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Brief introduction to Imtech Power Electronics
“High Gradient Day”, 31 January 2013
28 February 20112Imtech Nederland Shared Success
European technology supplier: core competences: electrical, ICT, mechanical
Maritime worldwide partner
Euronext AMX stock exchange
5.1 billion euro profitable turnover (2011)
Over 29.000 employees
Over 345 establishments in Europe
Global network of 70 maritime branches
Imtech N.V.
28 February 20113Imtech Nederland Shared Success
Organisation Imtech Power Electronics
Imtech Nederland
Imtech Industry International
B.V.
Power Electronics
Oil & Gas
Energy
Imtech Power Electronics is derived from the well-known Holec group
28 February 20114Imtech Nederland Shared Success
■ Examples of systems designed and built in house:
– DC rectifiers for fusion experiments and
high field magnets
– Power supplies for particle accelerator magnets
– HV power supplies and pulse modulators
■ Some of our customers:
Capabilities and experiences
5
6
A1
Q1
L1
C1
C2
C3
C4
690V 50Hz
K1F1
T1
Av
HVPS M1
HVPS M2
HVPS M3
HVPS M4
HVPS M5
C m
+13 kV
D m
D LsR s
Ls
D 1
THY 1C b
L b
R dIGBT 1R cr
THY 2
IGCT
D us
R usVAR
C us
L out
S 1
R eV klystron
v
v
A
DCCT
U load
Imtech Vonk DESY
U HVPS
I loadU Bouncer
AI HVPS
V
U load
U Klystron
130 kV/150 A
Experience: Bouncer Modulator
380 kW Constant PowerVariation: 2 kVA
21,6 MW pulse1,57 ms @ 10Hz
28 February 20116Imtech Nederland Shared Success
Some test results of the prototype
- Pulse length: 1,7 ms- Mean value 2,845 V- (85,35 kV on 5 MW Klystron)- Flat top: 11,4 mV => +/- 0.20 %
Test 1 Test 2
- Pulse length: 500 us- Mean value 2,954 V- (88,62 kV on 5 MW Klystron)- Flattop: 4,6 mV => +/- 0.08 %
CLIC requirement:- Pulse length: 140 us- Flat top: 10 ppm (+/- 0,0001%)?
28 February 20117Imtech Nederland Shared Success
- Pulse length: 1,7 ms @10 Hz- 400 V mains voltage instability : > 10V = 2.5 %- (Mean value 105,784 kV on 5 MW Klystron)- Klystron voltage instability: 86 Vt (+/- 43 V)- Flattop worst case deviation (including mains voltage variation) = +/- 0.04 %
Pulse-to-pulse stability test of the prototype (12h)
28 February 20118Imtech Nederland Shared Success
Challenges for the CLIC project
■The pulse transformer introduces unwanted properties
‒Rise and fall times are in the order of 50 us at least (CLIC requirement: 5 us?)
‒Non linear effects on flat top
‒(Correction of non linear effects by “active bouncer”?)
CLIC requirement:- Pulse length: 140 us- Flat top: 10 ppm (0,0001%)?
28 February 20119Imtech Nederland Shared Success
Ambitions (for the CLIC project ?)
■Study of a High Voltage Hard Switch Modulator (without pulse transformer)
‒Flexible pulse length (no transformer limitations)
‒Flexible pulse frequency (no transformer reset)
‒Flat top (no transformer non-linear effects)
‒Higher efficiency (no transformer rise and fall times)
Disadvantages:
-High input voltage
-Oil insulation of power electronics required
10
Interaction with CERN in the development phase ?
■Imtech Power Electronics is an engineering and contracting company
■We are custom developing
■Nevertheless the following may help
‒Newsletter by which CERN presents and clarifies the CLIC modulator requirements
‒Set up an internet-forum where registered members can discuss with CERN about the CLIC
modulator requirements
28 February 201111Imtech Nederland Shared Success
■A reliable and knowledgeable partner in Power Electronics
‒In depth knowledge of electrical systems and power electronics
‒Production and test facilities for small and medium size batches
‒A quality conscious organisation working to high and if necessary special standards
Shared Success with Imtech
Imtech Power ElectronicsTechnology is ours, Results are yours
Shared Success!
■Strong focus on our customers
■Added value for mutual benefit