SPEAR 3 Overviews AC Distribution System - Marjorie ...

SPEAR 3 August, 2003 Paul Bellomo and Marjorie Widmeyer 1

SPEAR 3 Overviews

AC Distribution System - Marjorie Widmeyer

Magnet Power Supplies - Paul Bellomo

August 2003


AC Distribution System

• Purpose

• Provide required power to power supplies and support equipment

• Allow power supplies to be easily isolated for shutdown and maintenance

• Separate control and utility supplies

• Scope

• AC Distribution – one line overview

• Lock out/Tag out

• PPS



SPEAR 3 AC Distribution and layout drawings: http://www.slac.stanford.edu/grp/md/dcon/draw/draw.html

The drawing number blocks are:

• ID-439-720-20 Substation 507 HV Distribution Single Line Diagram

• 444-500-00 to 444-500-99 B118 Layouts

• 444-690-00 to 444-690-99 B118 AC Distribution

http://www.slac.stanford.edu/grp/md/dcon/draw/draw.html



B117 Control Room

Substation 507

OperationsLab

Space

ED & MPowerSupply

Test Area

DP-03

MCC-01

MCC-03

MCC-02B

Fut

Fut

Pulsers

FutMPSQD Vacuum

N

Dipole PowerSupply

QMSBipolar

SWBD-02 SWBD-01

TSPBTS

MCC-04

11 to 18

QF

QF QD QFC

QFC

I &C

MCC-02A

01 to 06

36 to 31 30 to 27 26 to 19

PS6 to PS3 46 to 3748 & 47 PS7 TRN1

SD SF QDX

QFZ

PS1, PS2, 07 to 10

DP-1B 1ADP-2

I & C

4B-155 4B-156



15612 KV AC Supply

Substation507

480 VAC Supply4B-156

155

4B-155

SWBD - 01 SWBD - 02

MC

C 0

2A D

ipol

eP

ower

Sup

ply

MC

C 0

1C

orre

ctor

Sup

plie

s,Sk

ewqu

ads,

QM

S,D

ipol

e T

rim

, Ins

ertio

nD

evic

e T

rim

s

MC

C 0

4SD

, SF

, SD

/FM

Str

ings

QD

X to

QF

ZB

TS

TSP

and

Pul

sers

PN

L 0

2 U

tility

PN

L 0

1 C

ontr

ol

MC

C 0

3Q

F:

B11

8-01

to 0

6Q

D: B

118-

31 to

36

QF

, QD

, QF

C S

trin

gs

MC

C 0

2B D

ipol

eP

ower

Sup

ply

1 32 42 3 1



Some Details

• The total power draw of all the SPEAR 3 magnet power supplies isabout 2,300 kVA. This is about 33% less than SPEAR2.

• No electromagnetic wigglers

• Magnets have copper windings instead of aluminum

• Power supplies are more efficient

• Dipole power supply at about 1,100kVA takes almost ½ of this power

• The load is roughly balanced on 4B-155 and 4B-156 and on Switchboards 4PB118-SWBD-01 and 4PB118-SWBD-02


AC Distribution System SWBD-01

SWBD - 01

MCC 02A MCC 02B MCC 01

MS1-BD-PSDipole BulkB118-PS7

Spa

ce

Cus

tom

erTe

st C

ell

B11

8-38

1 2 3

12111098765431 2

B11

8-44

B11

8-43

B11

8-42

B11

8-41

B11

8-40

B11

8-39

Horizontal and Vertical Correctors

118-TR1-PSDipole

Transformer



UTILITY POWER

PNL-01B

MCC 03

1 2 3 3

**

Cus

tom

erTe

st C

ell

12111098765431 2 13 14 15

B11

8-01

QF

B11

8-02

QF

B11

8-05

QF

B11

8-04

QF

B11

8-03

QF

B11

8-31

QD

B11

8-06

QF

B11

8-32

QD

B11

8-36

QD

B11

8-35

QD

B11

8-34

QD

B11

8-33

QD

B11

8-P

S6

MS

1-Q

D-P

S

B11

8-P

S5

MS

1-Q

F-P

S

B11

8-P

S4

MS

2-Q

FC-P

S

B11

8-P

S3

MS

1-Q

FC-P

S

16 17 18

CONTROL POWER

T1480-208/120V

T2480-208/120V

PNL-02

MCC-04(Next Page)

