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LCLS Intermediate Power Supplies Paul Bellomo, Antonio de Lira, Dave Mac Nair. LCLS Intermediate (LGPS but rack-mounted) Power Supplies MCOR Bulk Power Supplies Injector Bend, Solenoid, and QB Power Supplies Power Supply Controllers and Transductors. 2.5 kW to 22.5 kW - PowerPoint PPT Presentation
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August 29, 2005 1LCLS Injector Intermediate Power Supply Design Review
LCLS Intermediate Power SuppliesPaul Bellomo, Antonio de Lira, Dave Mac Nair
August 29, 2005 2LCLS Injector Intermediate Power Supply Design Review
LCLS Intermediate (LGPS but rack-mounted) Power Supplies
• MCOR Bulk Power Supplies
• Injector Bend, Solenoid, and QB Power Supplies
• Power Supply Controllers and Transductors
August 29, 2005 3LCLS Injector Intermediate Power Supply Design Review
MCOR Bulk Power Supply Determination from August 12, 2005 Magnet List
42 MCOR12s and 8 MCOR30s - 58 slots, use 4 - 16 slot crates
Average 18V, 11A from magnet list - 10kW total power required
For a rack of two crates of 16 mixed MCORscrates MCOR V * A2* * * * . kWrack crate MCOR
The total current required in a rack of 32 mixed MCOR scrates MCOR A2* * * * Arack crate MCOR
The current that must be delivere
18 1116 6 3
1116 352
d from the bulk power supply is VA* A V * A . kWV
Use a 60V, 165A 10kW bulk supply to power two crates of MCORs
18352 127 50 127 6 350
August 29, 2005 4LCLS Injector Intermediate Power Supply Design Review
Intermediate Power Supplies - Use, Requirement, Ratings, Cost, Delivery
Use Requirement Ratings Cost Delivery
S1S2Contingency
24V, 269A24V, 269A 3 - 33V, 300A, 10kW $24,000
15 weeks
BX01…BX02BXH1…BXH4 (2)Contingency
21V, 335A39V, 335A 4 - 25V, 375A, 10kW $32,000
BXGBXSMCOR Bulk (2)QBContingency
18V, 100A44V, 150A50V, 127A35V, 32A
6 – 60V, 165A, 10kW $48,000
Cost Grand Total $104,000
August 29, 2005 5LCLS Injector Intermediate Power Supply Design Review
List of Potential Power Supply Bidders
DanfysikC/o GMW Associates955 Industrial RoadSan Carlos, CA 94070650-802-8292sales@gmw.com
EMI-LambdaC/o Tritek Solutions, Suite 41800 Wyatt DriveSanta Clara, Ca. 94054Mr. Bret McDonald(408) 492-0400 X405bretmcdonald@triteksoutions.com
Dynapower Corporation1020 Hinesburg RoadP. O. Box 9210South Burlington, VT 05407802-652-1317Attn: Adam M. Knudsenaknudsen@dynapower.com
IE Power, Incorporated12 Falconer Drive, Unit 15Mississauga, OntarioCanada L5N 3L9905-813-8900Attn: Mr. Bob Holmesiepower@iepower.com
Elgar Electronics Corporation 9250 Brown Deer RoadSan Diego, CA 92121 Ph - 858-458-0235Ron Shimellrshimell@elgar.comwww.elgar.com
Matsushadac/o BiRa Systems Incorporated2410 Midtown Place, Suite AAlbuquerque, New Mexico 87107Phone: 505-881-8887Mr. Phillip BiswellEmail: phil@bira.com
August 29, 2005 6LCLS Injector Intermediate Power Supply Design Review
Seller's Control Loops
Purchaser BitBus Chassis
Programming Voltage
Desired Current Setpoint From LCLS Computer
Monitor Transductor
Feedback Transductor
To Magnet Load
Gate Drivers
ErrorAmp
ErrorAmp
Redundant Current Monitor
LCLS MPS removes ON command if magnet overheats
POWER SUPPLY
Control Power
August 29, 2005 7LCLS Injector Intermediate Power Supply Design Review
• 2.5 kW to 22.5 kW• 208 V / 480 V input• Series and parallelable• 27cm H*48cm W*61cm D
What is the desired LCLS color scheme for power supplies and racks, etc?
