Calnetix NEW PowerPoint Template Rail...– Special auxiliary systems • Minimal or no maintenance....
Transcript of Calnetix NEW PowerPoint Template Rail...– Special auxiliary systems • Minimal or no maintenance....
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VYCON
REGEN® for RailFlywheel Energy Storage
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Why Store Energy in Metro Rail?
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Cost of Energy
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1 TWh
1.4 TWh
3.4 TWh
Traction Energy Costs
65-75%
Electricity Costs
15-20%
Metro Op Costs100%
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DC bus regulation energy from regenerative braking
Electricity, Consumption and Losses
Traction Energy Costs
65-75%
Electricity Costs
15-20%
Metro Op Costs100%
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Storable Energy
A portion of 3% is Recoverable
of total Operational
Cost Savings Braking Loss
100%
Traction Loss
Traction Energy
Motors 8%
Resistance 16%
Converters 2%
Transmission 4%
Auxiliary Systems 20%Braking Loss 17%
Regenerative Energy
33%
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Carbon Footprint
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Electricity use contributes nearly 90% of a metro’s carbon footprint
CO2 Emissions of thirty large metros worldwide
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Energy Saved; Lowering CO2 Footprint
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• In 2013/14 regenerative braking was introduced on the London Underground.
• As a result, London Underground was able to serve 3% more passenger km whilst producing 4% less grams of CO2.
Energy Saved = Direct Lowering of CO2 Footprint
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Energy is Here and Now
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• DC to DC regenerated energy is more efficient• Enables peak shaving and voltage regulations• Delinks savings from scheduled synchronization• Minimal interference with the rail network
Storage is Central to Supply and Demand Inequalities
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Storage – Why and Where?
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Where?Onboard Wayside
Lower transmission loss Can stabilize local substation
Useable only locally in train Can transfer between trains
Higher energy capacity required for similar savings
Lower energy capacity required for similar savings
Diminishing returns with weight Less constrained in size and space and weight
Space-constrained
Higher installation and operational cost
Lower costs overall
Allows catenary-free operation
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Energy Storage Technologies
Batteries• Longer cycle time• High energy
density• Lower life• Long Term Storage• Grid Stabilization
Flywheels• High energy density• Very long life (virtually
unlimited cycle life)• High Conversion Efficiency• High Energy Cycling• Mission Critical Power Bridge
ELDC (Supercapacitors)• Shorter Cycle times• Limited life in cycles• Stringent temperature
constraints• Ultra Fast Discharge• Portable Application
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What’s the Right Technology?
• Cycle every 75 – 90 seconds• Easy installation• Modular units• No need for
– Climate control– Cell management– Special auxiliary systems
• Minimal or no maintenance
Optimized Technology in One Package for Metro Rail> Energy density > Power density > Cycle life
Attributes
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Energy Storage Decision Criterion
• Efficiency
• Reliability
• Life
Payback Economics} =
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REGEN® for RAIL
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Energy Storage Systems
Stores and recycles energy to reduce peak loads or even out demand sags and surges
Energy Recycling
REGEN® for Rail
• 125kW of continuous cycling capability
• 10,000 to 20,000 RPM• 750VDC and 1500VDC • 18 secs charge/ discharge of full
energy• Unlimited cycling to full power
(charge-discharge) every 75 - 90 seconds
• Payback of 4 to 6 years in Rail applications
• Long +20 year life
REGEN®
LA Metro WESS Project
REGEN® for Rail
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Flywheel Energy Storage
To 3rd Rail DC Bus
Flywheel withMagnetic LevitationController
Soft Start
Power Conversion Module & Controller
User GUI
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Next Generation Flywheel Design
• “Mechanical battery” – stores energy by spinning a mass, produces high power output for short duration (10-30 seconds)
• Dual Mode Motor / Generator –converts kinetic energy into electricity when needed, quickly charges (converts electricity into kinetic energy) to be ready for next event
• Five-axis active magnetic levitation – eliminates any bearing maintenance, no fiction losses.
• Efficient – high speed permanent magnet motor/generator in a low friction environment
• Key Benefit – 20 year operating life with no flywheel maintenance
RotorPermanent Magnet
StatorDual Mode Motor/Generator
Hub4340 Aerospace steel
Magnetic BearingsFully active 5-Axis
HousingVacuum environment
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Basic Operational Sequence
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DC
Sw
itchG
ear
METRO
Utility Power480VAC, 3Ф
FWU1
DCAC
DCAC
DCAC
DCAC
FWU2 FWU3 FWU4
4line Display
4line Display
4line Display
4line Display
VYCON RR500
WESSRealTimeController
Rectifier 01
Rectifier 02
Modbus
Status &Control
I Line V Line
I Line
V Line
Rail DC Bus
FWM2
FWM1
FWM3
FWM4
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Basic Operational Sequence
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DC
Sw
itchG
ear
METRO
Utility Power480VAC, 3Ф
FWU1
DCAC
DCAC
DCAC
DCAC
FWU2 FWU3 FWU4
4line Display
4line Display
4line Display
4line Display
VYCON RR500
WESSRealTimeController
Rectifier 01
Rectifier 02
Modbus
Status &Control
I Line V Line
I Line
V Line
Rail DC Bus
FWM2
FWM1
FWM3
FWM4
START CMD
Start Up Ready Charging Fully Charged Discharge Ready
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LA Metro Energy Storage(WESS Project)
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• US DoT, LA Metro, VYCON teamed up to apply a state-of-the-art WESS
• Scope: 2MW / 8.2 kWh REGEN® for Rail System at Traction Power Substation
– Ready for expansion to 6MW/24.6 kWh capacity
• Benefits:– Save Energy– Reduce peak power demand – Provide voltage support – Substitute for substations in a new or
expanded line
• Operating continually since 2014– Continuously monitored for data
analysis and operational optimization for 3 years
– Controls capable of switching modes based on maximum benefit to Metro (energy savings vs peak power vs voltage stabilization)
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Traction Energy Saved
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• Every 24 hours, WESS saves an average of 1.6 MWh or 14.2% • Maximum Energy Saved: 31%
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Ener
gy Sa
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Ener
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by W
ESS (
MW
h)
Day
Energy Saved by WESS % Energy Saved
LA Metro Westlake WESS Energy Saved
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LA Metro Savings
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Everyday the REGEN® for Rail system at LA Metro saves an average of 1.6-1.8 MWh energy while providing:• No maintenance• No energy degradation • Minimal size and weight compared to
batteries or super caps• Over 20 years of life• No need for temperature regulation• No health risks due to chemical leaks• Minimal cost /kw compared to other
storage devices• Easy to add or remove modules due
to changing schedules• Real-time monitoring
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VYCON Energy Storage
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• Established in field since 2003• Subsidiary of Calnetix Technologies; largest
flywheel manufacturer in the world• Over 1,200 units operating• Mission Critical Markets
– UPS– Emergency services (Medical)– Defense
• Cyclic Energy Saving – Ports– Industrial– Rail
• Worldwide Certified OEM partners
Venky KrishnanDirector, Business Development& Special Programs [email protected]
Visit us at Booth #E09
Thank You