SWBD 02

PNL-01ACONTROL/VACUUM



MCC 04

DP-03

1 2 3

**

Cus

tom

erTe

st C

ell

4

B118

-PS

1M

S1-

SD

-PS

31 2

B118

-PS

2M

S1-

SF-

PS

B118

-07

SD

M/S

FM

B118

-10

QFY

/QFZ

B11

8-11

B7H

B11

8-12

B8V

/B9V

B11

8-13

Q8/

Q9

B11

8-14

TSP

B11

8-08

QD

X/Q

DY

B118

-09

QD

ZQFX

Disconnect

T2 T

O P

NL-

02U

TILI

TYP

OW

ER

T1 T

O P

NL-

01C

ON

TRO

LPO

WE

R

15963

1110987654

B11

8-18

K1,

K2,

K3

T3480-208/120V

MCC-03(previous

page)

SWBD 02

SWBD-02



SWBD - 01 SWBD - 02

PNL

02 U

tility

PNL

01 C

ontr

ol

1 32 42 3 1

**

MCC 01

** ** ** **

MCC 04MCC 03MCC 02BMCC 02A**Contactors

Lock Out/Tag Out

• Lock off all B118 power supplies via 5 MCC main breakers

• Lock off an entire rack of power supplies at the MCCs

• Lock off individual power supplies



• PPS Controls Contactor on each MCC• Contactor Control

• Local on off switch• PPS Chain A & B• Emergency Off – Dipole Only

• Door covering contactors is mechanically interlocked with the door for the main breaker of the MCC to prevent opening the contactordoor when the Main Breaker is closed

S1 ONS2 OFF

EMERGENCY OFFDIPOLE ONLY

PPS CHAIN A

PPS CHAIN B

MCCCONTACTOR M1

MCCCONTACTOR M2

**

M1

M2


AC Distribution System MCC – IQ Analyzer

• IQ Analyzer Displays:

• Current

• Voltage

• Power system and phase (A, B, C), Real Power (Watts), Reactive Power (vars), Apparent Power (VA),

• Power Factor

• Frequency

• % Total Harmonic Distortion

• Information available on line in the future

IQ Analyzer



120V Quad Receptacles - front and rear - poweredfrom utility panelboard

120V 12 receptaclecontrol power strip

(blue)

120V 12 receptacleutility power strip

(beige)

Power Supply Double Bay Rack - looking into rearwith rear doors open

Utility Power

• Beige power strip

• Supplies power to all fans

• Quad-receptacle in each power supply rack

Control Power

• Blue power strip

Lighting

• Power from PPA Circuit 2, 4, 6


Magnet Power Supply Overview


Topics

1. Purpose and Scope2. B118 Layout

3. Some Generalities

4. Electrical Interlocks

5. Unipolar Power suppliesa. Dipoleb. Large (free-standing)c. Intermediate (rack-mounted)d. Unipolar Control

6. Bipolar Power Suppliesa. Control for Bipolars

7. Pulsed Power Suppliesa. Control for Pulsed


1. Purpose and Scope

Purpose

Power Supplies convert raw, unregulated AC to precise, controlled and regulated DC for continuous current and pulsed current magnets

Scope

New SPEAR 3 magnet power supplies in B118


2. B118 Layout

B117 Control Room

Substation 507

OperationsLab

Space

ED & MPowerSupply

Test Area

DP-03

MCC-01

MCC-03

MCC-02B

Fut

Fut

Pulsers

FutMPSQD Vacuum

N

Dipole PowerSupply

QMSBipolar

SWBD-02 SWBD-01

TSPBTS

MCC-04

11 to 18

QF

QF QD QFC

QFC

I &C

MCC-02A

01 to 06

36 to 31 30 to 27 26 to 19

PS6 to PS3 46 to 3748 & 47 PS7 TRN1

SD SF QDX

QFZ

PS1, PS2, 07 to 10

1A1B2

I & C



Reference Drawings

• SPEAR 3 power supply drawings are available as TIFFs fromhttp://www.slac.stanford.edu/grp/md/dcon/draw/draw.html

