4. specs specs introduction & ess rdd

1. Dr.
L.H.
Koh,
Programme
Director
/
Senior
Scientist,
SPECS
Contributors:
Mr.
Nyunt
Wai,
Prof
Y.
Tang,
Dr.
L.M.
Koh,
Dr.
O.L.
Ding
specs@ntu.edu.sg
|
www.specs.com.sg
|
T:
+65-6592-3543
SPECS
Introduction
&
ESS
RDD
19
May
2021
0900-1100hour
session
SBC-UL
Mini-Master
Series
(in
conjunction
with
SPECS)
ESS
RDD

2. 2
Intermittency
Challenge
•
Target
of
1.5GWp
by
2025
and
at
least
2GWp
of
solar
deployed
by
2030
Solar
Target
•
A
smart
system
is
pivotal
to
optimize,
manage
and
control
the
energy
assets
in
real
time.
Intelligent
system
•
DER
technologies
and
microgrids
offer
opportunities
for
increased
energy
efficiency.
Decentralization
Solar
photovoltaics
&
Energy
storage
Distributed
Energy
Generation
(DER)
The
Singapore
Trend
V2G
Service
•
Alternative
solutions
to
support
the
grid
system,
such
as
Virtual
Power
Plants
offers
scalability
and
flexibility.
Scalable
Solutions
•
Only
hybrid
vehicles
and
EVs
on
the
roads
by
2040.
60,000
EV
charging
points
by
2030
with
40,000
in
public
car
parks
V2G
Service
•
Energy
storage
will
play
a
crucial
role
in
tackling
the
intermittent
generation
of
renewables.
Energy
Market
Authority
is
targeting
200MW
of
energy
storage
systems
beyond
2025.
Singapore
is
committed
to
fulfil
its
pledge
to
reduce
Emission
Intensity
(EI)
by
36%
from
2005
levels
by
2030
through
adoption
of
more
efficient
power
generation
technologies,
increased
deployment
of
solar
photovoltaic
systems
and
deployment
of
low
carbon
technologies
such
as
electric
vehicles.

3. 3
4.
Conclusion
3.
Distributed
Energy
Storage
System
for
Power
System
Security
&
Stability
2.
VRFB
Research,
Development
&
Deployment
1.
Smart
Grid
&
Power
Electronics
Consortium
Singapore
(SPECS)
Introduction
Overview

4. 4
Smart
grid
and
Power
Electronics
Consortium
Singapore
(SPECS)

5. 5
SmartMesh
YIJIN
TECH
Affiliation
Membership
IHL
/
RI
*
LLE
/
MNC
/
SME
/
Start-up
*
Associate
*

6. 6
From
laboratory
prototype
IP
&
know-how
transfer
to
manufacturing
2
VRFB
Research,
Development
&
Deployment

7. 7
Approval:
SCDF,
NEA,
JTC
Fitted
with
leakage
sensors,
alarm
and
control,
double-walled
electrolyte
tank,
outer
tank
functioning
as
a
collection
tray
Tertiary
containment
-
spillage
control
to
the
ground
2-hour
fire
rated
partition
installed
between
the
battery
and
generator
10kW-100kWH
VRFB
Deployed
Lab
POC
VRFB
ESS
Benefits
VRFB
Research,
Development
&
Deployment
No
degradation
Safe
to
use
100%
Recyclable
25-year
Life
100%
DOD
Long
hour
2.5kW-10kWh
VRFB
1kW-1kWh
VRFB

8. 8
Ready
to
manufacturing
100kW
/
500kWH
or
high
power
&
energy
modules
IP
&
Know-how
Transferred
for
Commercialization
Projects
Demonstration
of
microgrid
&
electrification
use
cases
with
10kW
/
100kWH
VRFB
CleanTech
One
Grid
Research,
Development
&
Deployment
Unlock
Research
IP
&
Know-how
to
Commercialization

9. 9
A
study
of
DESSs
installed
close
to
rooftop
solar
PV
in
highly
urbanized
environment
3
Distributed
Energy
Storage
System
(DESS)
for
Power
System
Security
&
Stability

10. Power
system
stability
is
better
with
UESS
or
DESS
strategy?
1.
Distributed
ESSs
(DESSs)
at
precincts
–
Low
voltage
(LV)
2.
Utility
ESSs
(UESSs)
at
medium
voltage
(MV)
substations
Managing
solar
intermittency
by
aggregation
of
Distributed
Energy
Storage
Systems
(DESSs)
Utility
ESS
(UESS)
MWH
Scale

11. 11
Intermittency
management,
frequency
regulation
and
enhance
value
of
DESS
DESS
Approach
and
Methodology
Installation
in
highly
urbanized
living
environment
AC
Distribution
Board
&
ESS
Cabinets
Installed
with
Fire
Safety
Certificate
DESSs
Deployed
in
Precincts

