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Sea Grant College Program Massachusetts Institute of Technology Cambridge, Massachusetts 02139 Project No. 2008-ESRDC-01-LEV
ANALYSIS OF VARIOUS ALL-ELECTRIC-SHIP ELECTRICAL DISTRIBUTION SYSTEM
TOPOLOGIES (PPT)
J. Chalfant and C. Chryssostomidis
MITSG 11-15
PortPropulsion
Motor
Motor Drive
AC Brkr
ATGMTG
AC Brkr
Energy Storage Rectifier Rectifier
Zone 4 Load
Center
Zone 3 Load
Center
Zone 1 Load
Center
Zone 2 Load
CenterRadarDC/DC
DC/DC
MTGATG
AC Brkr AC Brkr
Pulse Charging
Pulsed Load
Motor Drive
R tifi
Analysis of Various All-Electric-Ship
MTGATG Pulsed LoadRectifier Rectifier DC/DC
Electrical Distribution System TopologiesJulie Chalfant Chryssostomos ChryssostomidisJulie Chalfant, Chryssostomos Chryssostomidis
April 11, 2011
OutlineOutline
• Architectural ModelArchitectural Model• Notional Ship
Di t ib ti S t• Distribution Systems• Results and Conclusions
ARCHITECTURAL MODELARCHITECTURAL MODEL
Architectural ModelMetrics:
i ht
Architectural Model
• weight • volume • efficiency (fuel)• vulnerability • quality of service • cost
Fully-integrated i l ti f cost simulation of
• electrical, • hydrodynamic, y y• thermal, and • structural
components of the shipcomponents of the ship operating in a seaway.
Architectural ModelArchitectural Model
MATLAB, Paramarine
Modules:Modules:• Electrical Distribution System• Power Train• Cooling System• Resistance• Propulsion PowerPropulsion Power• Fuel Usage (Operational Scenario)• Survivability
Architectural ModelArchitectural Model
• Ship Object ClassShip Object Class– Name, Weight, Dimensions (LWH), Location,
Orientation Max Power Load (Cost MTBF)Orientation, Max Power, Load, (Cost, MTBF)• PCM, PDM, PGM, PLM, PMM, ESM
Effy SFC as a fn(load)– Effy, SFC as a fn(load)• BUS Class
– Loc1, Loc2, Nr of Cables, Conductor Size, (Resistance), Ampacity, MaxV, (MaxPower), Load Diameter WeightLoad, Diameter, Weight
Equipment LibraryEquipment LibraryEngines
GE LM2500 LM500Converters
AC t DC– GE LM2500, LM500– Rolls Royce MT30,
RR4500
– AC to DC• ABB Rectifier 36MW• 12-pulse Rectifier 40MW
Motors– ALSTOM/Converteam
19MW, 34MW
p• 12-pulse Rectifier 5MW
– DC to in-ZoneS t PCM1 PCM219MW, 34MW
Circuit Breakers– AC: ABB Emax, ADVAC
• Satcon PCM1, PCM2, PCM1A
– Transformers– DC: Secheron UR26 and
extrapolation
Energy Storage
• Federal Pacific GT S1500H
– Motor Drives• Sinamics GM150/SM150Energy Storage
– ABB PCS100– Battery ESS
• Sinamics GM150/SM150• ABB ACS 6309-A18, ACS
800
Equipment LibraryEquipment Library
Cabling AC PlantsCabling– General Cable Offshore
MVRIG and Polyrad15KV 2KV and 600V
AC Plants– Various York, Trane plants
from 100-6000 tons
Pi i– 15KV, 2KV and 600V – single and 3-conductor, – armored and sheathed,
d d
Piping– Standard CuNi
and unarmored– various ampacities
electrical distribution analysisfuel usage (operational scenario)
MODULES
fuel usage (operational scenario)vulnerability
MODULES
Electrical Distribution Analysis
• Max-flow, Min-cost algorithmDirected weighted graph with super sink• Directed, weighted graph with super-sink
• Loads are filled in priority order• Network capacity subtracted along the
path as each load is satisfied• Determine load on each component and
thus losses.