• The drawing number blocks are:444-500-00 to 444-500-99 B118 Layouts S3-0781

444-600-00 to 444-639-99 Unipolar S3-0781

444-640-00 to 444-654-99 Bipolar S3-0782

444-655-00 to 444-659-99 Pulsed S3-0783

444-670-00 to 444-670-99 BitBus Control S3-0784

444-685-00 to 444-689-00 Racks/Accessories S3-0785

http://www.slac.stanford.edu/grp/md/dcon/draw/draw.html



• Little local control. Operation is computer-based

• Air-cooled – Exceptions Dipole Bulk Power Supply, Dipole Chopper Modules, SD, SF with valves / instrumentation above each power supply

• All switchmode (high frequency regulation)

• Output rating ≤ 5kW are 208VAC, > 5kW are 480VAC, no 4160V

• 480V/208V and 120V control power sources to each power system



Control• All current sources, except Dipole Bulk, bipolar bulk - these are

voltage regulated sources

• All unipolar use BitBus - 1 controller per

• Bipolars are Ethernet based - 1 controller per 8

• Pulsers are GPIB / PLC RS5000 based

Current Stability• Dipole 50ppm (3ppm /OC) diurnal stability

• Quadrupoles 100ppm (6ppm / OC) diurnal stability

• Sextupoles, Correctors 500ppm (30ppm / OC)



Local Control Local Readback

On / off via circuit breaker Output voltageOutput current limit Output current

Remote Control Remote Readback

Ambient temp

Power supply faults

On / off Power supply on / off

Output currents 1 & 2

Ground current fault

Power supply fault

Magnet O/T via MPS fault

Output current Output voltage


4. Electrical Interlocks

• PPS turns all off. Interface in AC distribution system, except septum

• All are enclosed. Rack doors lockable but not interlocked. Exceptions Dipole Bulk, the Dipole Chopper Module Rack, 6 Large (QD, QF, QFC, QFC, SD and SF) and 3 Kicker Pulsers

• MPS (Klixons) - BitBus controllers interface for Unipolars. Fault trips only the affected power supply

• MPS (Klixons) - Bulk PS interfaces for Bipolars. Corrector O/T trips off bulk and 8 bipolars

• No MPS interface for titanium sublimation pumps (TSPs) or injection kickers

• No accessible energy storage – exceptions are Dipole Bulk, Dipole Chopper Module Racks, 6 Large and 3 Kicker Pulsers


5. Unipolar Power Supplies

Dipole Transformer 2- 600kVA, 480V:600V

B118-TR1

Dipole Bulk Power Supply1300V, 775A, 1000kW

B118-PS7

Dipole Chopper Modules4 - 1200V, 775A, 930kW

B118-47 & -48

Dipole Power Supply



Dipole Power Supply• 36 series-connected dipole

magnets spaced around the ring

• ∆-Y 1200kVA, 12 pulse to reduce line harmonics

• 4 buck regulators (choppers)

• Three AC power sources

480V ∆, 480V Y, 120V

• For magnet names and locations ID-444-500-05 / EI-444-610-00

B11

8-TR

N1

B11

8-PS

7

B11

8-46

& 4

7


5. Unipolar Power SuppliesDipole Bulk Power Supply Diagnostics

Faults

PS Ready (Grn)

DC On (Red)

Push to Test LEDs

AC overcurrent (Red)

PS Interlock Reset

Vo (Volts)

XXXX

Emergency OffUnfiltered V Filtered V

Voltage Monitor Ports

UnfilteredV

Filtered V

+ tocom

- tocom

+ to -

Ig (mA)

XXXIo (Amps)

XXX

3-position switch

+ -com

3-position switch

Bridge 1

Bridge 2

Input φ loss (Red)

Bridge/FW Diode heatsink(Red)

