power supplies at bessy ii. 2 pocpa 2010 /k. burkmann-gehrlein, t.schneegans layout who is hzb? –...
TRANSCRIPT
Power Supplies at BESSY II
2POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
Layout
Who is HZB? – Bessy II Storage Ring
– The Metrology Light Source (MLS) of the PTB
Types of power supplies installed at BESSY II and MLS
Upgrade Programm for BESSY II– Topping up
– Fast orbit feedback
Future Project BERLin Pro Berlin Energy Recovery Linac Prototype
3POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
Who is HZB?Former
HMI
Former
BESSYSince 1st of January 2009
Helmholtz-Zentrum Berlin
Für Material und Energie
•BER II
•ISL
•Photovoltaic
•BESSY II
•MLS
•SC RF
4POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
Bessy II Storage Ring
4
BESSY II Storage Ring:
Circumference 240 m
Electron energy 1.7 GeV
e- beam current up to 300 mA
32 Bending Magnets
144 Quadrupole Magnets
112 Sextupole Magnets
144 Corrector
User operation since 1998
5POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
The Metrology Light Source (MLS) of the PTB
MLS Storage Ring:
Circumference 48 m
Electron energy 105-630 MeV
e- beam current 1 pA to 200 mA
8 Bending Magnets
24 Quadrupole Magnets
24 Sextupole Magnets
28 Corrector
User operation since 2008
6POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
Types of power supplies installed at BESSY II and MLS
< 100W
130 devicesmade by:
BESSY
< 100W
130 devicesmade by:
BESSY
100 W–1 kW
240 devicesmade by:
BESSY Rohrer (GER) WME (GER)
100 W–1 kW
240 devicesmade by:
BESSY Rohrer (GER) WME (GER)
1 kW–10 kW
50 devicesmade by:
Delta (NL) Danfysik (DK)
1 kW–10 kW
50 devicesmade by:
Delta (NL) Danfysik (DK)
10 kW–100 kW
60 devicesmade by:
Danfysik (DK) Jäger (GER)
10 kW–100 kW
60 devicesmade by:
Danfysik (DK) Jäger (GER)
> 100 kW
5 devicesmade by:
Danfysik (DK) Jäger (GER)
> 100 kW
5 devicesmade by:
Danfysik (DK) Jäger (GER)
In The year 2004: 485 power supplies and 1 beamloss per month: MTBF = 40 years
7POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
Upgrade Programm for BESSY II: Topping Up
Today: 3 injections a day Future (2013): Topping Up
In the Top-Up operation lost electrons are replaced continuously after minutes rather than every eight hours in order to keep a nearly constant beam current.
– A new 50 MeV Linac for Top Up and flexible fill pattern (Operation starts erly 2011)– Sextupole PS for 10 Hz dynamic cromaticity correction in the booster synchrotron (Operation starts end 2010)
8POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
Upgrade Programm for BESSY II: Fast orbit feedback
Today:
0.2 Hz transversal global orbit feedback
Overall there are 122 corrector magnets installed as auxilliary windings in the 112 sextupole magnets. 48 for horizontal plane
74 for vertical plane
9POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
Old Power supplies for the slow (0.2 Hz) transversal orbit feedback
Power Supplies ROHREr
AD
A 1
6 IO
8 In
terf
ace
bo
ard
Analog Setpoint Resolution up to 19 Bit
Two analog readbacks 16 bit resolution.One Slow High precission ADC One 100 kHz ADC
Digital Status
Digital controls
Trigger Setpoint
+
Shunt resistor
Linear Power Stage
+
Stability: ±100 ppm ripple +drift3db bandwidth: <10 HzCAN-Bus
Em
bedd
ed C
ontr
olle
r
Ma
gn
et
Mains
Terminal
Ext Interlock Terminal
Old Corrector PS
Sh
un
t resisto
r1 Hz 10 Hz 100 Hz 1000 Hz
0,01
0,1
1
10
hor. Steerer vert. Steerer
Am
plitu
de (D
C-n
orm
iert)
Frequenz
-100 °
0 °
100 °
Pha
se
10POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
Eliminate perturbation sources wherever possible
No Noise is better than Anti-Noise:
R.Müller
BPM Measurement
Caused by switching of muliplexers on the Interfaceboard
11POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
Upgrade Programm for BESSY II: Fast orbit feedback
Future (2012): Fast Orbit Feedback 200 Hz
The concentration of almost 50 experimental stations in the experimental hall increases environmental noise, thereby adversely affecting the resolution and stability of measurement setups.
