Post on 28-Mar-2018
RedundantPOWER
UNIT
Modular ArchitecturesCentralized Parallel Architecture (CPA)
RedundantPOWER
UNIT
RedundantPOWER
UNIT
CENTRALPROCESSING
UNIT
MAINS 1 MAINS 2
CENTRALCONTROLPANNEL
CENTRALBATTERY
PACKS
CRITICAL LOAD
CENTRALSTATIC BP
SWITCH
In a Centralized Parallel Architecturesthe system is composed of commonsystem building blocks:
The only Decentralized Parts arethe Power Units.
• CPU• Control Panel• Static Bypass Switch• Battery
November 20, 2012 Slide 2© ABB Group
ABB UPS ConceptsTrue Modularity
DPACONTROLPANNEL
DPA CENTRALPROCESSING
UNIT
DPAPOWER
UNIT
DPA STATICBP SWITCH
CRITICAL LOAD
MAINS 1 MAINS 2
DPACONTROLPANNEL
DPA CENTRALPROCESSING
UNIT
DPAPOWER
UNIT
DPA STATICBP SWITCH
DPACONTROLPANNEL
DPA CENTRALPROCESSING
UNIT
DPAPOWER
UNIT
DPA STATICBP SWITCH
DPABATTERY
PACKS
DPABATTERY
PACKS
DPABATTERY
PACKS
Decentralized ParallelArchitecture (DPA)TM
distributes the entire UPSHardware and Softwareinto each module.
A DPA systems includesdistributed/decentralized:
• CPU;• Control Panel;• Static Bypass Switch;• Power Unit and• Separate Battery
November 20, 2012 Slide 3© ABB Group
27 March 2011DPA UPScale
4
DPA UPScaleTM HIGHLIGHTS and Benefits
• High level of decentralization
• Multi Master and Slave Technologythrough a simplified BUS Communication
• Full redundancy on inverter
• Full redundency on Static Bypass Switch (SBS)
Decentralized Parallel Architecture DPA
Reference: EYP Mission Critical Facilities
Equipment Failure28%
System Design20%
Human Error18%
Equipment Design13%
Installation Error10%
Natural Disaster3%
Commissioning or TestDeficiency
4%
MaintenanceOversight
4%
36% Failures caused byHuman Error
33% Failures caused bylack of design
28% Failures caused byequipment failure
The Causes of CRITICAL UPS FAILURES
Standardization benefits… and finally: System reliability and availability
Standardized solution canimprove most of these
RightsizingStandalone vs modular - Example
| Slide 6
Modular design allows the power protection capacity to be added whenneeded to meet the existing/actual demand, instead total up front deployment.
© ABB Group
Top-of-the-line PerformanceHigh double conversion efficiency
© ABB GroupNovember 3, 2014 | Slide 7
§ High efficiency reaching - and exceeding 96%§ Having the curve flat means that high efficiency is reached already at low load levels
Ø 95.8% at 25% load
November 3,2014
| Slide 8© ABB
The mission for increased availabilityAdvantages of the modular UPS concept
Add redundancyto the system
Ø Modular architecture introduces redundancy to the system automaticallyØ With decentralized paralleling architecture all modules are automatically redundant
with each otherà single points of failure in the UPS are eliminated
Minimize chancefor human error
Ø Simplicity of service + maintenance of ABB’s modular UPS mitigates human errorØ Modular architecture allows for implementation of simple and standardized power
protection and service concept across installations
Select high quality,reliable equipment
Ø Use reliable double conversion UPS technologyØ High “Swiss made” quality with 20 years experience on modular UPS
Minimize oreliminate need fordowntime
Ø UPS with modular architecture secures concurrent maintenanceØ With decentralized paralleling architecture all modules are capable to function
independentlyØ With on-line swappable modules, critical load does not need to be shut down or
transferred to raw mains during when UPS is being serviced
Secure simplicityand easiness ofservice
Ø Modular UPS allows also for simplifying and standardizing the complete serviceconcept across installation and sites!
Ø Same technology base and UPS concept can be used across load segments andapplications!