Door Open (Red)

Water Flow Low (Red)

Output fuse blown (Red)

DC Overcurrent (Red)

Choppers Ready (Green)

Main AC on (Grn) Cabinet Temp/Fan failure(Red)

Smoke Detector (Red)

Status

DC Overvoltage (Red)

Output Voltage Adjust



Dipole PS Chopper Module Controller - SLAC

• Controls operation of series and parallel-connected chopper modules

• No front panel controls or adjustments

Fault Diagnostics

Voltage Current 1 Current 2


5. Unipolar Power SuppliesDipole Power Supply Schematic

480 VAC TransformerByPurchaser

∆

Y

PhaseFailure *

PhaseFailure *

Typ

100 Ω ground current sense topower supply controller

ACOvercurrent *

CT(Typ)2-1/C500kcmil/ φ

EnerproBoard

GateTrigger(Typ)PS ControllerBitBus

Chassis

VRef

∆

IsolationAmplifier (typ)

600 VAC ByPurchaser

600 VAC ByPurchaser

TempInterlock *

TempInterlock *

TransductorHead

TransductorHead

Tran

sduc

tor

Ele

ctro

nics

Tran

sduc

tor

Ele

ctro

nics

Blown fuse (typ) *

V

V

A

AV1 V3

V4V2

Diamonds representBNC diagnostic ports

Circles represent isolation ampsto front panel meters / interlocks

Current shunt (typ)

Com to 4choppersWater Flow Interlock*

* Indicates interlock/alarm

Choppers ready - 2 inputs from Chopper Controllers

Synch signal to Chopper Controllers - 2 outputs

MPS Interlock from magnet load

A

A

120VAC By Purchaser

Computer

To + choppers

To - choppers

Smoke Detector *

Blown fuse (typ) *

Overcurrent *

Overcurrent *All Power Supply

Interlocks *

Fans *

Over Voltage *

770V, 775A

770V, 775A

ACOvercurrent *

∆

Input CircuitBreaker

400µH

400µH

10µH

200µH

200µH

200µH

200µH

Input CircuitBreaker


5. Unipolar Power SuppliesDipole Power Supply Schematic

Bulk Power Supplyand PS Controller

+

Com

-

InputAC∆

InputACY

DCOutput

DCOutput

DCOutput

+ Chopper

+ Chopper

- Chopper

- Chopper

36 S

erie

s-Co

nnec

ted

Dipo

le M

agne

ts

Chopper Controller 1

Chopper Controller 2

Choppers READYSynchronizing Signals

Door Switches(typ)

2-1/C500kcmil/φ

2-1/C500kcmil/φ

1/C500kcmil (typ)



B118-PS1 through -PS6

480V / 120V breakers

BitBus controller

Power supply controller

Large Power Supplies – IE Power

• 6 each in a free-standing cabinet

• QD 70 kW for 6 Quadrant 1 magnets

• QF 70 kW for 6 Quadrant 1 magnets

• QFC 70 kW for 7 North Arc magnets

• QFC 70 kW for 7 South Arc magnets

• SD 135 kW for 28 Ring magnets

• SF 135 kW for 28 Ring magnets



Power S

upply In

terlocks

Breaker

Closed/

Control

Power (G

rn)

PS Rea

dy (Grn

)

(Interloc

k LED's

On for F

ault)

Current

Limit Ac

tive (Ye

l)

DC

Overcu

rrent (R

ed)

Air

Flow R

estricte

d (Red)

Cabin

et Overt

emp (Re

d)

PS On

(Red)

Push to

Test LE

D's

Loss of

phase o

r low AC

(Red)

D

C Overv

oltage (

Red)

Cooling

Water O

vertemp

erature

(Red)

Cabinet

Door O

pen (Re

d)

PS Inter

lock Res

et

Vo (Volt

s)Io (A

mps)

XXXXXX

Ig (mA) XXX

Output

Current Lim

it

Emergen

cy OFF S

witch

V4AV3A

V1AV2A

I1A

Voltage

AndCur

rent Mo

nitor

Ports

Ground

Current Lim

it

Gr

ound Cu

rrent Lim

it (Red)

