SE513385C2 - Rotary electric machine where the stator winding is a high voltage cable - Google Patents

Rotary electric machine where the stator winding is a high voltage cable

Info

Publication number
SE513385C2
SE513385C2 SE9703549A SE9703549A SE513385C2 SE 513385 C2 SE513385 C2 SE 513385C2 SE 9703549 A SE9703549 A SE 9703549A SE 9703549 A SE9703549 A SE 9703549A SE 513385 C2 SE513385 C2 SE 513385C2
Authority
SE
Sweden
Prior art keywords
stator
rotor
machine
machine according
cable
Prior art date
Application number
SE9703549A
Other languages
Swedish (sv)
Other versions
SE9703549L (en
SE9703549D0 (en
Inventor
Bengt Rothman
Original Assignee
Abb Ab
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 Ab filed Critical Abb Ab
Priority to SE9703549A priority Critical patent/SE513385C2/en
Publication of SE9703549D0 publication Critical patent/SE9703549D0/en
Priority to CN 98809645 priority patent/CN1272238A/en
Priority to EP98946757A priority patent/EP1020002A1/en
Priority to PL33955798A priority patent/PL339557A1/en
Priority to AU93706/98A priority patent/AU736226B2/en
Priority to ARP980104870 priority patent/AR017274A1/en
Priority to JP2000514376A priority patent/JP2001518774A/en
Priority to PCT/SE1998/001735 priority patent/WO1999017424A1/en
Priority to CA002305417A priority patent/CA2305417A1/en
Publication of SE9703549L publication Critical patent/SE9703549L/en
Priority to NO20001317A priority patent/NO20001317L/en
Publication of SE513385C2 publication Critical patent/SE513385C2/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
    • H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/16—Synchronous generators
    • H02K19/22—Synchronous generators having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/30—Windings characterised by the insulating material
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/40—Windings characterised by the shape, form or construction of the insulation for high voltage, e.g. affording protection against corona discharges
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/15—Machines characterised by cable windings, e.g. high-voltage cables, ribbon cables

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention relates to a rotating electric machine having a magnetic circuit for high voltage. The machine has a stator (11), the winding of which comprises a high-voltage cable (1), and a rotor (9) surrounding the stator (11).

Description

10 15 20 25 30 35 513 385 2 varv, varvid de lindningskabeln upptagande spåren i statorplå- tarna blir djupa och mängden statorplåt stor. 10 15 20 25 30 35 513 385 2 turns, whereby the winding cable receiving the grooves in the stator plate the teeth become deep and the amount of stator plate is large.

Syftet med föreliggande uppfinning är att lösa ovan- stående problem och möjliggöra en maskin med mindre stator och därigenom en anläggning som är dimensionsmässigt, men inte ef- fektmässigt mindre. Detta syfte uppnås genom att maskinen en- ligt uppfinning erhållit i de patentkraven angivna känneteck- nen.The object of the present invention is to solve the above standing problems and enable a machine with smaller stator and thereby a plant that is dimensionally, but not ef- fencing-wise less. This object is achieved by the machine invention obtained in the claims set out in the claims. nen.

Uppfinningen skall närmare beskrivas med hänvisning till bifogade ritningar, på vilka fig. 1 visar ett tvärsnitt genom en kabel, använd vid uppfinningen, fig. 2 visar ett axialsnitt genom en maskin enligt uppfinningen, utformad som en vattenkraftsgenerator, fig. 3 likaledes visar ett axialsnitt genom en annan utföringsform av maskinen enligt uppfinningen, 4 likaledes utföringsform av maskinen 5 likaledes utföringsform av maskinen fig. visar ett axialsnitt genom ännu en enligt uppfinningen och fig. visar ett axialsnitt genom ännu en enligt uppfinningen.The invention will be described in more detail with reference to the accompanying drawings, on which Fig. 1 shows a cross section through a cable, used in the invention, Fig. 2 shows an axial section through a machine according to the invention, designed as a hydropower generator, Fig. 3 likewise shows one axial section through another embodiment of the machine according to the invention, 4 likewise embodiment of the machine 5 likewise embodiment of the machine Fig. shows an axial section through another according to the invention and Fig. shows an axial section through another according to the invention.