© ABB Group
UPS service with online swappable modules:
§ Concurrent maintenence by swopping the modules
§ Concurrent repair by swopping the module
§ Limited spare parts inventory in quantities,
different articles and total value
§ Minimized human errors
§ Standardised service training
Operator training can be standardized and simplified since theUPS system is a standard solution.
Standardization benefitsOperation and maintenance
Conceptpower DPA 500Advantages of the modular UPS concept
Ø Combines the right-sizing approach with scalability,Ø Pay-as-you-grow solution lowers your capital costs and increases
utilization ratesØ Innovative technology allows for maximal power density that frees
space for other critical equipment.
Ø Electrical and physical modularity allows for rapid installation withminimal engineering.
Ø Same product and technology base can be selected to match theneeds of each data center and each load segment
Ø Modular architecture allows for implementation of simple andstandardized power protection and service concept acrossinstallations.
Ø On-line swappable modularity ensures need for scheduled andunscheduled downtime is minimized
Optimize and save on capitalinvestment
Accelerate speed ofdeployment
Decrease complexity andcosts of service andmaintenance
Decrease the operating costs
Ø With efficiency of 96% in double conversion and 99% in ECO mode,the operating costs can be >40% less compared to UPS of previousgeneration
Ø Increased availability and load uptime result in increased utilization
| Slide 10© ABB Group
TCO – Energy Efficiency
Month DD, Year | Slide 11© ABB Group
90
91
92
93
94
95
96
97
25% 50% 75% 100%
Effi
cien
cy(%
)
Load (%)
95 95 95
96
90
92
93
Modular Freestanding (Legacy)
“
”
For optimumefficienciesUPSsystemsshould begreater than75% loaded
TCO – Energy Efficiency(Example)
Month DD, Year | Slide 12© ABB Group
Energy Cost – typical commercial tariff = 0.10 $/kWhCooling factor = 0.4
Freestanding Modular
Percentage load 50% 75%
Efficiency 90% 95%
Critical load 1,000 kW 1,000 kW
Total UPS input power 1,111 kW 1.052 kW
Total UPS heat loss 111 kW 53 kW
UPS ‘losses’ cost per year $ 97,333 $ 46,105
Cooling costs per year $ 38’933 $ 18,442
TOTAL COST PER YR $ 136,267 $ 64,547
Electricity saving over 5 years = $ 358,596
Total Cost of Ownership – Energy efficiency
Month DD, Year | Slide 13© ABB Group
Energy’ cost savings
$17,929k$1,792k$10,524k$1,052k$ 3,433k$ 343k5,000
$ 3,585k$ 358k$ 2,104k$ 210k$ 686k$ 68k1,000
10 years5 years10 years5 years10 years5 yearsLoad (kW)
5%3%1%Efficiencydifference
• kWh cost = $0.10 Cooling factors = 0.4
Don’t look only at the initialcosts, but take also intoconsideration the TCO
27 March 2011DPA UPScale
14
Benefits:
• No phasecompensation filterrequired
• Respect power gridregulations
• Energy savings
Advanced Booster PFC circuit to provide near-unityInput PF even with partial loads.
0.5
0.6
0.7
0.8
0.9
1
25% 50% 75% 100%Load %)
Inpu
tPF
(%)
0.990.96 0.985 0.99
Input Power Factor versus load
Reduced TCO
DPA UPScaleTM /
Environmental Friendly
28 March2011Conceptpower DPA15
UPS2
CoolingSystem
UPS1
8 Large space required : expensive8 Large cables : expensive8 Lower efficiency : high losses8 Dedicated cooling system:
expensive8 Redundancy far from load
• INITIAL INVESTMENT COST….. HIGH• TCO....... HIGH.
Right Sizing ??
Scalability & Flexibility
28 March2011Conceptpower DPA16
8 Modular UPS design (pay as you growth)8 Simpler and less expensive cabling8 Redundancy close to point of use8 Reduced floor space utilization8 No dedicated cooling system8 Easy to service - replacement modules8 High speed of deployment
• INITIAL INVESTMENT COST… LOWER• TCO....... LOWER
FREE SPACE - NO UPS ROOM REQUIRED
O O O
O O O
O O O
O O O
O O O
O O O
Right Sizing with Modules!!
