1. Power and control electronics for the new fast wire scanners
BI day 2017
P. Andersson
BI Day 2017 P.Andersson

2. Introduction Content of this presentation: Beam Wire Scanner
New Scanner
First prototype, Installation, Commission
New Electronic
Schedule
BI Day 2017 P.Andersson

3. 1) Beam Wire Scanner (BWS) working principle
Courtesy of J.Emery
Secondary Particle (Interaction Wire – Beam)
Vacuum pipe
Particle Beam
Forks
Movement
Scintillator
Optical filters
Control & Acquisition
PM current
Fork position
Photomultiplier
Preamplifier
Example of one BWS installed in the PS accelerator
Beam Transversal Profile
BI Day 2017 P.Andersson

4. Operational Scanners overview
Machine
Scanner type
installed
Secondary particles detector (Scintillator Filters Photomultiplier)
Fast acquisition (bunch profiling)
Scanner per tank
Maximum speed (m/s)
Wire size
Aperture (mm)
2012 run, Number of cycles per scanner
PSB
Rotating fast 8
1 for 2 scanners x 2 20
12x7mm (C)
112
3k – 11k PS 5
2 per scanner 1
15-20
 112
2k – 11k
SPS
Rotating (short and Long) 6
Yes
30mm (C)
 170
4.5k - 9.5k
Linear 4
yes
 56
0.2k
LHC
1 for 4 scanners
 60 4k
Courtesy of J.Emery
LHC scanners beam 1
SPS
PSB scanners
SPS scanners 416
BI Day 2017 P.Andersson

5. Architecture of the BWS (Based on VME since 2009)
UNDERGROUND (radioactive)
Up to 250m !
CCC & databases
SURFACE INSTALLATION
Multiplexers
Power
Courtesy of J.Emery
CPU
R IO3
T IMING
BOBR HV
CTRL
DAB+
I BMS
Motion control board
Power amplifier behind the VME
Position
SPS
Step motor control
MTG master
BST master
BI Day 2017 P.Andersson

6. Issues last 10 years BWS Breaking wires due to:
- Beam interaction.
- Induced RF power.
Instabilities of position and profile measurements due to:
- Inaccuracy of position measurements.
- Flexibility, vibrations in mechanics and wire (in some cases).
Aging bellows in PS (broke after ~13000 scans).
Outgassing bellows in LHC during bake-out.
Timing jitter in PS.
Magnet quenching in LHC (simulations GEANT4).
Fixation wires in fork.
SPS
BI Day 2017 P.Andersson

7. 2) The aim of the project is to change 3 different types of scanner by only one that will have better performance in terms of accuracy, reliability, speed and acquisition dynamic range.
SPS
BI Day 2017 P.Andersson

8. The motor is changed from a DC motor to a permanent magnet brushless synchronous motor. Which will demand new electronics.
Courtesy of D. Gudkov
New Mechnics,
Encoder and
Fork on the
Motor axel!
Less mechanically
Play!
BI Day 2017 P.Andersson

9. New Architecture BWS Up to 250m ! UNDERGROUND (radioactive)
SURFACE INSTALLATIONS
VME Software and firmware
Stand alone Unit
Wire Interface
Courtesy of J.Emery
Optical interface
CPU
Timing
Digital board
Acquisition ctrl
Position ctrl
Resolver interface
Power amplifier
Filter
Settings databases
Photomultiplier
Storage databases
Accelerator control room (CCC)
BI Day 2017 P.Andersson
BWS discussion on the FPGA platform - J.Emery

10. 3) SPS LSS5 wire scanner tunnel 2015
4Q15
1Q16
2Q16
3Q16
4Q16
1Q17
2Q17
First beam test performed at the end of and still in operation
It uses the control platform based on FPGA
Wire scanner prototype
Particles shower measured by diamond detectors
Courtesy of J. Sirvent
BI Day 2017 P.Andersson

11. Control and power electronics SPS Installation
4Q15
1Q16
2Q16
3Q16
4Q16
1Q17
2Q17
Control Electronic Power Unit Filter
- 1 pcs. Altera development kit ARRIA V SoC - 1pcs. Motor Inverter. Arcel Filter,Schaffner
- 1 pcs. Mezzanie FMC board, CERN J.Emery - 1Pcs. Mesurement board,CERN L.Timeo
- 2pcs. DC bus Power Supply.DeltaElektronika
3U 6U *100*165mm = 34.5Kg
External
Filter
BI Day 2017 P.Andersson

12. Analog-digital board Mezzanine
4Q15
1Q16
2Q16
3Q16
4Q16
1Q17
2Q17
4) New Electronics
Control Electronic Power Unit
- 1 pcs. Altera development kit ARRIA V SoC --> 1 pcs.VFC, CERN BI(group) - 1pcs. Motor Inverter. Arcel > 1pcs. Inverter, CERN P.Andersson
- 1 pcs. Mezzanine FMC board, CERN J.Emery - 1Pcs. Mesurement board,CERN L.Timeo
- 2pcs. DC bus Power Supply.DeltaElektronika > 1 pcs.Cap.charger, CERN P.Andersson
Sinus Filter
Capacitor
6U, ≈ 17Kg
VFC
Inverter board
Analog-digital board Mezzanine
Capacitor Charger
BI Day 2017 P.Andersson