Uppfinningen är i första hand tänkt att användas vid och dess fördelar blir särskilt framträdande med en högspän- (fig. l) ett kärnan omslutande inre halvle- ningskabel 1 av det slag som är uppbyggd av en kärna med ett flertal kardeler 2, dande skikt 3, ett det inre halvledande skiktet omslutande isolerande skikt 4 och ett det isolerande skiktet omslutande yttre halvledande skikt 5. en diameter i intervallet 20-200 mm och en ledningsarea i Speciellt avses en dylik kabel med intervallet 80-3000 mmz. Kabeln omfattar i detta sammanhang således ej det yttre skyddshölje som normalt omger en kabel vid kraftdistribution.The invention is primarily intended to be used in and its benefits become particularly prominent with a high-voltage (Fig. 1) a core enclosing the inner hemisphere cable 1 of the kind made up of a core with a plurality of strands 2, layer 3, enclosing the inner semiconductor layer insulating layer 4 and enclosing the insulating layer outer semiconductor layer 5. a diameter in the range 20-200 mm and a conduit area in Such a cable is especially meant range 80-3000 mmz. The cable includes in this context thus not the outer protective sheath which normally surrounds a cable in power distribution.

Den isolerade ledaren eller högspänningskabeln som används vid föreliggande uppfinning är flexibel och böjlig och av det slag som närmare beskrivs i WO 97/45919 och WO 97/45847.The insulated conductor or high voltage cable as used in the present invention is flexible and pliable and of the kind described in more detail in WO 97/45919 and WO 97/45847.

Ytterligare beskrivning av den isolerade ledaren eller kabeln finns i WO 97/45918, WO 97/45930 och WO 97/45931. l som visar den detalj som avser den isolerade att de I fig. ledaren eller kabeln, är de tre skikten utförda så, 10 15 20 25 30 35 513 385 3 vidhäftar varandra även då kabeln böjes. Den visade kabeln är flexibel och denna egenskap bibehålles hos kabeln under dess livslängd.Additional description of the insulated conductor or cable are found in WO 97/45918, WO 97/45930 and WO 97/45931. l showing the detail relating to the isolated that they In FIG. conductor or cable, the three layers are designed so, 10 15 20 25 30 35 513 385 3 adhere to each other even when the cable is bent. The cable shown is flexible and this property is maintained in the cable below it life span.

I fig. 1 visas i axialsnitt en första utföringsform av en roterande högspänningsmaskin enligt uppfinningen, i detta fall utformad som en vattenkraftsgenerator. axeln 6, som i detta fall är lagrad i ett enda styrlager 7, är På turbin- rotorekrarna 8 fästa. Dessa uppbär rotorn 9 med sin magnetise- ringslindning 10. Statorn 11 uppbäres underifrån på ett fast underlag 12, och statorlindningen 13 skjuter med sina härvän- dar 14 ut från statorn 11.Fig. 1 shows in axial section a first embodiment of a rotary high voltage machine according to the invention, i this case designed as a hydropower generator. the shaft 6, which in this case is mounted in a single guide bearing 7, is On turbine the rotor crevices 8 attached. These support the rotor 9 with their magnetizing The stator 11 is supported from below on a solid substrate 12, and the stator winding 13 projects with its 14 from the stator 11.

I jämförelse med tidigare föreslagna högspännings maskiner har alltså statorn och rotorn bytt plats på ömse sidor om luftgapet 15. Detta innebär att spårdjupet 16 för statorlindningen 13 blir mindre liksom mängden statorplåt för en given luftgapsdiameter 17.In comparison with previously proposed high voltage machines, the stator and rotor have thus changed places on each other sides of the air gap 15. This means that the groove depth 16 for the stator winding 13 becomes smaller as does the amount of stator plate a given air gap diameter 17.