Scalability & Flexibility
Standardization benefitsEnergy efficiency, over capacity vs. right sizing
© ABB Group
3000kW + 3000kW system
1200kW + 1200kW system
Centralized power protection concept: Power demand can vary greatly, from 500kW up to 3 MW and above.
Only a modular UPS is capable to adapt changes in power demand in a changing infrastructure
19
Load
PDU
’sB
Centralised large tier 4 system using mono-bock UPS in parallel
PDU
’sA
GG G G
Mechanicalloads B
Mechanicalloads A
UPS System B
6 x 500kW
UPS System A
6 x 500kW
Modular UPS development leads to higher powerModule of 100kW a complete UPS
November 3,2014
| Slide 20© ABB Group
==
==
Bypass input
CriticalLoad
Rectifier input
100kW UPS module
November 3, 2014 | Slide 21© ABB Group
500 kWFrame
IA1
Bypass input
Rectifier input
CriticalLoad
==
==
100 kW
==
==
100 kW
==
==
100 kW
==
==
100 kW
==
==
100 kW
ConceptFurther scalability up to higher power (3MW)
© ABB Group
§ Frames can be connected in parallel to achieve 3 MW system total power.§ Multiple benefits follow from the advanced scalability:
§ Adding capacity to system is easy§ Adding redundancy to increase availability and reliability becomes easy§ Standardizing UPS system to serve load segments of different sizes is
reality
Benefits of standardizationSavings w/o surprises both when building and when operating a data center
© ABB Group
Modular scalability enables the users with varioustypes and sizes of data centers to:Ø Optimize the solution according to the needs of
each data center or each load segmentØ Increase the system availability and gain
savings due to simple and standardized powerprotection concept
Ø and due to very efficient service conceptSmall or big
… growing … modular
4000kVA UPS-I SLD Drawing
© ABB GroupNovember 3, 2014 | Slide 26
§ The 4000kVA UPS-Iis made up of 3 x1350 kVA Energydelivery units(EDU’s) and oneutility disconnect(SCR Switch)
§ The System mastercontrols the Energydelivery units and theUtility Disconnect(SCR switch)
§ The system is faulttolerant with manylevels of redundancy
Mega UPS Integration
§ Single 4000kVA system advantages
§ Reduced infrastructure cost
§ Only two 22kV ACB’s required
§ Small footprint
§ Features
§ Multi level redundancy
§ Storage string redundancy
§ Inverter redundancy
§ Energy delivery unit redundancy
§ Charger Redundancy
§ Fail safe protection integrated intothe maintenance bypass
© ABB GroupNovember 3, 2014 | Slide 27
Supply A 22kV
Supply B 22kV
UtilityDisconnect
Inverters
4000kVA UPS-I
Storage Coupling TX
DCprotection
ProtectedLoads
K
0.480kV 0.480kV
22kV 22kV
NO NC
NO
NC
NC
Mega UPS Integration
© ABB GroupNovember 3, 2014 | Slide 28
§ Distributed loading on loading on dual 22kV supplies
§ No Backup UPS-I required due to the integrated redundancy in UPS-I
Supply A 22kVSupply B 22kV
22kV 22kV
0.48kV 0.48kVNCNO
NC
NC
NO4000kVA UPS-I
Load
NCNC22kV 22kV
0.48kV 0.48kVNCNO
NC
NC
NO4000kVA UPS-I
Load
NCNC22kV 22kV
0.48kV 0.48kVNCNO
NC
NC
NO4000kVA UPS-I
Load
NCNC22kV 22kV
0.48kV 0.48kVNCNO
NC
NC
NO4000kVA UPS-I
Load
NCNC
Mega UPS Plant IntegrationWith Maintenance Backup UPS-I
© ABB GroupNovember 3, 2014 | Slide 29
§ Additional UPS-I for Maintenance and redundant backup
Maintenance andredundant backup UPS-I
22kV 22kV
0.48kV 0.48kVNONC
NC
NC
NO4000kVA UPS-I
NCNC22kV 22kV
0.48kV 0.48kVNCNO
NC
NC
NO4000kVA UPS-I
Load
NCNC
NCNO
22kV 22kV
0.48kV 0.48kVNONC
NC
NC
NO4000kVA UPS-I
Load
NCNC