12. Frequency
Regulation
1.
Inertia
response
(IR):
energy
stored
in
rotor
of
synchronous
generators.
2.
Primary
frequency
regulation
(PER):
speed
droop
control
of
generator
governors.
3.
Secondary
frequency
regulation
(SFR)
or
automatic
generation
control
(AGC):
integral
controller
of
AGC
units.
4.
DESS
can
participate
in
all
these
three
stage
of
frequency
regulation.
System
frequency
response
under
a
large
system
disturbance
12

13. DESS
Control
Algorithms
–
Structure:
Server
+
Client
Controllers
–
Functions:
Intermittency
Management,
Frequency
Regulation,
and
SoC
Control
13
Client
Controller
Server
Command
Stage-of-Charge
(SoC)
Measured
PV
Power
PV
Power
Grid
Frequency
Command
Batt
Power
To
Grid
HDB
Block
HDB
Block
HDB
Block
SoC
Error
Frequency
Error
Command
(
SoC
50%
)
(
f
50
Hz
)
Dead
zone
High
Pass
Gain
Gain
Gain
Selector
Saturator
Client
Controller
Server
Command
-1
Measured
PV
Power
High
Pass
Gain
Measured
PV
Power
Measured
PV
Power
Server
Command
PV
Sites
Client
Controllers

14. Frequency
Regulation
14
Frequency
Regulation
Effect
–
Scenario
1:
600
MW
PV
without
DESS
Sunday
Sep
24
Monday
Sep
25
Tuesday
Sep
26
Wednesday
Sep
27
Thursday
Sep
28
Friday
Sep
29
Saturday
Sep
30
Maximum
deviation:
0.275
Hz
Average
deviation:
0.0059
Hz
Frequency
Regulation
Effect
–
Scenario
2:
900
MW
PV
without
DESS
Sunday
Sep
24
Monday
Sep
25
Tuesday
Sep
26
Wednesday
Sep
27
Thursday
Sep
28
Friday
Sep
29
Saturday
Sep
30
Maximum
deviation:
0.405
Hz
Average
deviation:
0.0089
Hz
Frequency
Regulation
Effect
–
Scenario
3:
900
MW
PV
with
150
MWh
(1C)
DESS
Sunday
Sep
24
Monday
Sep
25
Tuesday
Sep
26
Wednesday
Sep
27
Thursday
Sep
28
Friday
Sep
29
Saturday
Sep
30
Maximum
deviation:
0.159
Hz
Average
deviation:
0.0069
Hz
Frequency
Regulation
Effect
–
Scenario
4:
900
MW
PV
with
30
MWh
(5C)
DESS
Sunday
Sep
24
Monday
Sep
25
Tuesday
Sep
26
Wednesday
Sep
27
Thursday
Sep
28
Friday
Sep
29
Saturday
Sep
30
Maximum
deviation:
0.164
Hz
Average
deviation:
0.0070
Hz

15. 15
0.293
1.047
0.019
0.021
0.009
0.127
0
0
Frequency
Regulation
Effect
–
900
MW
PV
+
30
MWh
(5C)
DESS
gives
better
frequency
performance
than
600
MW
PV,
indicating
50%
increment
in
IGT.
–
.
Frequency
Regulation

16. DESS
Benefits
16
Reduction
of
DESS
CAPEX
and
OPEX
–
DESS
is
more
effective
in
maintaining
distribution
network
voltage
than
Utility
ESS
even
with
75%
reduction
in
capacity.
Category
Power
Rating
Capacity
Rating
PV
1.1
MWp
each
N.A.
DESS
0.5
C
(0.5
MW)
5
x
1
MWh
UESS
0.5
C
(2.5
MW)
1
x
5
MWh

17. Enhanced
Value
of
DESS
17
Increasing
the
Value
of
DESS
Gain
from
Ancillary
Services
by
20%
–
By
shifting
the
basepoint
of
battery
SoC,
DESS
can
participate
in
contingency
reserve
in
addition
to
providing
frequency
regulation
and
PV
intermittency
management.
IP
&
know-how
transferred
to
companies
for
commercialization
projects!

18. DESS
is
effective
in
Intermittency
Management,
Frequency
Regulation
&
SoC
Control
VRFB
is
reliable
and
highly
scalable
in
power
&
energy
SPECS
is
a
networking
platform
to
propel
companies
in
smart
grid
and
power
electronics
domain
–
unity
is
strength!
www.specs.com.sg
4
Conclusion
Strengthened
companies’
business
viability
through
innovative
IP
&
know-
how
transfer

19. SPECS
&
Standards
Development
Organisation
(SDO)
Translational
Research
Forward
sensing:
Identify
new
standards
through
research,
development,
demonstration,
and
deployment
(RDDD)
projects
eg.
shore
based
power
Singapore
Standards
Commercialization

20. Dr.
L.H.
Koh
Senior
Scientist/Programme
Director,
SPECS
specs@ntu.edu.sg
|
www.specs.com.sg
T:
+65-6592-3543
Thank
You!
Join
Us…