Phase I •replacement of all corrector power supplies aims at higher correction speed (20Hz – 60Hz)
Phase II •replace today’s multiplexed analog beam position monitors (BPMs) by parallel processing fast digital units to increase correction precision:
12POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
New power supplies for the fast (200 Hz) transversal orbit feedback
Power Supplies WME PA4008\11
AD
A 1
6 IO
8 In
terf
ace
bo
ard
Analog Setpoint Resolution up to 19 Bit
Two analog readbacks 16 bit resolution.One Slow High precission ADC One 100 kHz ADC
Digital Status
Digital controls
Trigger Setpoint
+
DCCT2-Monitor
DCCT1-Regulation
Linear Power Stage
+
Second Analog Setpoint +/-10V for +/-Imax
Stability: ±100 ppm ripple +drift3db bandwidth: 1 kHzCAN-Bus
Em
bedd
ed C
ontr
olle
r
Analog
Modulation Input
Ma
gn
et
Mains
Terminal
Ext Interlock Terminal
DC
CT
1-R
egu
lation
New Corrector PS
1 Hz 10 Hz 100 Hz 1000 Hz0,01
0,1
1
10
hor. Steerer vert. Steerer
Am
plitu
de (D
C-n
orm
iert)
Frequenz
-100 °
0 °
100 °
Pha
se
13POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
New power supplies for the fast (200 Hz) transversal orbit feedback
1 Hz 10 Hz 100 Hz 1000 Hz0,01
0,1
1
10
Am
plitu
de in
mT/
A
Frequenz
-100 °
0 °
100 °
Pha
seTransfer function for the complete system:
power supply →magnet (auxilliary coils in BESSY II sextupoles )
→vacuum chamber→magnetic field at the place of the e-beam
Conclusion:Up to several 100 Hz the correlation is rather linear
14POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
100mHz 1Hz 10Hz 100Hz 1kHz1mA
10mA
100mA
1A
10A
Modulationsfrequenz
VS3 HS4 HS1
Spi
tzen
stro
m New power supplies for the fast (200 Hz) transversal orbit feedback
Output current an voltage:
Due to the limited output voltage of 40 V and the inductances of the different loads the output current of 8 A at DC-operation will be limited for AC operation as shown
below
15POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
New power supplies for the fast (200 Hz) transversal orbit feedback
2009 Installation und Inbetriebnahme der schnellen DatenübertragungenAufbereitungen der schnellen Strahllagemessung
2010 Entwicklung des FOFB-Systems zur Einsatzreife, Einsatz des Pilotsystems im BetriebAusstehend: Bestellung der ersten Charge „schnelle Powersupplies“
2011 Einbau der Powersupplies, sobald geliefert und Shutdownzeit vorhandenInbetriebnahme und Ausbau der entsprechenden FOFB-StufeBestellung und Lieferung der fehlenden „schnelle Powersupplies“, Inbetriebnahme…
2012 Charakterisierung und Tuning
2013
Time schedule
R.Müller
16POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
Future Project: BERLinPro Berlin Energy Recovery Linac Prototype
What can be the succsessor for our 3rd generation lightsource BESSY II?
ERLs hold the promise of becoming the future backbone of the SR sources, satisfying the needs of the current user community.
BERLinPro is designed to develop and to demonstrate the CW LINAC technology and expertise required to drive next-generation light sources that are based on ERL principle
03/2011 first beam of srf photo electron source conceptual design report ready2016 recirculation, energy recovery →
start of accelerator physics experiments
17POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
Thank you very much
for your attention.