Med 18 betecknas bromsar för rotorn 9, anordnade på det fasta underlaget 12 för friktionsingrepp med rotorn. De i fig. 1 visade pilarna antyder strömningen av kylluft genom statorn 11.18 denotes brakes for the rotor 9, arranged on the fixed base 12 for frictional engagement with the rotor. The i The arrows shown in Fig. 1 indicate the flow of cooling air through stator 11.

Polerna 21 på rotorn är utpräglade, och genom att dessa är placerade på rotorns 9 insida mot statorn 11 kan rotorringen utan risk köras med höga varvtal utan att några problem föreligger med dennas hållfasthet, som annars kan vara fallet i det högre varvtalsregistret.The poles 21 on the rotor are pronounced, and by these are located on the inside of the rotor 9 against the stator 11 can the rotor ring without risk is run at high speeds without any there are problems with its strength, which may otherwise be the case in the higher speed register.

I fig. 3-5 visas tre andra utföringsformer av maski- nen enligt uppfinningen, utformad som en vattenkraftsgenera- tor. Här framgår hur man på olika sätt kan utnyttja generator- gropen 22 mer eller mindre väl. I fig. 3 visas statorn 11 hängande i den fasta balken 19, medan rotorn 9 uppbäres av nedanför statorn anordnade ekrar 8. I detta fall krävs emel- lertid två styrlager 7 och 20 för axeln 6.Figures 3-5 show three other embodiments of the machine. according to the invention, designed as a hydropower generator tor. Here's how to use generator power in different ways. pit 22 more or less well. Fig. 3 shows the stator 11 hanging in the fixed beam 19, while the rotor 9 is supported by spokes arranged below the stator 8. In this case, however, however, two guide bearings 7 and 20 for the shaft 6.

I fig. 3 rotorekrarna 8 är anordnade under statorn 11. 4 visas en variant av maskinen, där liksom i fig. Genom att ekrarna 8 lutar snett uppåt utnyttjas generatorgropen 22 bätt- re och totalhöjden blir mindre. Fortfarande krävs dock två styrlager 7 och 20. 10 15 20 25 513 385 4 I fig. 5 visas en ännu mer komprimerad variant med ännu mer lutande ekrar 8. Maskinen har därmed komprimerats så pass att man här kan nöja sig med ett styrlager 7.In FIG. The rotor crevices 8 are arranged under the stator 11. 4 shows a variant of the machine, where as in Fig. By the spokes 8 are inclined upwards, the generator pit 22 is better used. re and the total height becomes smaller. However, two are still required guide bearings 7 and 20. 10 15 20 25 513 385 4 Fig. 5 shows an even more compressed variant with even more inclined spokes 8. The machine has thus been compressed in this way make sure that you can settle here with a guide bearing 7.

Rotorn 9 och statorn ll kan vara sà dimensionerade att vid nominell spänning, nominell effektfaktor och övermag- netiserad drift de termiskt baserade stator- och rotorström- gränserna överskrids ungefär samtidigt. Det kan emellertid även vara sà dimensionerade att vid nominell spänning, nomi- nell effektfaktor och övermagnetiserad drift den termiskt baserade statorströmgränsen överskrids innan den termiskt baserade rotorströmgränsen överskrids. Maskinen har lämpligen vid nominell spänning, nominell effektfaktor och övermagne- tiserad drift 100% överlastkapacitet under två timmar. Den synkrona reaktansen i tvärled är lämpligen väsentligt mindre än den synkrona reaktansen i direktled. Maskinen är lämpligen utrustad med magnetiseringssystem, som möjliggör en negativ och positiv magnetisering.The rotor 9 and the stator 11 can be so dimensioned that at nominal voltage, nominal power factor and over- networked operation the thermally based stator and rotor currents the limits are exceeded at about the same time. It can, however also be so dimensioned that at nominal voltage, nomi- power factor and over-magnetized operation it thermally based stator current limit is exceeded before the thermal based rotor current limit is exceeded. The machine has convenient at nominal voltage, nominal power factor and over- 100% overload capacity for two hours. The the synchronous transverse reactance is suitably substantially less than the direct synchronous reactance. The machine is convenient equipped with magnetization system, which allows a negative and positive magnetization.