V4BV3B

V1BV2B

I1B

Large Power Supply Diagnostics



Selle

r's Co

ntrol

Loop

SLAC

Bitb

us C

hass

isProg

rammi

ng Vo

ltage

Desir

ed Cu

rrent

Setpo

int Fr

om SL

AC C

ompu

ter

Monit

or ZF

Tran

sduc

tor ToMa

gnet

Load

Error Am

p

Erro

rAm

p

V4A

I1A

Powe

r Sup

plyCo

ntroll

er By

Selle

r

Redu

ndan

t Curr

ent M

onito

r

Feed

back

ZFTra

nsdu

ctor

V3B

I1B

SLAC

MPS

remo

ves O

N co

mman

d if m

agne

t ove

rheats

V1A

V2A

V1B

V2B

G

G

G

120 V

AC B

yPu

rchas

er

480 V

AC B

yPu

rchas

er

Rg∆

∆ Y

V3A

V4B

Large Power Supply Schematic



Magnet Family Magnet Quantity Magnet Location Power Supply Quantity NotesB7H 1 SPEAR side of BTS 2 2 in seriesB8V 1 SPEAR side of BTS 2 2 in seriesQ8 1 SPEAR side of BTS 1Q9 1 SPEAR side of BTS 1

B9V Septum 1 Ring 1QD 20 Ring 20QF 20 Ring 20TSP 72 66 Ring 6 in SS 4QDX 4 Straight 2 2 in seriesQDY 4 Straight 2 2 in seriesQDZ 4 Straight 2 2 in seriesQFX 4 Straight 2 2 in seriesQFY 4 Straight 2 2 in seriesQFZ 4 Straight 2 2 in seriesSDM 8 Straight 1SFM 8 Straight 1

157 65

Intermediate Power Supplies



Typical power supply quantity in rack

• 6 - 2.5kW, 5kW

• 4 - 10kW, 15kW

• 2 – 22.5kW

Typical BitBus Controller

Intermediate Power Supplies• 2.5 kW, 5.0kW, 10kW, 15kW, 22.5 kW• IE Power



• Standard 3 Φ 480V or 208V, 150A feed to every power supply rack

• Individual rack and PS circuit breakers are 30A

• Rack breakers are pad-lockable and fault-current rated

• Power supply breakers are on/off only and do not have trip elements

Intermediate Power Supplies



Intermediate Power Supplies - minimal front panel control

1 2 3 4 5 6

CurrentLimit



Intermediate PS - Titanium Sublimation Pumps (TSPs)

• Used to pump chemically reactive, getterable gases, such as H2, H2O, CO, N2, O2, CO2.. Titanium is effective, easily sublimed, and inexpensive.

• Have high pumping speeds, typically 10 l / sec / cm2.

• Long-life filaments are 85% titanium and 15% molybdenum


B118-14 B118-15

Switch Chassis

Power Supplies

• 72 TSPs, 66 in ring, 6 in SS

• 4 operating power supplies – 5th spare

• 5 switching chassis, 16 channels each

• PS control / read-back is BitBus

• Switching chassis control / readback VME (B118-29)

• Operate 1 TSP per PS (quadrant)

• Automatic remote sequential switching with manual possibility

• No ground fault detection / protection

• Possible software PS inhibit if vacuum corrupted




Control Loop

BitBus Chassis

Programming Voltage

Desired Current Setpoint From Computer

MonitorTransductor

FeedbackTransductor

ToMagnet

Load

GateDrivers

ErrorAmp

ErrorAmp

Redundant Current Monitor

MPS removes ON command ifmagnet overheats

IntermediatePowerSupply

ControlPower



• Precision, ultra-stable BitBus Controller• Designed by Dave MacNair• Computer - PS and PS - computer communicator• Feedback loop • MPS interface connector on rear panel

