Case Study: Wind Smoothing
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PbPbO2
Lead-Acid Cell
+ -Separator
PbO2CarbonElectrode
Ultracapacitor
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i i1i2+ -
UltraBattery® Technology
Market Size:
$3.5B
MotiveBattery
Market Size:
$6B
StandbyBattery
New Lead-Acid Market
PSOC UltraBattery
Market Size:
$15B
StarterBattery
State of Charge
1881
0%
100%80%
20%
1960 1980 Today
The New Dimension in a Lead Acid World
State of Charge
The New Dimension in a Lead Acid World
High Efficiency in Partial State of Charge Use
UltraBattery®: highly efficient & high longevity
Lower Efficiency & higher rate of degradation
Lower Efficiency and higher rate of degradation.
20%
80%
93% – 95% DC to DC
100%
0%
Wind Smoothing
* The project is supported by the Australian Department of Resources, Energy and Tourism as well as the NSW Department of Energy and Climate Change
Power Smoothing –Containerized VRLA UltraBattery Cells (2 x CUBS)
1MW DC Converter with Power Regulator
1MWGrid-Tied Inverter
BESS
MasterControlle
r
BES SYSTEM SUPPLIED BY EPM/ECOULT
660 kW WIND TURBINE
11 kV
Of Hampton Wind Farm Energy Storage System
Of Wind Output and Ramp Rate Reduction
22/03/2011 7:12 22/03/2011 7:19 22/03/2011 7:26 22/03/2011 7:33 22/03/2011 7:40 22/03/2011 7:48 22/03/2011 7:55 22/03/2011 8:02
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/5m
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SO
C (
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22/03/2011 7:12 22/03/2011 7:26 22/03/2011 7:40 22/03/2011 7:55 22/03/2011 8:09
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Output
RampRate
Storage
kW
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kW
/5m
in
SO
C (
%)
Anticipates wind rise – lowers SOC
Reduces 5 min ramp rate
Reduces HF noise in output
Standard fixed parameter PI algorithm
Adaptive PI algorithm
Optimised against ramp rate onlyVery short term forecasting
Advanced Algorithm Results
Ecoult &
Flexible Storage Solutions
Recycling Safe
Globally SuccessfulAustralian Technology
The Energy Storage Solution of Choice
Case Study: Wind Smoothing
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