I maskinen är lämpligen statorlindningens faser Y- kopplade. Därvid kan statorlindningens Y-punkt vara isolerad och skyddad från överspänningar med ventilavledare, Stator- lindningens Y-punkt kan emellertid även vara jordad med hjälp av ett tredjetonsfilter, alltså ett spärrfilter mellan Y-punkt och jord. Spärrfiltret kan då vara så utformat att det kraf- tigt minskar alternativt eliminerar tredjetonsströmmar genom maskinen, samtidigt som den dimensioneras så, att spänningar och strömmar begränsas vid fel i systemet. Tredjetonsfiltret kan vara skyddat mot överspänningar med ventilavledare, kopp- lad parallellt med tredjetonsfiltret.In the machine, phases of the stator winding are suitably Y- linked. In this case, the Y-point of the stator winding can be insulated and protected from overvoltages with valve diverters, Stator however, the Y-point of the winding can also be grounded by means of of a third-tone filter, ie a blocking filter between Y-points and soil. The barrier filter can then be designed so that it reduces or eliminates third-tone currents through the machine, while it is dimensioned so that voltages and currents are limited in the event of a fault in the system. The third tone filter can be protected against overvoltages with valve diverters, charge parallel to the third-tone filter.

Claims (7)

10 15 20 25 513 385 PATENTKRAV10 15 20 25 513 385 PATENT REQUIREMENTS 1. Roterande elektrisk maskin med en magnetkrets för högspånning, kânnetecknad av en stator (ll), vars lindning består av högspänningskabel (1), och en rotor (9), som omger statorn (11), (1) omgiven av en fast isolator med ett inre skikt med halvledande varvid kabeln omfattar en böjlig ledare, egenskaper, en isolerande_del och ett yttre skikt med halv- isolerande egenskaper.A rotating electric machine with a high-voltage magnetic circuit, characterized by a stator (II), the winding of which consists of a high-voltage cable (1), and a rotor (9), which surrounds the stator (11), (1) surrounded by a fixed insulator with an inner layer with semiconductor, the cable comprising a flexible conductor, properties, an insulating_part and an outer layer with semi-insulating properties. 2. Maskin enligt patentkrav 1, kännetecknad av att skikten är inrättade att vidhäfta varandra, även då kabeln böjes.Machine according to claim 1, characterized in that the layers are arranged to adhere to each other, even when the cable is bent. 3. Maskin enligt patentkravet 1 eller 2, kännetecknad av att rotorn (9) är fast förbunden med maskinens axel (6) för ut- eller ingående rörelseenergi via förbi statorn (11) sig (17). pMachine according to Claim 1 or 2, characterized in that the rotor (9) is fixedly connected to the shaft (6) of the machine for output or input kinetic energy via the stator (11) itself (17). p 4. Maskin enligt patentkravet 3, kânnetecknad av att stràckande ekrar statorn (11) uppbäres underifrån på ett fast underlag (12) och att rotorn (9) uppbäres ovanifràn av över statorn (11) från maskinaxeln (6) sig sträckande ekrar (8).Machine according to claim 3, characterized in that extending spokes of the stator (11) are supported from below on a solid support (12) and that the rotor (9) is supported from above by extending spokes (8) over the stator (11) from the machine shaft (6). . 5. Maskin enligt patentkravet 3, kånnetecknad av att statorn (11) uppbäres ovanifràn av fasta radiella balkar (19) och att rotorn (9) uppbäres underifrån av under statorn (11) från maskinaxeln (6) sig sträckande ekrar (8).Machine according to claim 3, characterized in that the stator (11) is supported from above by fixed radial beams (19) and that the rotor (9) is supported from below by spokes (8) extending below the stator (11) from the machine shaft (6). 6. Maskin enligt patentkravet 4 eller 5, kânnetecknad av att bromsarna (18) för rotorn är anordnade på det fasta underlaget (12) för friktionsingrepp med rotorn (9).Machine according to Claim 4 or 5, characterized in that the brakes (18) for the rotor are arranged on the fixed base (12) for frictional engagement with the rotor (9). 7. Maskin enligt något av patentkraven 1-6, kânnetecknad av att rotorn (9) uppbär utpräglade poler (21).Machine according to one of Claims 1 to 6, characterized in that the rotor (9) carries pronounced poles (21).
SE9703549A 1997-09-30 1997-09-30 Rotary electric machine where the stator winding is a high voltage cable SE513385C2 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
SE9703549A SE513385C2 (en) 1997-09-30 1997-09-30 Rotary electric machine where the stator winding is a high voltage cable
CA002305417A CA2305417A1 (en) 1997-09-30 1998-09-29 Rotating electric machine with magnetic circuit
AU93706/98A AU736226B2 (en) 1997-09-30 1998-09-29 Rotating electric machine with magnetic circuit
EP98946757A EP1020002A1 (en) 1997-09-30 1998-09-29 Rotating electric machine with magnetic circuit
PL33955798A PL339557A1 (en) 1997-09-30 1998-09-29 Rotary electric machine with a magnetic circuit
CN 98809645 CN1272238A (en) 1997-09-30 1998-09-29 Rotating electric machine with magnetic circuit
ARP980104870 AR017274A1 (en) 1997-09-30 1998-09-29 ROTATING ELECTRIC MACHINES WITH MAGNETIC CIRCUIT
JP2000514376A JP2001518774A (en) 1997-09-30 1998-09-29 Rotary electric machine with magnetic circuit
PCT/SE1998/001735 WO1999017424A1 (en) 1997-09-30 1998-09-29 Rotating electric machine with magnetic circuit
NO20001317A NO20001317L (en) 1997-09-30 2000-03-14 Rotating electric machine with magnetic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9703549A SE513385C2 (en) 1997-09-30 1997-09-30 Rotary electric machine where the stator winding is a high voltage cable

