétique réglable.
10. Inductance de valve suivant l'une des revendications 1-9, présentant la caractéristique suivante:
I) le cadre de serrage (6) et/ou d'autres moyens de fixation situés entre le cadre de serrage (6) et les composants, maintenus dans ce cadre, sont réalisés en une matière plastique.
EP86112961A 1985-10-01 1986-09-19 Inductance pour redresseur commandé, en particulier pour installations de transmission de courant continu à haute tension Expired EP0223954B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86112961T ATE45438T1 (de) 1985-10-01 1986-09-19 Ventildrossel, insbesondere fuer hochspannungsgleichstrom-¨bertragungsanlagen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3535018 1985-10-01
DE3535018 1985-10-01

Publications (2)

Publication Number Publication Date
EP0223954A1 EP0223954A1 (fr) 1987-06-03
EP0223954B1 true EP0223954B1 (fr) 1989-08-09

Family

ID=6282479

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86112961A Expired EP0223954B1 (fr) 1985-10-01 1986-09-19 Inductance pour redresseur commandé, en particulier pour installations de transmission de courant continu à haute tension

Country Status (6)

Country Link
US (1) US4775848A (fr)
EP (1) EP0223954B1 (fr)
JP (1) JPS6286706A (fr)
AT (1) ATE45438T1 (fr)
DE (1) DE3664973D1 (fr)
IN (1) IN163747B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4017750A1 (de) * 1990-06-01 1991-12-05 Abb Patent Gmbh Fluessigkeitsgekuehlte drosselspule
DE9307081U1 (de) * 1993-05-10 1993-07-01 Siemens AG, 8000 München Flüssigkeitsgekühlte Ventildrossel

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3258728A (en) * 1966-06-28 Electrical coil and lead wire assembly
US1471096A (en) * 1919-05-08 1923-10-16 Gen Electric Electrical apparatus
US1789229A (en) * 1929-03-09 1931-01-13 Wired Radio Inc Inductance coil
US2264057A (en) * 1940-08-21 1941-11-25 Gen Electric Coil support for electrical induction apparatus
US2413195A (en) * 1942-12-21 1946-12-24 Pacific Electric Mfg Corp High potential current transformer means
US2464029A (en) * 1945-04-07 1949-03-08 Gen Electric Method of making transformers
US2579522A (en) * 1946-02-04 1951-12-25 Ohio Crankshaft Co Transformer construction
GB630353A (en) * 1947-09-18 1949-10-11 Gen Electric Co Ltd Improvements in or relating to electric inductances
US2699531A (en) * 1950-09-02 1955-01-11 Bendix Aviat Corp Transformer core mounting
US2988715A (en) * 1958-09-02 1961-06-13 Zenith Radio Corp Sweep transformer
DE1137148B (de) * 1959-11-04 1962-09-27 Siemens Ag Haltevorrichtung fuer Ringkernpaare, vorzugsweise fuer Magnetverstaerker
FR1564936A (fr) * 1968-03-15 1969-04-25
FR2106643A5 (en) * 1970-09-18 1972-05-05 Anvar High tension power supply - for linear accelerator ion source
DE2133987C3 (de) * 1971-07-08 1974-04-25 Aeg-Elotherm Gmbh, 5630 Remscheidhasten Mittelfrequenz-Leistungstransformator mit einer einwindigen Sekundärwicklung
GB1470902A (en) * 1975-02-28 1977-04-21 Tioxide Group Ltd Electrical series reactor
DE2554143A1 (de) * 1975-11-28 1977-06-02 Siemens Ag Spannungswandler fuer hohe spannungen
DE2554142A1 (de) * 1975-11-28 1977-06-02 Siemens Ag Anordnung mit induktiven spannungswandlern
DE2642111A1 (de) * 1976-09-18 1978-03-23 Bosch Gmbh Robert Scheibenfoermiger leistungstransformator fuer die induktive erwaermung von metallischen werkstuecken
US4344126A (en) * 1980-10-03 1982-08-10 Ford Motor Company Low ripple D.C. power supply
DE3100419C2 (de) * 1981-01-09 1986-07-17 ANT Nachrichtentechnik GmbH, 7150 Backnang Übertrager hoher Leistungsdichte
DE3404457A1 (de) * 1984-02-08 1985-08-08 Siemens AG, 1000 Berlin und 8000 München Einrichtung zur kuehlung eines magnetsystems

Also Published As

Publication number Publication date
JPS6286706A (ja) 1987-04-21
DE3664973D1 (en) 1989-09-14
ATE45438T1 (de) 1989-08-15
IN163747B (fr) 1988-11-05
US4775848A (en) 1988-10-04
EP0223954A1 (fr) 1987-06-03

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