Transcript STAND TEST 3MeV

STAND TEST 3MeV
POWER CONVERTERS
AB-PO-PH ( Pulsed and High voltage converters)
WHERE ARE WE ?
AB-PO-PH mars 2007
Jean-Pierre ROYER
STAND TEST 3MeV
Power converters summary
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SOURCE H-
1 High Voltage Converter (40kV, 15 mA, dc)
1 High Voltage Converter (65kV, 4 mA, dc)
PLCs for converters 40 and 65 kV
1 Screen bias Converter 2 kV, 1A, dc
1 Grid bias Converter 500V, 500mA dc
1 Anode bias Converter (5 kV to 20 kV, 20A pulsed 2msec, I dc 20 mA)
LEBT (SOURCE H-)
• 2 pulsed solenoids converters (1200A, 800 microsec. , 2 Hz)
• 4 « LPSS » for steerer (70V, 10A bipolar, dc)
• 1 « LPS2 » for bending (50A, 35V, dc)
CHOPPER LINE
• 11 « maxidiscap » for quad (300A, flat top 800microsec, 2 Hz)
• 2 « LPSS » for steerer (35V, 20A, dc)
KLYSTRON MODULATEUR
• Prototype AB-PO (100kV, 20A, 800 microsec, 2Hz)
• Indian collaboration (100kV, 20A, 800 microsec, 2Hz)
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STAND TEST 3MeV
SOURCE H1 High Voltage Converter (40kV, 10 mA, dc)
1 High Voltage Converter (65kV, 2 mA, dc)
Technical Specification For DC High Voltage Power
Converters Rated - 40 kV, 10 mA- 65 kV, 2 mA
AB-PO EDMS No.: 799586
DO FUG, HEINZINGER, TECHNIX
 order: TECHNIX 22 kFS ( 40kV 15mA + 65 kV 4 mA)
delivery time ~ April 2007
PLC’s for converters 40 and 65 kV
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STAND TEST 3MeV
AB-PO-PH mars 2007
J.P. Royer AB-PO-PH
STAND TEST 3MeV
SOURCE H1 Screen bias Converter 2 kV, 1A, dc
 order FUG 6384 Euros (similar LEIR) may 2007
1 Grid bias Converter 500V, 200mA dc
 order FUG 3258 Euros (similar LEIR) may 2007
1 Anode bias Converter (5 kV to 20 kV, 20A pulsed 2msec, I dc 20 mA)
 order capacitor 46 microf. 26 kV: delivery 11-6-2007
 specification for “capacitors charging power converter” done
and sent for DO (demand offer)
FUG, Heinzinger, Technix: answer foreseen end of march,
then order and manufacturing, cabling the cabinet at CERN with
the different elements.
AB-PO-PH mars 2007
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STAND TEST 3MeV
LEBT (SOURCE H-)
2 pulsed solenoid converters (1200A, 800 microsec. , 2 Hz)
2 power converters modified (ex septa EPA-PS) :
-No matching transformer
-Third harmonic to be modified and adjusted
-Active filter must work for 800 microseconds
-Modifications and adjustments on regulation loops and electronics.
HIGH VOLTAGE
LEIR RING
I septum
L
SEPTUM
CHARGING CIRCUIT
R
MATCHING
TRANSFORMER
MAINS
ACTIVE FILTER
F.A. CMD
AB-PO-PH mars 2007
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STAND TEST 3MeV
CHOPPER LINE
11 « maxidiscap » for quad (300A, flat top 800microsec, 2 Hz)
Market survey and call for tender for
consolidation Linac 2 and Stand Test
3 MeV :
 Contract placed at OCEM.
Delivery of 11 units foreseen for end
May 2007
 12 kFS / power converter (power
and electronics)
AB-PO-PH mars 2007
J.P. Royer AB-PO-PH
STAND TEST 3MeV
CHOPPER LINE
11 « maxidiscap » for quad (300A, flat top 800microsec, 2 Hz)
AB-PO-PH mars 2007
J.P. Royer AB-PO-PH
STAND TEST 3MeV
Example of current and voltage waveforms
delivered by a maxidiscap on a LEIR magnet
voltage
The flat top
will be
increase until
800 microsec.
current
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
AB-PO-PH mars 2007
STAND TEST 3MeV
Maxidiscap E1 to E4

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STAND TEST 3MeV
LEBT (SOURCE H-)
4 « LPSS » for steerer (10A bipolar, dc)
1 « LPS2 » for bending (50A, 35V, dc)
CHOPPER LINE
2 « LPSS » for steerer (20A, dc)
 Power part: Delta power converters ordered and at CERN
Electronic crates and different electronics cards are in
progress for manufacturing.
AB-PO-PH mars 2007
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STAND TEST 3MeV
 LPSS LPS2 E5 to E6 
AB-PO-PH mars 2007
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STAND TEST 3MeV
KLYSTRON MODULATOR
1-Indian collaboration (100kV, 20A, 800 microsec, 2Hz)
2-Prototype AB-PO (100kV, 20A, 800 microsec, 2Hz)
It was foreseen to start the stand test 3MeV with the Indian
modulator but now, due to the delay, the PO prototype will be
installed for operation.
AB-PO-PH mars 2007
J.P. Royer AB-PO-PH
STAND TEST 3MeV
Anode power Filament power
converter, PS3 converter, PS4
PS1, PS3, PS4 - Commercial
PS2 - CERN made
120 kV High voltage cables
DC
DC
120 kV High voltage connectors
DIODE
RECTIFIER
PULSE
TRANSFORMER
(OIL TANK)
12 kV max
DRIVER
DRIVER
Vout
VPS1 0.1
mF
K
F
KLYSTRON
(OIL TANK)
A
Capacitor
discharge
system
1:10
A - Anode;
C - Collector;
K - Cathode;
F - Filament
A1
VPS2
Droop compensation power
converter or “bouncer”, PS2
AB-PO-PH mars 2007
K1
-120 kV
max
Capacitor bank charger
power converter, PS1
Main solid state
switches
Hign Frequency
ISOLATION
TRANSFORMER
C
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STAND TEST 3MeV
MODULATOR PROTOTYPE
-The most important parts have been ordered ( ex: capacitors,
high voltage pulse transformer, power converters for charging
capacitors and for filament heater, H.V. switch, etc…).
- Mechanical assembling has begun.
- Preliminary tests of components in lab are in progress.
Planning: first tests with klystron foreseen 15-9-2007
AB-PO-PH mars 2007
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STAND TEST 3MeV
Pulsed power converter for Klystron
AB-PO-PH mars 2007
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STAND TEST 3MeV
Power converters AB-PO
AB-PO-PH mars 2007
J.P. Royer AB-PO-PH
STAND TEST 3MeV
CONCLUSION for the different power converters:
-Team PO/PH responsibility for 27 power converters ( High
Voltage, pulsed or DC)
-The planning is well followed to respect the general planning
STAND TEST 3MeV.
-Effort will be necessary to integrate, to test and to
commissioning equipments
-Permanent effort (mechanical design, manufacturing) for the
high voltage pulsed power converter for klystron modulator.
-Sometimes conflicts with other business: work for shut down,
hardware test for start–up accelerators etc…
So we continue to go ahead ……..
AB-PO-PH mars 2007
J.P. Royer AB-PO-PH