NCNO
22kV 22kV
0.48kV 0.48kVNCNO
NC
NC
NO4000kVA UPS-I
Load
NCNC
NCNO
4000kVA Layout 5 Minute DesignNo maintenance bypass or storage
© ABB GroupNovember 3, 2014 | Slide 30
This area for AC and DC internal power cabling where there is no cable trench
CouplingTransformer
EDU 1
CouplingTransformer
EDU2
CouplingTransformer
EDU 3
Inverter ModulesEDU 1
SystemMaster
Inverter ModulesEDU 2
Inverter ModulesEDU 2
CircuitBreakers
UtilityDisconnect
CustomerConnections
Inverter ModulesEDU 1
SystemMaster
Inverter ModulesEDU 2
Inverter ModulesEDU 2
CircuitBreakers
UtilityDisconnect
4000kVA Layout 5 Minute DesignNo maintenance bypass or storage
© ABB GroupNovember 3, 2014 | Slide 31
Most compact layout, Cable trenches required
Utility Disconnect Overload CapabilityPreload of 4.0MVA @ 27 degrees Celsius
© ABB GroupNovember 3, 2014 | Slide 32
Overload capability
60 seconds 5052 Amps
30 seconds 6315 Amps
10seconds 8420 Amps
5 seconds 12630 Amps
Not more than once every 10 minutes
Fault current
65kA 25 milli seconds
Utility Load
Power Flow
Seconds4000
5000
6000
7000
8000
9000
10000
11000
12000
13000
0 10 20 30 40 50 60
Amps
Utility Disconnect
§ Current rating 4810amps (4000kVA, 480V) at 27oC
§ Current rating 4330amps (3600kVA, 480V) at 40oC
© ABB GroupNovember 3, 2014 | Slide 33
Utility Disconnect
Inlet airfilters
Degrees
Celsius
kVA
Temperature V’s KVA Rating
Utility Disconnect
300031003200330034003500360037003800390040004100
27 28 29 30 31 32 33 34 35 36 37 38 39 40
Energy Delivery Unit (EDU) Specifications
© ABB GroupNovember 3, 2014 | Slide 34
Capacity Rating 3 x 1350 kVA (4050 kVA)
Displacement Power Factor of Connected Load 0.5 lagging to 0.9 leading (dependent on batteryavailable)
Crest Factor for Rated kVA 2.2
Maximum allowed directly connected motor<1.8ms transfer
25% of rated kVA
Contact ABB for applications with greater thandirectly connected motors
Overload Capability 122% for 30 s
Displacement Power Factor of Connected Load 0.5 lagging to 0.9 leading
EDU’s
Downstream Fault While the EDU’s are supporting theloads
§ EDU system nominal rating 4050 kVA, 4870 amps
§ 3 x EDU’s into a short circuit 133% for 500ms (6479 Amps)
§ 2 x EDU’s into a short circuit 133% for 500ms (4319 Amps)
§ If the fault does not clear in 500ms the Utility disconnect (Static Switch) will be turnedon, this will allow the utility voltage to clear the fault
§ When the fault clears the UPS-I will continue operation
§ The EDU units will not be damaged by this event
© ABB GroupNovember 3, 2014 | Slide 35
Utility
Power Flow
Pow
erFl
ow
Pow
erFl
ow
Pow
erFl
ow
Loads
Fault
Loads
Loads
Loads
4000kVA UPS-I Energy Delivery Unit Rating.
© ABB GroupNovember 3, 2014 | Slide 36
Minutes
kVA
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
EDU Duration on Batteries Verses Load
3 x EDU’s functioning
2 x EDU’s functioning
1 x EDU functioning
EDU’s
4000kVA Float Charger Redundancy
§ To maximize system efficiency the inverter chargersshut down after the bulk charge is complete. Thenthe low power float charger continues to charge thebatteries to 100% charge
§ The float charger cycles to maintain the float voltageon the batteries at 780VDC (adjustable to suitspecific battery chemistry)
§ If a float charger fails the inverter chargers willmaintain the battery charge. Normal inverterredundancy applies during charger function
© ABB GroupNovember 3, 2014 | Slide 37
Float Charger
Inverter Charger