Transcript US-RUPS/Rotary UPS: Technical Presentation

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CM Technology
US-RUPS Product Line Introduction
Base Line Rotary Products
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A Rotary Ride-Through Power →→ Reliability at its Best!
Flywheel Based
Critical Load Power Outage
Rotary Ride-Through
Products and Systems
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US-RUPS
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Core Products and Power Systems Offer
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Core Rotary Products:
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Flywheel RRT (Rotary Ride-Through ) Units
Rotary UPS (Uninterruptable Power Supply)
Units, with Diesel Engine Extended Power
Backup
Rotary Power Systems:
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Multi-unit Flywheel RRT and electrically
coupled Diesel Genset based Systems
Multi-unit Rotary UPS with mechanically
clutched Diesel Engine based Systems
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Rotary Products Advantages
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Rotary → Flywheel based, Core Product
Advantages:
 Robustness of Rotary Machinery
 High Overload and Short Circuit
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Capabilities
Flywheel based instead of Battery based
Energy Storage
Bi-directional Harmonic Filtering
Load Power Factor Compensation
High Load Bus Fault Clearing Capability
Precision of Power Electronic V-Controls
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Rotary Products User Benefits
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Critical Load Service Reliability Protection Benefits:
1.
High Reliability, UPS Grade Power Source
 Fewer components and no low-reliability
battery required
2.
Low Operating and Maintenance (O&M) Costs
 High efficiency, no A/C system required
 Near unity power factor, no VAR penalty costs
3.
Ease to Install & Long Service Life
 Robust and simple construction
 25-year service life, low life-cycle costs
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Rotary Product Baselines
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Rotary UPS / Flywheel RTD One-Lines
BYPASS
BREAKER
LINE
FEEDER
CRITICAL
LOAD BUS
LINE
BREAKER
ISOREACTOR
AC
DC
STATOR
BREAKER
AC
Variable
LOAD
BREAKER
ROTOR
(SLIP) POWER
CONVERTER
SWITCHGEAR &
CONTROLS PANEL
CLUTCH
DIESEL
ENGINE
DIESEL ENGINE
POWER BACKUP
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rotor
INDUCTION
MACHINE
SKID
US-RUPS
FLYWHEEL
stator
ROTARY
SKID-MOUNT
EQUIPMENT
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Rotary Product Baselines
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UPS Power Delivery to Critical Load Bus – Principle Explained
100
Grid
90
80
Flywheel
70
Diesel
60
50
Flywheel
rpm
Diesel
rpm
40
30
20
10
0
-1
0
1
2
3
4
5
6
7
8
9
10
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12
13
14
15
16
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Time (sec)
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2.2MVA Rotary UPS Product Implementation
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Switchgear & Control Panels
Induction Motor/Generator
HMI & PLC
Flywheel
Diesel Engine
Skid-mount
Radiator
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Rotary Equipment Skid
US-RUPS
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2.2MVA Rotary UPS Product Implementation
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Rotary Equipment Monitoring System by SKF:
 Enables timely field
preventive maintenance.
 Bearing changes
without equipment
piece movements.
 No crane required for
preventive maintenance.
 Local Monitoring through Control Panel Terminal
 Remote Monitoring through LAN or Phone Modem
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Product Core Specifications
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1
Nominal Input Voltages
480V and 600V, 60 Hz Standard LV,
MV through Step Up Transformer
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Output Voltage Regulation
+/- 1% for +/- 10% input
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Power Outage Ride-Through
12 seconds minimal. Flywheel RTT,
Unlimited1, Rotary UPS
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Overload Capability
150%, 1min., 125%, 5 min., 110%, 1hour
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Efficiency
Greater than 96% at rated load
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Fault Clearing Capability
500% for 0.1 sec
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Peak Inrush Current
None, includes VFD type Soft Start
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Power Factor Range
Unity to 0.95 inductive
1. Limited by fuel storage size and/or by refill fuel deliveries
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Product Performance
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Power Interruption →
Open Circuit Ride-Through
Engine
Open Circuit
Interruption
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Product Performance
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Power Interruption → Short Circuit Ride-Through
Load Bus
Voltage
Input Line
Voltage
Reactor(LIR)
Current
Input Line
Current
Dead Short Circuit at Line Side of Reactor
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Product Performance
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Step Load ON Response:
0.1 V = 100 V
0.1 V = 600 A
3300A pk
410A pk
0.1 V = 100 A
Instant of 80% Step Load Application
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Product Performance
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Step Load OFF Response:
Instant of 80% Step Load Removal
0.1 V = 100 V
0.1 V = 600 A
0.1 V = 100 A
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Product Performance
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Load Power Factor (PF) Compensation and
Total Harmonic (THD/TDD) Distortion Reductions:
At Input Line Terminals
At Output Load Terminals
1.0, Unity PF
0.91 PF
1.0% Voltage THD
1.5% Voltage THD
3.2% Current TDD
5.5% Current TDD
Actual data from 315kVA Rotary UPS Unit, approximately 120kW, 6% unbalanced load.
