PF Coils 2-6 Supply Scope of the project and main technical aspects

Size: px

Start display at page:

Download "PF Coils 2-6 Supply Scope of the project and main technical aspects"

Alexis Gilmore
5 years ago
Views:

1 PF Coils 2-6 Supply Scope of he projec and main echnical aspecs PF Coils formaion Meeing Barcelona - 15 h Ocober 2012 This presenaion is inended for reference purposes only and is no a legally binding documen

2 Conens roducion Scope of he PF Coils 2-6 manufacuring (Technical Specificaion) Slide 2

3 ITER PF Magne Sysem roducion Conex; PF Coils wihin ITER machine ITER Poloidal Field Coils Slide 3

4 ITER PF Magne Sysem roducion 6 coils Main Feaures: ~1 m Circular coils Suppored on TF DP 2-in-hand windings RF: PF1 EU: PF2~PF6 Slide 4

5 PF Coils Parameers roducion PF2 PF3 PF4 PF5 PF6 Maximum oper. curren per urn (ka) (52) Coil curren capaciy (MA*urns) (23.88) Bah emperaure (K) (3.8) Peak magneic field (T) (6.8) Maximum operaing erminal volage (including fas discharge, kv) Turn-o-urn (radial) maximum operaing volage (kv) Terminal volage (kv) in fauled operaion Tes DC Volage (kv) Ground o Terminal Slide 5

6 Weigh of PF coils roducion PF coil NbTi Srand Conducor Winding Pack Clamps + proecion cover + spacers (Uni : on) PF PF PF PF PF Toal 32% Conribuion of main componens per coil, averaged 6% 62% Conducor 32% 62% sulaion and resin 6% Clamps + proecion cover + spacers Slide 6

ITER PF Magne Sysem Scope Projec Scope Supply of he Poloidal Field

K on all he coils Manufacuring in PF Building in Cadarache France

packages, each of which is envisaged o be carried-ou by paries

7 ITER PF Magne Sysem Scope Projec Scope Supply of he Poloidal Field Coils (PF2-PF6 Coils) of he ITER magne sysem To make a cold es a 77 K on all he coils Manufacuring in PF Building in Cadarache France (due o he big size) The projec is composed of several primary work packages, each of which is envisaged o be carried-ou by paries drawing upon heir specialis srenghs under one or more conrac ITER Supply (free issue ma.) Conducors Clamps Auxiliary equipmen This presenaion provides common informaion ha refers o he projec in general. Slide 7

8 ITER PF Magne Sysem Scope Coil Manufacure a ITER sie in Cadarache, France PF Coil Building, compleed April 2012 Slide 8

overlapping pancakes forming ogeher one double pancake He inles are a inner urns of each DP Double pancakes are arranged wih accessible joins on

9 Main Concep Operaing field a PF coils is relaively low, i.e. wih respec o TF (<7T) -> NbTi conducor was chosen 2-in-hand: PF coils are wound as wo overlapping pancakes forming ogeher one double pancake He inles are a inner urns of each DP Double pancakes are arranged wih accessible joins on ouside and preinsalled jumper cables Large forces -> Robus srucural componens: Sainless Seel Jackes are used for he superconducor, designed o operae a high operaing fields and for a large number of cycles (60,000) -> Large seel fabricaion (welding, forging, ec.) wih igh olerances Slide 9

10 PF Conducor design NbTi Cable in- Condui Conducor ( CICC ) PF 6 Slide 10

11 2-in-hand winding 2 conducors (Yellow and Red) wound in parallel in a DP DP-join connecs one end of each conducor o he anoher DPs PJ join connecs he 2 conducors in he middle of he DP Slide 11

12 Double Pancake Cooling Scheme o o o 2-in-hand for all PF coil He inle in he verical joggle and inner radius He oule in he join area. Slide 12

13 Double Pancake Parameers Toal conducor lengh, incl. joins and erminals (m) conducor uni lengh supplied (m) Number of uni lengh Number of Turns Nr Nz, Toal PF ( 2 x 6) PF (2 x 8) PF (2 x 8) PF (2 x 8) PF (2 x 9) Slide 13

1.2 = 0.4 (bounding layer)+0.8 (pancake shim) Conducor sulaion 5 layers of inerleaved polyimide and fiberglass wih 50% overlapping + 1 layer of 50% overlapped fiberglass.

14 1.2 = 0.4 (bounding layer)+0.8 (pancake shim) Conducor sulaion 5 layers of inerleaved polyimide and fiberglass wih 50% overlapping + 1 layer of 50% overlapped fiberglass. Pancake insulaion Conducor insulaion SS Jacke Superconducing srands Cable wrapping Turn shim Turn shim Cenral spriral Subcable wrapping Shims o compensae for mechanical olerances Slide 14

15 1.2 pancake insulaion 1.2 pancake insulaion 1.2 (pancake insulaion) + 2 (DP shim) + 1 (bounding layer) Ground sulaion Pancake insulaion, shims, bounding layer fiberglass 9 layers of inerleaved polyimide and fiberglass wih 50% overlapping + 1 layer of 50% overlapped fiberglass. Proecion wrap G10 plae 1 urn shim 8 ground insulaion 2 proecion wrap Slide 15

