NLC Solid State Induction Modulator LC02 Update Feb

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NL Solid State Induction Modulator L02 Update Feb 5 2002 SLA: R.assel, M.Nguyen,.

1 NL Solid State Induction Modulator L02 Update Feb SLA: R.assel, M.Nguyen,. Pappas, J. delamare LLNL:. ook, J. Sullivan, S. Hawkins BN:. Brooksby, J. Yuhas

2 Klystron PPM focus Slide 2

3 onceptual NL Solid State Induction Modulator 75MW PPM Klystrons 1:3 HV Xfmr IBT Induction Dual Stack 500 kv Drive Line Oil tank Slide 3

4 Present modulator Problems! Line Type Modulator Low fficiency 50%-65% (Rise time of pulse) Low Availability Thyraton and High Voltage ost High Hand Assembly and High Voltage Performance Needs hands on tuning New Type Modulator High fficiency >80% High Availability All Solid State Low ost Repetitive Factory Fabrication Performance Remote adjustment of wave shape Slide 4

5 NL SOLID STAT INDUTION MODULATOR FOR X-BAND KLYSTRON FRATIONAL TURN PULS TRANSFORMR MULTIPL PRIMARIS ON ND ROUNDD A with 3 turn Secondary Primary uses low losses Metglas cores SONDARY ONNTD IN SRIS A, 1040 Meg watts for 3.2µs, 500 kw Ave. SOLID STAT IBT DRIVR IBT AR BIPOLAR TRANSISTOR WITH FT INPUT AT 92 IBT s (two per Primary) 3200 Amps for 3.2µs 4000 volts per IBT 6.5kV-600 A Slide 5

6 Modulator R&D Program Four Main Programs: 1. 4-Dog: Full power prototype driving four 5045s. In progress 2. Short-Stack: allery prototype driving one 5045 with standard pulse transformer in SLA Linac. In progress 3. Move Prototype to NLTA to drive three 75XP3 with new Tank design. Summer 2002 In progress 4. DFM 8-Packs: Design/build a DFM prototype Using 6.5kv IBTs, By mid FY 2003, for NLTA. Drive 8 75X klystrons as available. Slide 6

7 Induction Modulator Prototype Four Dog Test (NL Operation) Four 5045 Klystrons (ight 75 MW PPMs) 380kV, 420 A ach (500 kv, 250 A) 650 MW, 3.2µs pulse (1000 MW, 3µs Pulse) 300 kw 120 PPS (500 kw) Slide 7

8 SOLID STAT INDUTION MODULATOR PROTOTYP 4 DO ORS AND SONDARY A 3 Turn Secondary A, 650 Meg watts for 3.2µs, 300 kw Ave. SOLID STAT DRIVRS 162 IBT s Drivers (two per Primary) 1800 volts per IBT 3300V 800A 2700 Amps per Driver Slide 8

9 NL Solid State Induction Simplified Schematic "4 Dog" Induction Modulator Test 500 kv Max 2080 A Max IBT DRI 1,2 D1 3kv + 1/3/1 T D1 3kv 72 more IBT Drivers 36 more ORs 1,2 152 IBT Drivers total 76 ORs total IBT DRI 1,2 1,2 D1 D1 3kv T 3kv 1/3/1 IBT DRI + 72 more IBT Drivers 36 more ORs + IBT DRI + 1,2 1,2 IBT DRI 1,2 D1 3kv IBT DRI 1,2 D1 3kv IBT DRI 1,2 D1 3kv IBT DRI 1,2 D1 3kv IBT DRI 1,2 D1 3kv 1/3/1 D1 1,2 T 3kv 1/3/1 D1 1,2 T 3kv 1/3/1 D1 1,2 T 3kv 1/3/1 D1 1,2 T 3kv 1/3/1 D1 1,2 T 3kv IBT DRI IBT DRI IBT DRI IBT DRI IBT DRI D1 3kv IBT DRI 1,2 D1 3kv IBT DRI 1,2 D1 3kv IBT DRI 1,2 D1 3kv IBT DRI 1,2 D1 3kv IBT DRI D1 T 3kv 1/3/1 1,2 D1 T 3kv 1/3/1 1,2 D1 T 3kv 1/3/1 1,2 D1 T 3kv 1/3/1 1,2 D1 T 3kv 1/3/1 IBT DRI IBT DRI IBT DRI IBT DRI IBT DRI 4 ea 5045 KLYSTRON 400 kv 1800 A 3 usec 725 MW pulse 350 kw 120 Hz fficiency > 80% Slide 9

