ultrabattery utility-scale solutions
TRANSCRIPT
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UltraBattery Utility-Scale Solutions
Peter Coppin
SKA Workshop April 2011
Energy Transformed Flagship
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Overview
• Grid-connected Storage
• Technology overview
• The UltraBattery
• Ultrabattery utility-scale trials
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Drivers for storage applications
The example of wind power variability
Power spectrum shows clear
separation between sub-1-hour
and longer time-scale variations in
wind speed
Each scale has different problems
and storage solutions
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Five Categories of Grid-Related Energy
Storage Applications (Sandia Report 2010-0815)
Category 1 — Electric Supply
1. Electric Energy Time-shift
2. Electric Supply Capacity
Category 2 — Ancillary Services
3. Load Following
4. Area Regulation
5. Electric Supply Reserve Capacity
6. Voltage Support
Category 3 — Grid System
7. Transmission Support
8. Transmission Congestion Relief
9. Transmission & Distribution (T&D) Upgrade Deferral
10. Substation On-site Power
Category 4 — End User/Utility Customer
11. Time-of-use (TOU) Energy Cost Management
12. Demand Charge Management
13. Electric Service Reliability
14. Electric Service Power Quality
Category 5 — Renewables Integration
15. Renewables Energy Time-shift
16. Renewables Capacity Firming
17. Wind Generation Grid Integration
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Application-specific 10-year benefit andmaximum market potential estimates for the U.S
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The Technolgies
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Custom Built Pumped Hydro
Taum Sauk – Missouri - 450MW
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Compressed Air Storage
Huntdorf, Germany (290 MW) & McIntosh, Alabama. (110 MW)
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NaS and Lithium-Ion - Shorter Time-scales
NGK 1.2MW/ 7.2 MWhr
substation (upgrade deferral) system
(6 hrs storage)
A123
2MW/ 0.5 MWhr
Multi-purpose system
(15 min storage)
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Vanadium Redox Flow Battery
King Island Tasmania – Renewable Energy Integration
VRB Power Systems
200kW/ 800 kWhr
(4 hrs storage)
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Flywheel - Regulation Services
New York State
Beacon Power
20MW / 5MWhr
(15 min storage)
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UltraBattery (modified Lead-Acid)
Regulation Services - Pennsylvania
East Penn Manufacturing Co.
3.6MW / 3MWhr - East Penn UltraBatteries
(1 hour storage)
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Ecoult / East Penn UltraBattery Renewable
Storage Concept
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The UltraBattery
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UltraBattery – a modified Valve Regulated Lead
Acid (VRLA) Battery
• UltraBattery characteristics
• Solves problem of reduced life under high discharge conditions
• originally designed for hybrid car applications
• higher current capability
• extended cycle lifetime
• low string-voltage drift
• standard production techniques
Highly successful 100,000mile trial in
Honda Insight (no string balancing
required)
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PbO2 Pb
+ – Separator
Lead–acid cell
+ –
Carbonelectrode
PbO2
Asymmetric supercapacitor
+ –
Ultrabattery
Pb
Carbon electrode
i
i
i1
i2
Principle of the UltraBattery
• Ultrabattery is a hybrid energy-storage device, which combines an asymmetric
capacitor and a lead-acid battery in one unit cell, without extra electronic control
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UltraBattery applications
• New classes of applications for
VRLA batteries
• Build on high current capability
• renewable energy smoothing of fluctuations <~60mins
• Regulation services (phase and voltage compensation)
• Manufacturing through Furukawa in Japan and East-Penn in USA
• Available in production quantities
• Applications through Ecoult division of
East-Penn (ecoult.com)
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Sandia Labs Ultrabattery Cell Testing under
Regulation Services Profile (December 2008)
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Sandia Labs Ultrabattery String Testing under
PV-Hybrid Test Profile (November 2010)
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Large-scale UltraBattery Systems
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Hampton Wind ParkNew South WalesAustralia
2 Vestas V47-660kW turbines
Storage Systems:
Module 1 – Custom builtModule 2 – Modular building block
Demonstration Strategy - Grid Connected Wind Farm
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Wind-storage example schematic
Inverter/chargerBattery management
Wind Forecasting
Ultrabatterymodules
Wind farm
Slow storage
options