16 He les He inles are in he inner urn of each DP, in he middle of he verical joggle They are embedded in a longiudinal 450 mm long machined groove Cover wih ube welded on he groove Groove Conducor Cover wih ube Slide 16

17 To bus bar He le and oule Termin al He DP 1 Join inle DP 2 To DP3 He inle are locaed on he inner urn ransiion of he coil o opimize he emperaure margin, by his way i is in he middle of each conducor lengh, sharing equally he helium pah. 1 He inle per conducor. He oules are locaed a each join. Slide 17

18 Tail Funcion of he ail is o ransfer he longiudinal ensile (or compression) force from he coil erminaion end of he oumos conducor o he adjacen urns Elecrically insulaed Toal lengh is shorer han 600 mm Cross secion wihin he conducor dimensions Slide 18

Coil joins There are four ypes of joins in he PF coil: 1) Pancake Join: Joins beween he wo conducors wihin a

o he jumper when bypassing a fauled DP The conducor cable end is pressed ino a bi-meallic box, machined from

The box is welded o he jacke of he conducor on one end wih a sainless seel pipe.

19 Coil joins There are four ypes of joins in he PF coil: 1) Pancake Join: Joins beween he wo conducors wihin a DP 2) DP Join: Joins beween wo double pancakes 3) Terminal Join: Joins of he erminals 4) Jumper Join: Joins o he jumper when bypassing a fauled DP The conducor cable end is pressed ino a bi-meallic box, machined from an explosively bonded sainless seel-copper plae. The box is welded o he jacke of he conducor on one end wih a sainless seel pipe. The copper soles of wo erminaions are soldered ogeher and form he elecrical connecion Triangular sainless seel wedges were added o ransfer load beween he wo win-box halves around he copper. Slide 19

Join Suppor The win-box joins are locaed abou

The joins are subjec o Lorenz forces from he

20 Join Suppor The win-box joins are locaed abou 70 mm in he radial direcion from he winding pack and he join lengh ouside he winding pack is abou 2.3 m. The joins are subjec o Lorenz forces from he ineracion of he join curren wih magneic field generaed by coils and plasma curren. Slide 20

Terminal Connecion Thermal conracion (when coil cool down o 4K)

designed o carry and ransfer he load o he winding pack and i

igh olerances The erminal box consiss of spacer, can, cenral

21 Terminal Connecion Thermal conracion (when coil cool down o 4K) and EM forces are acing on he erminals The erminal box is designed o carry and ransfer he load o he winding pack and i also needs o be elecrically isolaed Heavy componens, some wih igh olerances The erminal box consiss of spacer, can, cenral plae, cenral isolaion plae and clamp for He pipe and win box join. Slide 21

22 sulaion breaks Cooling pipe inles and oules mus conain an elecrical insulaing break capable of supporing he ground poenial of he coil The breaks separae he meallic cooling pipes using an insulaed ube (epoxy or ceramic-based) o avoid breakdown hrough he inernal helium. Welding hem ino he supply lines. Only heir assemblies are in he scope of he projec (hey will be provided by ITER Organizaion) Slide 22

Coil Jumpers If faul appears during he operaion due o: Elecrical shor beween he wo conducors Helium leak hrough Jacke or join Box he fauled DP joins (on he coil ouer radius) o be disconneced he

23 Coil Jumpers If faul appears during he operaion due o: Elecrical shor beween he wo conducors Helium leak hrough Jacke or join Box he fauled DP joins (on he coil ouer radius) o be disconneced he jumpers cables o be brough and conneced hem o he remaining good DPs. The join insulaion and helium pipes o be Rebuil/checked All he aciviy needed in case a faul are ou of he scope of he projec. Slide 23

24 Clamp & Proecion cover Coil clamps, ~1 m wide (~ 4.8 T for PF5), are equally spaced around he winding pack. Only heir assemblies are in he scope of he projec (hey will be provided by China Domesic agency) The winding body wih ground insulaion, high poenial cooling pipes from all joins and erminaions of he coil are covered by proecion cover (included in he scope) The proecion covers consiss of secion of recangular box of 304L seel, which surrounds he four sides of he coils beween he PF clamp suppors. Proecion cover suppor clamps Slide 24

25 Auxiliary equipmen Several ypes of auxiliary equipmen will be provided by ITER Organizaion and so only heir assembly is in he scope of he projec: sulaion breaks Proecion resisors for volage aps High and low volage cable connecors Temperaure sensors Pressure sensors Slide 25

26 Auxiliary equipmen Several ypes of auxiliary equipmen will be provided by ITER Organizaion and so only heir assembly is in he scope of he projec: sulaion breaks Proecion resisors for volage aps High and low volage cable connecors Temperaure sensors Pressure sensors Slide 26

27 THANK YOU FOR YOUR ATTENTION Slide 27

COMBITRON Program Schedule

COMBITRON Program Schedule OMBITRO Program Schedule OMBITRO are supply and acuaor modules for he elecromagne cluches and brakes. As power supply for D- or A-side swiching differen single-wave and bridge recifiers as well as rapid