13. Prototype Inverter IGBT Vce = 600V, IC = 60A(200A peak)
4Q15
1Q16
2Q16
3Q16
4Q16
1Q17
2Q17
Prototype Inverter
IGBT
Vce = 600V,
IC = 60A(200A peak)
8-30 kHz Switching Frequency
BI Day 2017 P.Andersson

14. 4Q15
1Q16
2Q16
3Q16
4Q16
1Q17
2Q17
Thermal Simulation in Ltspice of one of the IGBT in the inverter protype.
PWM = 16kHz, Duty cycle 50%. 100ms PWM seq. per sec.
Filter
250 m Cable
Motor
300Vdc
BI Day 2017 P.Andersson

15. Simulation LTspice Junction temperature We have a in and out Seq.
Ambient Temperature
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16. 4Q15
1Q16
2Q16
3Q16
4Q16
1Q17
2Q17
Temperature measure points on prototype board with same motor used in SPS
Orange dot =
Temperature
Sensor placement
BI Day 2017 P.Andersson

17. Speed Motor 200Rad/s, 1 Scan/s
4Q15
1Q16
2Q16
3Q16
4Q16
1Q17
2Q17
Speed Motor 200Rad/s, 1 Scan/s
BI Day 2017 P.Andersson

18. Speed Motor 200Rad/s, 1 Scan/s No active cooling
4Q15
1Q16
2Q16
3Q16
4Q16
1Q17
2Q17
Speed Motor 200Rad/s, 1 Scan/s No active cooling
BI Day 2017 P.Andersson

19. Dspace Measurement 4Q15 1Q16 2Q16 3Q16 4Q16 1Q17 2Q17
BI Day 2017 P.Andersson

20. 4Q15
1Q16
2Q16
3Q16
4Q16
1Q17
2Q17
Inverter
Key Features
Upgraded for 600V DC Bus, Safety CPLD, Current and Voltage measurement.
VCES = 600V, IC = 60A(200A peak). Tc = 100 °C, Tj = 175 °c
Current measurement 100A rms
Voltage measurement 500 Vdc
CPLD with
SPI Interface
Start up Sequens for DC/DC, to prevent high inrush current.
Preventions of turning High and Low ”leg” on at the same time, No short circuit.
Control of capacitor charger.
Sending back status to mezzanie board.
BI Day 2017 P.Andersson

21. Capacitor Charger Key Features Charge any size of capacitor Up 500V
4Q15
1Q16
2Q16
3Q16
4Q16
1Q17
2Q17
Capacitor Charger
Key Features
Charge any size of capacitor
Up 500V
AC/DC, for 28V, 18A
BI Day 2017 P.Andersson

22. VFC + MEZZANINE VFC in standalone mode.
4Q15
1Q16
2Q16
3Q16
4Q16
1Q17
2Q17
VFC + MEZZANINE
VFC in standalone mode.
VFC and mezzanine, using FMC extender.
None standard FMC mezzanine shape due to the numerous components.
BI Day 2017 P.Andersson
3Q17

23. Dspace + inverter with motor Firmware Motion Control + Safety CPLD
5) Schedule
Test Inverter
Test Mezzanine Board
Test Cap.Charger
Pre Mech. assembly
Assembly
Delivery
Preparation of series prod.
2017
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2018
Control and power electronic test
Dspace + inverter with motor
Long run test
Firmware Motion Control + Safety CPLD
BI Day 2017 P.Andersson

24. Thank You
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25. Additional slides
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26. Motion design
Courtesy of J.Emery
HOME
Jerk α
IN movement
Acceleration
OUT movement IN
0 crossing
98mm
Speed
Position
Nominal beam-wire interaction position ≥ 20 [m/s]
Movement limited to π [rad] => Nominal speed reached in π/3
IN and OUT movement ≈ 100ms
BI Day 2017 P.Andersson

27. Installation SPS 2015 VME Filter Control Electronic Power Unit
BI Day 2017 P.Andersson
4Q15
1Q16
2Q16
3Q16
4Q16
1Q17
2Q17

28. One Output
BI Day 2017 P.Andersson

29. BWS discussion on the FPGA platform - J.Emery - 19.05.2016
Filter, simulation
BI Day 2017 P.Andersson
BWS discussion on the FPGA platform - J.Emery

30. Intelligent drive architecture
Analog-digital board
Low voltages + DC-BUS Power
Measure board
Will go to inverter
Capacitor
Sinus Filter
Board inverter
BWS control electronics specification :
BI Day 2017 P.Andersson
BWS discussion on the FPGA platform - J.Emery

31. Intelligent drive architecture
Analog-digital board
Low voltages + DC-BUS Power
Measure board
Will go to inverter
Capacitor
Sinus Filter
Board inverter
BWS control electronics specification :
BI Day 2017 P.Andersson
BWS discussion on the FPGA platform - J.Emery

32. BWS discussion on the FPGA platform - J.Emery - 19.05.2016

33. Arria SoC kits BI Day 2017 P.Andersson
BI Day 2017 P.Andersson