EP0223954A1 - 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
EP0223954A1
EP0223954A1 EP86112961A EP86112961A EP0223954A1 EP 0223954 A1 EP0223954 A1 EP 0223954A1 EP 86112961 A EP86112961 A EP 86112961A EP 86112961 A EP86112961 A EP 86112961A EP 0223954 A1 EP0223954 A1 EP 0223954A1
Authority
EP
European Patent Office
Prior art keywords
winding
feature
core
valve throttle
primary winding
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.)
Granted
Application number
EP86112961A
Other languages
German (de)
English (en)
Other versions
EP0223954B1 (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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp 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 HVDC valve.
  • a valve choke with a liquid-cooled choke coil and choke core is also 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 with 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 mounting pins and thus contact-free to only one leg of the self-potted choke core allows a high level of insulation and maximum creepage distances with a compact and easy-to-assemble construction, and thus a high degree of freedom from partial discharge as well as very good cooling properties.
  • 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. in the transition from the first winding part is provided for 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.
  • the particularly good possibility of heat dissipation also contributes to the compactness of the valve throttle according to the invention, in particular due to the casting a cooling pipe through which the cooling medium flows to the surrounding primary winding and, on the other hand, the non-potting of the choke core, material accumulations and thus the risk of increased material tensions due to different temperature expansion coefficients being advantageously avoided in comparison with valve chokes with an integrally molded choke coil and choke core.
  • 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 encased without contact 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 from the casting block 1 with its outer connections 41, 42.
  • a water-flowed stainless steel cooling tube 9 with the outer connections 91, 92 serves to cool the primary winding 2, 3; for better thermal contact between the cooling tube 9 and the secondary winding 2, 3, which is expediently surrounding in the form of an upright wound copper hollow profile conductor is the space between the cooling tube 9 and the primary winding - as can be seen from the partial section in the left part of Figure 2 - also filled with a potting compound 10.
  • 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)
  • Rectifiers (AREA)
  • Power Conversion In General (AREA)
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 true EP0223954A1 (fr) 1987-06-03
EP0223954B1 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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0459326A1 (fr) * 1990-06-01 1991-12-04 ABBPATENT GmbH Bobine de self refroidie par liquide
US5682292A (en) * 1993-05-10 1997-10-28 Siemens Aktiengesellschaft Liquid-cooled valve reactor

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2264057A (en) * 1940-08-21 1941-11-25 Gen Electric Coil support for electrical induction apparatus
GB630353A (en) * 1947-09-18 1949-10-11 Gen Electric Co Ltd Improvements in or relating to electric inductances
US2579522A (en) * 1946-02-04 1951-12-25 Ohio Crankshaft Co Transformer construction
US2699531A (en) * 1950-09-02 1955-01-11 Bendix Aviat Corp Transformer core mounting
DE1137148B (de) * 1959-11-04 1962-09-27 Siemens Ag Haltevorrichtung fuer Ringkernpaare, vorzugsweise fuer Magnetverstaerker
FR2106643A5 (en) * 1970-09-18 1972-05-05 Anvar High tension power supply - for linear accelerator ion source
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
EP0050432A1 (fr) * 1980-10-03 1982-04-28 Ford Motor Company Limited Transformateur
DE3404457A1 (de) * 1984-02-08 1985-08-08 Siemens AG, 1000 Berlin und 8000 München Einrichtung zur kuehlung eines magnetsystems

Family Cites Families (11)

* 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
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
US2988715A (en) * 1958-09-02 1961-06-13 Zenith Radio Corp Sweep transformer
FR1564936A (fr) * 1968-03-15 1969-04-25
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
DE3100419C2 (de) * 1981-01-09 1986-07-17 ANT Nachrichtentechnik GmbH, 7150 Backnang Übertrager hoher Leistungsdichte

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2264057A (en) * 1940-08-21 1941-11-25 Gen Electric Coil support for electrical induction apparatus
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
DE1137148B (de) * 1959-11-04 1962-09-27 Siemens Ag Haltevorrichtung fuer Ringkernpaare, vorzugsweise fuer Magnetverstaerker
FR2106643A5 (en) * 1970-09-18 1972-05-05 Anvar High tension power supply - for linear accelerator ion source
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
EP0050432A1 (fr) * 1980-10-03 1982-04-28 Ford Motor Company Limited Transformateur
DE3404457A1 (de) * 1984-02-08 1985-08-08 Siemens AG, 1000 Berlin und 8000 München Einrichtung zur kuehlung eines magnetsystems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0459326A1 (fr) * 1990-06-01 1991-12-04 ABBPATENT GmbH Bobine de self refroidie par liquide
US5682292A (en) * 1993-05-10 1997-10-28 Siemens Aktiengesellschaft Liquid-cooled valve reactor

Also Published As

Publication number Publication date
ATE45438T1 (de) 1989-08-15
JPS6286706A (ja) 1987-04-21
EP0223954B1 (fr) 1989-08-09
DE3664973D1 (en) 1989-09-14
US4775848A (en) 1988-10-04
IN163747B (fr) 1988-11-05

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