Power Supplies at BESSY II
18POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
New power supplies for the fast (200 Hz) transversal orbit feedback
19POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
New power supplies for the fast (200 Hz) transversal orbit feedback
N. Hubert-SOLEIL 2009 DIPAC
Power Supplies WME PA4008\11
AD
A 1
6 IO
8 In
terf
ace
bo
ard
Analog Setpoint Resolution up to 19 Bit
Two analog readbacks 16 bit resolution.One Slow High precission ADC One 100 kHz ADC
Digital Status
Digital controls
Trigger Setpoint
+
DCCT2-Monitor
DCCT1-Regulation
Linear Power Stage
+
INom= ± 8 AUNom= ± 40 V
CAN-Bus
Em
bedd
ed C
ontr
olle
r
Erste Stufe der Realisierung des FOFB
Ansteuerung nur über den vorhanden CAN-Bus Anschluss.
Zu erwarten sind Bandbreiten > 10 Hz.
Die obere Grenze ist durch die Ansteuerung gegeben und erst im realen Test zu bestimmen
Die zur Zeit global eingebauten alten Netzgeräte sind nur unterhalb 10 Hz, und das auch erst nach Umbau aller Geräte, einsetzbar
INom= ± 8 AUNom= ± 40 V
DC
CT
2-M
on
itor
Power Supplies WME PA4008\11
AD
A 1
6 IO
8 In
terf
ace
bo
ard
Analog Setpoint Resolution up to 19 Bit
Two analog readbacks 16 bit resolution.One Slow High precission ADC One 100 kHz ADC
Digital Status
Digital controls
Trigger Setpoint
+
DCCT2-Monitor
DCCT1-Regulation
Linear Power Stage
+
Second Analog Setpoint +/-10V for +/-Imax
CAN-Bus
Em
bedd
ed C
ontr
olle
r
Analog
Modulation InputD
CC
T1-
Reg
ulatio
n
Zweite Stufe der Realisierung des FOFB
Ansteuerung (z.B. auch für ein langsames Feedback <1 Hz) über den vorhanden CAN-Bus Anschluss.
Zusätzlich Sollwertvorgabe über den Modulationseingang der Netzgeräte aus dem unabhängig aufgebauten schnellen Feedbacksystem stammend.
INom= ± 8 AUNom= ± 40 V
Mögliche weitere Stufe drei der Realisierung des FOFB
Ansteuerung über den vorhanden CAN-Bus Anschluss. Nur noch Remote Control und eventuell konstante Setzwerte werden hierüber zugestellt.
Die Werte aus dem unabhängig aufgebauten schnellen Feedbacksystem werden digital über einen schnellen neuen Netzwerkanschluss zugestellt.
CAN-Bus
Für Remote Control
Schneller Netzwerkanschluss für das komplette Feedback
Power Supplies WME PA4008\11
Analog Setpoint including Modulation
Analog readbacks Slow and Fast
Digital Status
Digital controls
Trigger Setpoint
DCCT2-Monitor
DCCT1-Regulation
Linear Power Stage
+
Neue Interfacekarte.
Bisher noch nicht geplant.
Eventuell nur neuen Embedded Controler auf alter ADA 16
Power Supplies WME PA4008\11
Analog Setpoint including Modulation
Analog readbacks Slow and Fast
Digital Status
Digital controls
Trigger Setpoint
DCCT2-Monitor
DCCT1-Regulation
Linear Power Stage
+ INom= ± 8 AUNom= ± 40 V
Schneller Netzwerkanschluss für das komplette Feedback
Mögliche weitere Stufe vier der Realisierung des FOFB
Remote Control über einen schnellen neuen Netzwerkanschluss.
Auch die Werte aus dem schnellen Feedbacksystem werden digital über einen schnellen neuen Netzwerkanschluss zugestellt.
Neue Interfacekarte.
Bisher noch nicht geplant.
24POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
Dietmar Simmering
25POCPA 2010 /K. Burkmann-Gehrlein, T.Schneegans
Dietmar Simmering