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Module I – prototype test system
Phase - Red
Phase - White
Phase - Blue
UltraBattery Yuasa East Penn
Unigy
240kWhr
4 banks x
60kWhr *
Vestas V47 660kW turbine
690V – 3 phaseTo 11kV step-up
transformer
Exide
144kW
Single-phase
inverters
4 x 36 kW systems
* 50% Depth of Discharge (DoD)
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Hampton Module 1 Control Systems
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Furukawa manufactured UltraBatteries
Hampton Module 1 Battery systems
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Deka (East-Penn) unigy II batteries
Hampton Module 1 Battery systems
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Renewable Energy Smoothing – wind farm
example 26th December 2010 – simple filtering
Scaled wind turbine output – 165kW during initial trials
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kW
per 5
min
Storage effect on power ramp rate
Scaled wind turbine output – 165kW during initial trials
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Module 2 –1MW production system
Phase - Red
Phase - White
Phase - Blue
East Penn
UltraBatteries
320 high capacity cells
yields1 x 500Whr bank*
Vestas V47 660kW turbine
690V – 3 phaseTo 11kV step-up
transformer
1 x 1MWhr
(capped 660kW)
3-phase inverter
* 50% Depth of Discharge (DoD)
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Hampton Site – module locations
Module 1
Module 2
•Trial of production system
•Modular platform
•1MW PCS building block
•Containerized Battery System
•500kWhr storage module
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Offline
Machine Learning
Fitting Engine
(compute intensive)
Controller
Algorithm
Machine Learning
Execution Engine
(fast)
Source and Storage
System State
History
Objectives
Costs
Electrical limits
Physical constraints
Continuously
Variable
Controller
Coefficients
Real Time
Parameters
Adaptive Controller Design
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Ecoult Grid Regulation Services Trial
System located at East Penn Campus, Pennsylvania:
• US DOE funding – Energy Storage Demonstrations
• Regulation services for PJM (Regional Transmission Organization)
• 3.6MW and 3MWhr* - 1920 East Penn UltraBatteries
• Install though 2011
*(50% Depth of Discharge)
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Ecoult / East Penn 3.6MW Energy Store
UltraBattery Site
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PV UltraBattery systems
• Public Service Corporation of New Mexico (PNM) “Prosperity PV storage project” - PV plus battery for simultaneous voltage smoothing and peak shifting
• DOE funding
• 500kW PV
• 500kW / 500kWhr smoothing system
• 250kW / 1000kWhr shifting system
• Australian Government “Solar Flagships”
• ~150MW PV + 150MW CST – construction from 2012
• Compulsory Education Infrastructure requirement
• Proposed solar monitoring, forecasting and storage components
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150MW PV arrayHV substn connection
Isolator and protection33kV feeder segment
Sensing from Sensing from
solar arraysolar array
3MWhrStorage
UltraBattery
3MW3MW
33kV step33kV step--up up
TxfmrTxfmr
3MWhrStorage
(other)
3MW3MW
33kV step33kV step--up up
TxfmrTxfmr
750kWhrStorage
UltraBattery
125kW125kW
33kV step33kV step--up up
TxfmrTxfmr
750kWhrStorage
UltraBattery
125kW125kW
Inverter/charge
r
Isolator &protectio
n
Isolator &protectio
n
Isolator &protectio
n
Isolator &protectio
n
Inverter/charge
r
Inverter/charge
r
Inverter/charge
r
Sensing from Sensing from
solar arraysolar arraySensing from Sensing from
solar arraysolar array
125kW PV
(switched from main array)
Solar Flagships PV Storage System Layout
33kV step33kV step--up up
TxfmrTxfmr
1 Hour Storage1 Hour Storage 1 Hour Storage1 Hour Storage 5 Hour Storage5 Hour Storage
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150MW PV arrayHV substn connection
Isolator and protection33kV feeder segment
Sensing from Sensing from
solar arraysolar array
3MWhrStorage
UltraBattery
3MW3MW
33kV step33kV step--up up
TxfmrTxfmr
3MWhrStorage
(other)
3MW3MW
33kV step33kV step--up up
TxfmrTxfmr
750kWhrStorage
UltraBattery
125kW125kW
33kV step33kV step--up up
TxfmrTxfmr
750kWhrStorage
UltraBattery
125kW125kW
Inverter/charge
r
Isolator &protectio
n
Isolator &protectio
n
Isolator &protectio
n
Isolator &protectio
n
Inverter/charge
r
Inverter/charge
r
Inverter/charge
r
Sensing from Sensing from
solar arraysolar arraySensing from Sensing from
solar arraysolar array
125kW PV
(switched from main array)
Solar Flagships PV Storage System Layout
33kV step33kV step--up up
TxfmrTxfmr
1 Hour Storage1 Hour Storage 1 Hour Storage1 Hour Storage 5 Hour Storage5 Hour Storage
DC-Side Trial
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Thank you
Energy Transformed FlagshipPeter Coppin
Storage for Renewables
Phone: +61 2 6246 5576
Email: [email protected]
Web: www.energytransformed.csiro.au
Contact Us
Phone: 1300 363 400 or +61 3 9545 2176
Email: [email protected] Web: www.csiro.au