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Product Configurations
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By Critical Load Support Time:
Critical Load
Support Time @ Full Load
Product
Configuration
12 or 24 Seconds
Flywheel RTT:
Single Flywheel: 12 sec, min.
Dual Flywheel: 24 sec, min.
Unlimited Time1
Rotary UPS:
With Diesel Engine Backup
With Dual Fuel (D-NG) Engine
Note 1: Limited by fuel storage size and / or by fuel refill deliveries
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Multi-unit System Applications
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UTILITY
GRID
OPTIONAL
CENTRAL
CONTROL
PANEL
data communication bus
bypass control
sync signal
LOCAL
OPERATOR
INTERFACE
CONTROL
LOCAL
OPERATOR
INTERFACE
CONTROL
LOCAL
OPERATOR
INTERFACE
CONTROL
BYPASS
BREAKER
RUPS 1
RUPS 2
RUPS 3
LOADS
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Multi-unit System Applications
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Induction Machine Generator (IMG) Provides Important Advantages
Over Synchronous Machines in Multiple-Unit System Configurations
The excitation frequency/phase of the IMG is determined by high-speed
electronic control.
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Load frequency/phase is not influenced by rotor speed/position.
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Multiple IMGs can be perfectly synchronized with precise electronic
frequency control.
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Machine speed differences do not cause circulation of real power.
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Load steps have no effect on frequency.
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Multi-unit System Applications
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Control Modes:
Connected to utility grid
 Tie-inductors of all Rotary units are in parallel between grid bus and load bus.
 Power from the grid is shared as a result of the (equal) tie inductors.
 IMGs regulate load bus voltage level by providing fast reactive power.
 IMGs share reactive power through a voltage droop algorithm.
 IMGs provide transient real power for sudden load steps.
 Real power for each IMG may be different. Real power for each unit
 is limited by the internal control.
Disconnected from the utility grid
• Electronic synchronization signal keeps the excitation of all IMGs
precisely locked in phase (and frequency).
• Leakage reactance of the IMGs ensures real power sharing.
• IMGs regulate load bus voltage level by providing fast reactive power.
• IMGs share reactive power through a voltage droop algorithm.
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Multi-unit System Applications
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Normal Startup Sequence – All Units Started From Standstill
RUPS
1
ICCB
ICCB
ICCB
MGCB
MGCB
MGCB
SSCB
SSCB
SSCB
BICB
BICB
BICB
LBCB
RUPS
2
RUPS
3
RUPS
1
LBCB
LOADS
1)
Stator shorted. Units
accelerate to gridconnection speed using
grid power drawn
through tie inductor.
June 10, 2011
2)
RUPS
2
RUPS
3
RUPS
1
LBCB
RUPS
2
RUPS
3
LOADS
IMG synchronizes to grid and MGCB
closes. IMG accelerates to normal
standby speed using grid power drawn
through tie inductor. When all units
are at standby speed, IMG
synchronizes to grid again.
US-RUPS
LOADS
3)
LBCB in all units
close and bypass
breaker is opened.
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Multi-unit System Applications
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POWER SOURCE A
(FREQUENCY/PHASE A)
Transfer Load Bus
From One Unit to
Another
POWER SOURCE A
(FREQUENCY/PHASE A)
INPUT BREAKER A
RUPS
A
INPUT BREAKER B
ICCB
ICCB
MGCB
MGCB
SSCB
SSCB
BICB
BICB
RUPS
B
LBCB
LOAD A
LBCB
BUS TIE BREAKER
LOAD B
1.
Unit A and Unit B initially supply separate load buses from different power sources
2.
INPUT BREAKER A opens, putting Unit A in UPS mode.
3.
Synchronizing source voltage for Unit A is switched from input voltage of Unit A to LOAD B bus voltage.
4.
Unit A synchronizes to LOAD BUS B voltage.
5.
BUS TIE BREAKER closes and Unit A LBCB opens. Transfer is complete.
June 10, 2011
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Multi-unit System Applications
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POWER SOURCE A
(FREQUENCY/PHASE A)
Transfer of Unit
from One Power
Source to Another
INPUT BREAKER A
POWER SOURCE A
(FREQUENCY/PHASE A)
INPUT BREAKER B
ICCB
MGCB
SSCB
BICB
RUPS
A
LBCB
LOAD A
1.
Unit A initially connected to POWER SOURCE A.
2.
INPUT BREAKER A opens, putting Unit A in UPS mode (ICCB open).
3.
INPUT BREAKER B closes.
4.
Unit A synchronizes to POWER SOURCE B voltage.
5.
ICCB closes. Transfer is complete.
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System Reliability and Availability
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Study Case: The Multi-unit Rotary System of 14 Units (N) plus y=2 distributed Redundant Units for a total
number of Units n = N+y = 16, a 16-Unit Rotary Power System.