Publications (3)

Publication Number Publication Date
SE9703549D0 SE9703549D0 (en) 1997-09-30
SE9703549L SE9703549L (en) 1999-03-31
SE513385C2 true SE513385C2 (en) 2000-09-04

Family

ID=20408445

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9703549A SE513385C2 (en) 1997-09-30 1997-09-30 Rotary electric machine where the stator winding is a high voltage cable

Country Status (10)

Country Link
EP (1) EP1020002A1 (en)
JP (1) JP2001518774A (en)
CN (1) CN1272238A (en)
AR (1) AR017274A1 (en)
AU (1) AU736226B2 (en)
CA (1) CA2305417A1 (en)
NO (1) NO20001317L (en)
PL (1) PL339557A1 (en)
SE (1) SE513385C2 (en)
WO (1) WO1999017424A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020191731A (en) * 2019-05-22 2020-11-26 日新電機株式会社 Harmonic filter device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4258280A (en) * 1975-11-07 1981-03-24 Bbc Brown Boveri & Company Limited Supporting structure for slow speed large diameter electrical machines
US4475075A (en) * 1981-10-14 1984-10-02 Munn Robert B Electric power generator and system
US5036165A (en) * 1984-08-23 1991-07-30 General Electric Co. Semi-conducting layer for insulated electrical conductors
JPH0123900Y2 (en) * 1984-11-08 1989-07-20
DE3543106A1 (en) * 1985-12-06 1987-06-11 Kabelmetal Electro Gmbh ELECTRIC CABLE FOR USE AS WINDING STRING FOR LINEAR MOTORS

Also Published As

Publication number Publication date
CA2305417A1 (en) 1999-04-08
AR017274A1 (en) 2001-09-05
JP2001518774A (en) 2001-10-16
SE9703549L (en) 1999-03-31
PL339557A1 (en) 2000-12-18
NO20001317D0 (en) 2000-03-14
AU736226B2 (en) 2001-07-26
SE9703549D0 (en) 1997-09-30
WO1999017424A1 (en) 1999-04-08
EP1020002A1 (en) 2000-07-19
AU9370698A (en) 1999-04-23
CN1272238A (en) 2000-11-01
NO20001317L (en) 2000-03-14

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