Operational ScenarioOperational Scenario• speed-condition profile, p p ,
– percent time spent at various speeds and battle conditions
S l d fil• Sample speed profiles
15ime
NAVSEA Nominal
15
Tim
e
Rough Actual Data, 1998
5
10
ent o
f Ope
ratin
g T
5
10en
t of O
pera
ting
T
A t l fil d i l d b ttl
0 10 20 300
Speed (kts)
Perc
e
0 10 20 300
Speed (kts)
Per
ce
• Actual profiles used include battle condition as well.
SurvivabilitySurvivability• Impose damage, then remove damaged
equipment/cabling from the directed graph and distribute remaining power on a priority basis. T f ld i bilit t i i th f f• Twofold survivability metric in the face of damage:
maximum value of all loads that can be serviced– maximum value of all loads that can be serviced, proceeding in priority order
– highest priority load that cannot be filled while g p ysatisfying all higher priority loads
• Survivability scores are averaged over a large number of blasts, and can be calculated or single or multiple blasts.
LoadsOperational Scenario
NOTIONAL SHIP
Operational ScenarioElectrical Distribution Systems
NOTIONAL SHIP
Notional ShipNotional Ship
• Notional Destroyer similar to DDG 51Notional Destroyer, similar to DDG 51• ESRDC MVDC Baseline topology
22 l d t l d i 4• 22 lumped-parameter loads in 4 zones • plus selected propulsion motors, radar,
pulse weapon, and generators.
Notional loadsNotional loads
Cruise BattleCruise BattleZone 1 1,382 2,790Zone 2 1 685 3 241Zone 2 1,685 3,241Zone 3 2,149 3,890Zone 4 839 2,965o e 839 ,965
Radar 2,850 3,750Pulse Weapon 0 10,000
Notional Ship Total Motor Load
Speed (kt) Load (kW)0 00 05 203
10 1 41510 1,41515 4,69620 10 99620 10,99625 24,08530 60 40730 60,407
Notional Ship Layout, Generated in Paramarine
Z 2 Z 1Z 3Z 4 Zone 2 Zone 1Zone 3Zone 4
Baseline Ring Bus
PortMotor Drive
ATGMTGEnergy Storage Rectifier Rectifier
PropulsionMotor
AC BrkrAC Brkr
Zone 4 Load
Center
Zone 3 Load
Center
Zone 1 Load
Center
Zone 2 Load
CenterRadarDC/DC
DC/DC
Pulse Charging
DC/DC
MTGATG
AC Brkr AC BrkrC a g g
Pulsed Load
Motor Drive
StbdPropulsion
Motor
Rectifier Rectifier DC/DC
Motor
Modified Ring BusPort
Propulsion
Motor Drive
ATGMTGEnergy Storage Rectifier Rectifier
g
MotorAC BrkrAC Brkr
Zone 4 Load
Center
Zone 3 Load
Center
Zone 1 Load
Center
Zone 2 Load
CenterRadarDC/DC
DC/DC
Pulse Charging
MTGATG
AC Brkr AC BrkrC a g g
Pulsed Load
Motor Drive
StbdPropulsion
Motor
Rectifier Rectifier DC/DC
Motor
Breaker-and-a-HalfPort
PropulsionMotorATGMTG
Energy StorageRectifier Rectifier
Motor DriveAC BrkrAC Brkr
DC/DC
Zone 2 Load
RadarZone 1 Load
Center
Zone 3 Load
Center
Zone 4 Load
Center
Load Center
Pulse Ch i
MTGATG
AC Brkr AC Brkr Charging
Pulsed Load
Motor Drive
StbdPropulsion
Motor
Rectifier Rectifier DC/DC
Motor
ResultsResultsRing Bus Breaker and a
HalfHalfTotal Weight (lton) 792 693Total Volume (ft3) 42,721 38,527( )Annual Fuel (lton) 16,861 16,805Total Loss (kW) 3,383 3,382Single-Hit Survivability
98.34 97.17
D bl Hit 91 25 86 47Double-Hit Survivability
91.25 86.47
Ring bus is lighter and smaller but has reduced survivability.
ConclusionsConclusions
• Further development of architecturalFurther development of architectural model to include:
OOP– OOP– Modularity
Equipment library– Equipment library• Single/Multi blast survivability• Efficiency over range of operating
conditions
Thank you!y
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