On / Off

Status Local / Remote

RS232 Diagnostic Connector

Daughter BoardRC tuning networkError amplifierBitBus addressScaling factors



19 bitDAC

19 bitADC

8044µP

Ref

BitBusMaster

VME CrateB118-29

BitBus Power Supply Controller Power Supply Current Transductors

Ground Sense R

+

-

MPS/PS

Intrlks

375 kb/secSerial TSP

BurdenResistor

I Sense and Aux Power

ErrorAmplifier Klixon

To nextcontroller ortermination

Program

I Sense and Regulation

Control

BitBusMaster

BitBusMaster

To Chain 2

To Chain 3BitBusMaster

To Chain 4

• Power supplies are voltage regulated• SLAC/SSRL adds external current regulation



Danfysik Current Transductors

Dipole power supply 1000A transductors• Bulk Power Supply• Chopper Module Rack

150A / 600A transductors all other unipolar power supplies

Two transductors per power supply• Current feedback loop• Verification


6. Bipolar Power Supplies

• 30A, 50V “MCOR30”

• Designed by Greg Leyh ofPCD

• 108 H & V correctors

• 14 Skewquads

• 15 Insertion Device Trims

• 1 switched Quadrupole Modulation System (QMS)

• 1 Dipole Trim

• 138 total power supplies

• 168 accommodationB118-37 to B118-44

QMS

Switches



• 3 crates in a rack

• 1 bulk power supply per crate

• Bulk is a voltage source. Set voltage manually

• Bulk local V and I analog meters

• No bulk remote control or read-backs

• Bulk is MPS interface



• 50V, 30A rating

• Up to 8 in a crate

• L to R: Slots 00, 0, 1, 2, 3, 4, 5, 6, 7

• Left most slot (00) is a new 8-channel Ethernet-based 100Mbps controller for remote control

MCOR30 in crate


• 3 injection kicker pulsers• 3 magnets Quad 1, Sectors 3

and 4• K1, K3 1.2m 13kV, 2400A• K2 0.6m 7kV, 2600A

• Pulse < 780nS. 10 Hz

7. Pulsed Power Supplies

K2 K3

K1 B118-16

K2 B118-17

K3 B118-18

2 SRS Trigger generators – input from timing system and GPIB interface for trigger delay and pulse width adjustments

PLC RS5000 interface-turn on/off, interlock information, set Vo



K2 K3

K1 B118-16

K2 B118-17

K3 B118-18

Panel for local magnet current read-backs via CT and tie to Jorgensen digitizers.

Pulse capacitor charger power supplies


• New solid-state, no PFN or thyratron

• Low maintenance, low jitter, high reliability



Add waveform


600nS

2600A

Magnet I VS Time


10 Sections2kV 3000A each200nsec rise time

out+1

out-2

in+ 3

in- 4

PS1

2KV

C

-+

Q

D

3

D15k

C2 12ufd 2Kv

-

Gri

d

Em

itter

GR

N+1

5V

Col

lect

or

DRV2

IGBT DRIVER

+

Q2

4.5kv-600A

D2

3 kv

D25kv

R2

0.5 OHMS

C3 12ufd 2Kv

-

Gri

d

Em

itter

GR

N+1

5V

Col

lect

or

DRV3

IGBT DRIVER

+

Q34.5kv-600A

D3

3 kv

D35kv

R3

0.5 OHMS

C4 12ufd 2Kv

-

Gri

d

Em

itter

GR

N+1

5V

Col

lect

or

DRV4

IGBT DRIVER

+

Q44.5kv-600A

D4

3 kv

D45kv

R4

0.5 OHMS

C5 12ufd 2Kv

-

Gri

d

Em

itter

GR

N+1

5V

Col

lect

or

DRV5

IGBT DRIVER

+

Q5

4.5kv-600A

D5

3 kv

D55kv

R5

0.5 OHMS

C1012ufd 2Kv

-

Gri

d

Em

itter

GR

N+1

5V

Col

lect

orDRV10

IGBT DRIVER

+

Q10

4.5kv-600A

D10

3 kv

D105kv

R10

0.5 OHMS

SSRL Induction Kicker+ +

+ +



Happy Operations!

SPEAR 3 Overviews AC Distribution System - Marjorie ...

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