The components for Flywheel RTT were combined using appropriate use
factors to a single Unit MTBF (Mean Time Between Failure) of 17.7 years, Notes 1 and 2.
Result:

With a MTTR (Mean Time To Repair) of 8 hours per failure the 16-Unit Rotary Power
System Availability is 0.9997.
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The Utility Grid MTBF is set at 100 hours and this yields Utility Availability of 0.995
assuming a nominal outage time of 30 minutes.
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Combining the Utility Grid and 16-Unit Rotary Power System availabilities yields the 16Unit Continuous Power System Availability of 0.9999987.
Notes:
1. This number is in the same range as other published system level data for a Rotary UPS.
2. Data from the PREP (U.S. Army Center for Public Works Power Reliability Enhancement Program) Database version 4.2.
It is referenced in 'Operational Maintenance Data for Power Generation, Distribution and HVAC Components'
(Hale, Arno and Briggs, IEEE Transactions on Industry Applications, Vol. 35, No. 2, March/April 1999).
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Summary of Product and System Strengths
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1.
High Reliability and Availability, A True UPS Grade Power Source
+ Fewer components and no battery required
2.
Application Versatility to fit wide range of Critical Load Requirements
+ Easy parallelable and multi-unit systems
3.
Low Operating and Maintenance (O&M) Costs
+ High efficiency, 96% +, no A/C system required
+ Near unity power factor, no VAR penalty costs, low TDD
4.
Ease to Install, Long Service Life & High Return Investment
+ Robust and simple construction
+ 20-year service life, low life-cycle costs
+ Estimated ROI: 15 to 40%, Payback: 2 to 5 years.
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Serviceability and Maintenance
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RRT 2200 System Designed for Serviceability
• Bearing changes do not require movement of adjacent equipment
• Couplings and Hubs can be removed and installed without heating
• No Vacuum Pumps for the flywheel allows for simplified topology
• All Bearings are Commercially Available
• The Systems Monitory System will advice of any potential vibration
problems before they become a problem – proactive monitoring
• No special tools required for service
Service and Repair By
• Directly by CM Technology
• National Service Organization
• Local Service Organization
• Customers In House Service Group with minimal training
• Customized Service Contracts Available to the Customers Specific Requirements
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5 Year Critical Spare Parts Kit
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FLEXIBLE COUPLING
FLEXIBLE COUPLING ASSEMBLY, 2.
ROLLER BEARING SPHERICAL,PILLOW BLOCK
TRIPLE RING SEAL S-3 SHAFT,SMALL
TRIPLE RING SEAL S-2 SHAFT,LARGE
STABILIZER RING ROLLER BEARING
LOCKWASHER,ROLLER BEARING
LOCKNUT ROLLER BEARING 2.2MVA
PILLOW BLOCK ASSY SPHERICAL BRG
SHIM PACK, 1/4, GENERATOR, UPS
SHIM PACK, 1/4", FOR BEARINGS,
FLYWHEEL BEARING SEALS
FLYWHEEL BEARING LUBE – SKF
FLYWHELL BEARINGS – SKF
IMG BEARINGS
BEARING GREASE
IMG BEARING SHIM KIT
INVERTER CAPACITOR
INVERTER DRIVER CARD
INVERTER SNUBBER CARD
CURRENT TRANSDUCER
OUTPUT FILTER CAPACITOR
AC INVERTER FUSE
DC CAPACITOR CHARGING FUSE 5A
REC RECTIFIER
2
2
4
4
4
4
4
4
4
8
6
A/R
4
4
A/R
4
2
4
2
2
2
6
2
2
ROTOR DIGITAL CONTROL CARD
ROTOR SCALING CARD
CONTROL FUSE 1A
INVERTER COOLING BLOWER
COOLING BLOWER STARTER CAPACITOR
CONTROL FUSE 10A
PWR SUPPLY +/-15VDC
PWR SUPPLY +15V 1.5A
PWR SUPPLY +/-15V 1.5A
3 PHASE LINE VOLT SENSING MODULE
FUSE TD 1.5A 250VAC
FAN 235CFM 120VAC 31
FUSE TD 10A 250VAC C
PWR SUPPLY 15VDC 3A
PWR SPLY 110/220VAC
PLUG/CORD-CARAVEL FA
FGR GD FOR PATRIOT F
FUSE TD 1.5A 250VAC
FUSE FA 1A 600VAC CL
PWR SUPPLY 120VAC IN
MOV 175VDC 600mW
FUSE FA 1A 600VAC CL
FUSE 2A 250VAC TD CL
PCB W/SOFTWARE (GRID
PCB VCSBP4VI (GRID)
2
2
4
3
3
4
2
4
2
2
4
2
4
2
2
2
2
2
4
2
2
4
2
2
2
Typical Spare Parts Costs 5% of System Cost
June 10, 2011
US-RUPS
a CM Technology Product Line
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Hot Questions & Cool Answers
Thank you for Considering US-RUPS
Rotary Products and System Solutions.
June 10, 2011
US-RUPS
a CM Technology Product Line