10 MODULATOR OR & AS 6.5 ID double ended drive core Volt-Sec core 2.2kV 3 us 0.5 Joules loss Slide 10

11 Insulated ate Bipolar Transistor IBT AT DRIVR TRATION IBT UP 3300V 800 A FAILUR RAT <50 FIT (x10-9 hr) TRAINS Slide 11

12 IBT Drivers and ore core round Slide 12

13 Prototype Solid State Induction Modulator ore stack Drivers Single turn secondary ore Stack with drivers Slide 13

14 NL Induction Modulator Pulse One Turn Secondary 38 Metglas cores 76 IBT Drivers With Load apacitance 9 drivers delay turn on Slide 14

15 NL Solid State Induction 76 stack short circuit test Slide 15

16 Prototype Solid State Induction Modulator oaxial Three Turn Secondary nd onnection Slide 16

17 Prototype 4 Dog Solid State Induction Modulator 3 turn Secondary with water load With oil tank installed Slide 17

18 Prototype Induction Modulator Pulse Water Load Three Turn Secondary Turn On Delayed in 20 cells Slide 18

19 Prototype Induction Modulator Pulse Water Load Three Turn Secondary 76 Metglas cores 152 IBT Drivers Slide 19

20 Prototype Induction Modulator Pulse 2 each 5045 Klystrons 400 Kv, 900 Amps 3 usec Three Turn Secondary 76 Metglas cores 152 IBT Drivers Ratio Vout/Vin = Volts D Slide 20

21 ompare Induction Modulator Pulse with PFN 5045 Klystrons Pulse Voltage 350 kv, 3.0 usec 375 Amps PFN 750 amps Induction Modulator waveform efficiency ~89% Overall efficiency >80% Slide 21

22 NL Solid State Induction 500kW power supply Output transformer rectifier Power line input Buck regulator and switcher Slide 22

23 Solid State Induction Modulator Short Stack Klystron Tests 5045 klystron & Pulse transformer Slide 23

5045 model Short Stack Table Top Modulator IBT DRIVR ollector RN rid +15V mitter DRVn1 10

sections + + 1 100ufd 3kv 23 kv, 6.0 ka IBT DRIVR Q31 D31 8kv T31 ollector 0.

D21 8kv T21 ollector RN 22 rid +15V 1/1 mitter 2 ea 50ufd 400v DRV21 11 100ufd 3kv IBT DRIVR 1

24 5045 model Short Stack Table Top Modulator IBT DRIVR ollector RN rid +15V mitter DRVn ufd 3kv Dn1 8kv T10 Qn1 23 kv n A 1/1 50ufd 400v 2 ea IBT drivers 10 OR sections ufd 3kv 23 kv, 6.0 ka IBT DRIVR Q31 D31 8kv T31 ollector V-Sec RN 2 3 usec rid +15V 1/1 mitter 2 ea 50ufd 400v DRV ufd 3kv IBT DRIVR Q21 D21 8kv T21 ollector RN 22 rid +15V 1/1 mitter 2 ea 50ufd 400v DRV ufd 3kv IBT DRIVR 1 D11 8kv T11 ollector RN 12 rid +15V 1/1 mitter 2 ea 50ufd 400v 5045 KLYSTRON 340 kv 396 A 3 us 1/15 Pulse Transformer Slide 24

25 Long pulse Induction Modulator Design 44.0" 65" 500kv 15uSec 12 ea V-Sec/turn per core V-Sec/turn total 8.4 kv 15uSec 2 series core 1 turn, 60 turn secondary 2 each 4.2kV, in series IBT drivers ~700 uhy, 1000 ohms t~0.7 usec rise time 32.0" Klystron amps x 2=290 MW IBTs 3000 Amps = 12 MW Drivers Requires 24 IBT switches 24 Drivers volt-sec 380,000 volts ores per Drivers in # cores Volts/ Pulse # of turns driver series Parallel in series turn Length secondary , , , , , , Slide 25

