Transcript POCPA2012

Commissioning & Status of ALBA
Power Supplies
Roberto Petrocelli
POCPA 2012
 ALBA overview and commissioning
 ALBA Power Converters

Booster Power Converters

Storage Ring Power Converters
 Tools for the day to day business
 Maintenance schedule
 Conclusions
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Synchrotron Light Source in Cerdanyola del Vallès
(Barcelona, Spain)
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ALBA accelerators
LINAC
100 Mev
BOOSTER
100 MeV – 3 GeV
STORAGE RING
3 GeV
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COMMISSIONING SCHEDULE
Booster commissioning in parallel to SR installation
SR commissioning (1st phase)
Installation Insertion Devices: SCW and IVUs
2010
March-June 2011
Summer 2011
SR commissioning with all IDs restarted
Sept 2011
Beam for beamlines commissioning
Oct 2011
First external users
May 2012
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BOOSTER COMMISSIONING
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SR COMMISSIONING
16 March: Beam Accumulated
1.5 mA stored
Acummulation
Current SR
Current Booster
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1st synchrotron light
outside the tunnel
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Once the MPS (to protect the machine) was operational…
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LIGHT from APPLE-II UNDULATOR
Beam Image at Fluorescent Screen on the FE
• Screen @ 9.35m from source (middle of straight section)
• Source  APPLEII undulator EU62
• Stored current I=0.8mA
Minimum gap (15.5mm):
Horizontal mode (K=5.2)
Circular mode (K=3.0)
Vertical mode (K=3.7)
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EMITTANCE
Emittance [nm·rad]
Coupling
Nominal
Measured
4.3
4.7
<1%
0.50 %
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ORBIT STABILITY
1week data
1shift (8h) data
SLOW ORBIT FEEDBACK
RUNNING 0.3 Hz
88 BPMs
88 CORH & 88 CORV
FAST ORBIT FEEDBACK
UNDER DEVELOPMENT
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2012 In Operation
 Beam-Line Users since May
 24 Hour operation
 2 injections.
 Expected 2000 hours for Beam Lines
and 1200 for Machine studies
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Magnet Power supplies at ALBA
Distribution of Power Supplies
in the Service Area
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Range of Magnet Power Supplies
SR-PC-BEND
BO-PC-BEND
SR-PC-SEXT
BO-PC-QUAD
800
LT-PC-CORR
600
(+/-2V-+/-2A)
BO-PC-CORR
400
(+/-12V-+/-6A)
200
0
-1000
-200
output current
-800
-600
-400
-400
-200
0
200
output voltage
-600
400
600
800
-800
1000
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BOOSTER PCs
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Major Incidences with main BO PS
15
date
PS
failure
action
1
06.11.09
Bend 2
Buck module failure
Sent to the factory for repair
2
15.12.09
Bend 2
Buck module failure
Sent to the factory for repair
3
23.03.10
Bend 2
Buck module failure
Sent to the factory for repair
4
21.06.10
Bend 2
Phase detector
Repaired at ALBA
5
25.07.10
Bend 2
Buck and 2Q module failure
Sent to the factory for repair
A capacitor on PWM that controls the switching frequency could drift and produce a double pulse.
It was replaced on all control boards
6
14.09.10
Bend 1
Auxiliary power supply
Replaced
7
15.11.10
QV02
PWM board failure
Repaired at ALBA
8
24.01.11
QS180
PWM board failure
Repaired at ALBA
9
24.01.11
Bend 1 & 2
Auxiliary power supplies
Replaced
10
27.04.11
Bend 1
2Q module failure
Repaired at ALBA by Bruker
11
29.04.11
Bend 2
2Q module failure
Repaired at ALBA by Bruker
3rd to 7th of May - Bruker slowed the start and stop procedures
12
16.05.11
QH02
Snubber resistor failure
Repaired at ALBA
13
23.05.11
Bend 1
Buck module failure
Sent to the factory for repair
14
20.04.12
Bend 1
2Q module failure failure
Replaced by spare module
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Major Incidences with main BO PS
Noise in Buck Module of BO_Bend_01
Buck input current
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SR PCs
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 7 incidences with SR Quad (200A x15V).
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TOOLS FOR DAY TO DAY BUSINESS
 PS Logbook
 PS database
 TRAINING OF OPERATORS
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PS Logbook
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2012 MAINTENANCE SCHEDULE
 5 WEEKS FOR MAINTENANCE ( distributed along the year)
 MAIN TASKS WE DO
 Connection Checks
 Rotate Spare Power Supplies
 Check calibration in Booster and SR Bendings.
 Perform annual test required by authorities ( CSN )
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2012 MAINTENANCE
Terminal not Crimped
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2012 MAINTENANCE
Fan out of order
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STATISTICS
Operation for users
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Next Steps
 Fast Orbit Feedback.
 Project of Power supplies for future upgrades.
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Conclusions
 It is not realistic to expect to find all the
problems during FAT, SAT and commissioning.
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Thank You !
Questions ?
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