August 29, 2005 8LCLS Injector Intermediate Power Supply Design Review
J1 J2
+ -DC Output AC Input
DC Output Cables
TerminalCover
August 29, 2005 9LCLS Injector Intermediate Power Supply Design Review
General or Voltage Source Requirements
Accuracy /Track 0.1 % (1000 ppm) – 10 to 100% Rated VO
Ambient 40OF (4 OC) to 113 OF (45 OC) -
Bandwidth DC to – 3 dB 1,000Hz
Conducted EMC / Life FCC, Part 15, Class A 20 years 100,000 hrs -
Input/PF/EFF 208V-480 V, 3 / 0.9 / 0.85 -
Load 0.05H L 1.0H, 0.1 s L/R 1.0 s -
Regulation < 0.1% for 5% line/20% load Rated VO
Ripple Voltage < 0.2 % PP DC to 1 MHz Rated VO
Current Source Requirements
Bandwidth DC to – 3dB of IO 100Hz
Stability-ambient 2 ppm / O C – 10 to 100% Rated IO
August 29, 2005 10LCLS Injector Intermediate Power Supply Design Review
Inputs to Power Supply
On/Off Discrete, continuous +5V On, 0V Off
Programming Voltage Analog 0 to +5V , 0 to FSV or 0 to FSI
Reset Discrete, momentary +5V 100ms pulse
Outputs from Power Supply
On/Off Status Discrete, continuous Low On. High Off
PS Ready Discrete, continuous Low ready, high not ready
Output current Analog From transductors and PS Controller – not from PS
Output voltage Analog 0 to 10V, 0 to FSV
Ground current Analog 0 to 10V, 0 to 100mA
August 29, 2005 11LCLS Injector Intermediate Power Supply Design Review
Hazard Analysis
Bleeder resistors Across LF/HF filter capacitors
PPS interface External, upstream redundant AC contactors
Flammable liquids Trace amounts in electrolytic filters
Hazard signs Labels on PS for voltage and heat hazards
MPS interface In Ethernet chassis, open contact removes ON
Protective CB Lockable and covered line-load terminals
Soft-start Prevent input current surge
Totally enclosed AC plug, cover over DC terminals
Other components Non-flammable or fire retardant
Other Use listed components wherever possible and SLAC EEIP inspection prior to or after shipping
August 29, 2005 12LCLS Injector Intermediate Power Supply Design Review
8 (1 contingency) Ethernet power supply controllers - $2,000 * 8 = $16,000
August 29, 2005 13LCLS Injector Intermediate Power Supply Design Review
GMW Associates955 Industrial RoadSan Carlos, CA 94070650-802-8292 ian@gmw.com
7 systems * 2 /system *$660ea = $9,240
Mounting plates 2 plates * $250 each = $500
August 29, 2005 14LCLS Injector Intermediate Power Supply Design Review
Parameter 150/300&600A
Operating life > 20 years
Output 200mA / 400mA
Burden resistor 5.0 / 2.5
Stability < 0.3 ppm / O C
Offset error< 20 ppm @ 25 O C< 0.5 ppm / O C< 5.0 ppm / month
Absolute accuracy < 2 ppm
Linearity error < 4 ppm
SS bandwidth DC to 100 kHz
Slew rate > 5 mA / S
August 29, 2005 15LCLS Injector Intermediate Power Supply Design Review
August 29, 2005 16LCLS Injector Intermediate Power Supply Design Review
Cable and Conductor Sizing Per 2005 NEC
Basis – copper conductors, 90C insulation, max 45C ambient, no more than 3 conductors in a cable, cable tray fill per Article 392. Table 310-16 of NEC
Power Supply Basic Ampacity/Derating Conductor Size
33V, 300A 300A/0.87 = 345A 350kcmil 350A, use 500kcmil
25V, 375A 375A/0.87 = 431A 500kcmil 430A, use it
60V, 165A 165A/0.87 = 190A 2/0AWG 195A, use it
60V, 30A 30A/0.87 = 34A #10AWG 40A, use #8AWG
40V, 12A 12A/0.87 = 14A #18AWG 14A, use #12AWG
August 29, 2005 17LCLS Injector Intermediate Power Supply Design Review
END !!!
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