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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
POCPA 2012
Synchrotron Light Source in Cerdanyola del Vallès
(Barcelona, Spain)
POCPA 2012
ALBA accelerators
LINAC
100 Mev
BOOSTER
100 MeV – 3 GeV
STORAGE RING
3 GeV
POCPA 2012
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)
POCPA 2012
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
POCPA 2012
Magnet Power supplies at ALBA
Distribution of Power Supplies
in the Service Area
POCPA 2012
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
1000
-800
POCPA 2012
BOOSTER PCs
POCPA 2012
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
POCPA 2012
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
POCPA 2012
PS Logbook
POCPA 2012
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 ?
POCPA 2012