26 SOLID STAT INDUTION MOULATOR 3-PAK TST (using Prototype 4 Dog ) ORS AND SONDARY A 3 Turn Secondary A, 390 Meg watts, 100 kw Ave. SOLID STAT DRIVRS 162 IBT s Drivers (two per Primary) 2200 volts per IBT 1200 Amps per Driver Slide 26

27 NL Solid State Induction Modulator 8-Pack DFM Tests at NLTA 75MW PPM Klystrons 1:3 HV Xfmr IBT Induction Dual Stack 500 kv Drive Line Oil tank Slide 27

28 SOLID STAT INDUTION MOULATOR 8-PAK TST New Modulator ORS AND SONDARY A 3 Turn Secondary A, 1040 Meg watts for 3.2µs, 500 kw Ave. SOLID STAT DRIVRS 92 IBT s Drivers (two per Primary) 4000 volts per IBT 3080 Amps per Driver Slide 28

29 Tigger Distibution Board BN monitor panel Klystron coil supply Klystron heater supply 25A Klystron heater supply 25A Klystron heater supply 25A Klystron heater supply 25A Klystron coil supply Two Klystron coil supply Klystron coil supply Two Klystron coil supply Klystron coil supply Two Klystron coil supply Klystron coil supply Two Klystron coil supply 200 Volt Power Supply NL - The Next Linear ollider Project NL 8-PAK 8 MODULATOR 169" 73" 153" Overflow tank Tank 29" 16" 54" 48" 271" Secondary ontainment 9" high Power Panel 2' 11" Touch panel ontroles PL 28" 30" 19" 39" 97" Slide 29

30 NL SOLID STAT INDUTION MODULATOR PROBLMS Diode Problem Turn on voltage, Qrr and snap off. Needs R&D IBT shut off under short circuit 3-Turn Arc problem Slide 30

31 NL Solid State Induction Diode Test Slide 31

32 UP 3.3kV IBT Short ircuit Test UP 3.3 kv FZ800R33KF2 Slide 32

33 IBT Short ircuit Waveforms Normal load with new drive Dead short circuit Slide 33

34 upec IBT Failures Simulation Unbalanced mitters Slide 34

35 UP FZ800R33KF1 IBT Subsection with 2 IBTs and diode mitter path length different length for each IBT 3.3 kv device layout 4 Identical Sections drivers ach Section 4 IBT subsections plus 2 diodes ach IBT subsection 8 mitter connections Slide 35

IBT subsection 20 mitter connections UP 3.

36 Mitsubishi UP IBT 4.5 kv device layout 4 Identical Sections drivers ach Section 3 IBT subsections plus 3 diodes ach IBT subsection 20 mitter connections UP 3.3 kv device layout 4 Identical Sections drivers ach Section 4 IBT subsections plus 2 diodes ach IBT subsection 8 mitter connections UP 6.6 kv device layout 6 Identical Sections drivers ach Section 4 IBT subsections plus 2 diodes Slide 36

37 WSTOD IBT 5.2 kv device layout 3 IBT Identical drivers plus 1 diodes Slide 37

38 NL Solid State Induction 76 stack Arc test Before Snubbers After Snubbers Slide 38

39 NL SOLID STAT INDUTION MODULATOR PRORAM Full modulator core stacks of 76 cores with three turn secondary to drive water load to 500 kv. omplete Then full load current at 400 kv into 2 each 5045 klystrons. omplete Arc down testing to full Voltage. In progress. Then full load current at 400 kv into 4 each 5045 klystrons. Full reputation rate Pending Arc Tests Model program using 11 cores with standard pulse transformer to drive 5045 klystrons for life time testing. Operational, Under Test Drive 3 each 75XP klystrons at full Load with new stand. Stand under Design Fabricate a second modulator to operate 8 each 75XP klystron at 500 kv full load. Design, & Procurement Stage Slide 39

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