Large-scale Photovoltaic Power Generation Systems

Transcription

Large-scale Photovoltaic
Power Generation Systems
01D1-E-0001
Our photovoltaic power generation systems provide eco-friendly energy.
■ Maximizing Output Power from
Photovoltaic Power Generation
High-efficiency three-level inverter with our original
RB-IGBT
At Fuji Electric we develop and manufacture high-efficiency power
conditioner systems (PCS) in-company using our unique
proprietary reverse-blocking insulated gate bipolar transistor
(RB-IGBT) technology. Our power conditioners, which are at the
industry’s highest level and use the maximum power point
tracking control (MPPT) that we have refined through long
development, enable maximum output power from photovoltaic
power generation.
1
■ Total System Construction from
PCS to System Interconnection
Fuji Electric offers a wide product lineup from high-voltage
and extra-high-voltage interconnection facilities that we have
developed as a heavy electrical equipment manufacturer to
supply-and-demand monitoring and PCS units. We support
total system introduction of photovoltaic power generation
facilities for our customers.
■ System Stabilization Technology
Power stabilizers, private power generators, and
hybrid power supplies such as wind power
generation and fuel cells
Fuji Electric has developed its system stabilization technology for
more than 20 years.
We make use of various types of power supply equipment such as
private power generators and wind power generators and power
accumulation technology developed for UPS to supply stable
power by combining power supply types tailored to each region.
■ Secure Support System in Japan
and Abroad
Our service engineers provide secure maintenance support for
customer facilities from Hokkaido to Okinawa in Japan and at
international service locations.
2
Total Engineering Solutions from System
Planning to Maintenance
Fuji Electric is a full-service equipment manufacturer, a peripheral equipment supplier, and a total
engineering solution provider of photovoltaic power generation systems from system design to
construction management.
Fuji Electric provides comprehensive system
proposals for efficient operation from solar cells
to power transmission.
■ One-line Diagram
■ Fuji Electric System Solutions
Fuji Electric provides photovoltaic power generation systems
optimized for each region by combining our in-depth experience
and advanced technologies.
PCS
● High efficiency
(98.5% for DC 1,000 V specifications) (Power conditioner system)
● Series expanded to DC 600 V
specifications
● Substation configuration for easy
construction*
●
Long history of accomplishments and experience since
foundation in 1923 (Solar cell characteristics, inverter
technology, and system interconnection technology)
● Advanced technologies (RB-IGBT and system
interconnection technology)
Transformation system
● System interconnection technology
● Smart grid monitoring technology
● Large-scale plant technology
Interconnection with
transmission line of
electric power utility
company
PV panel
PCS
Connection
box,
current
collection
box
PV panel
Main transformer
GIS
VCT
Extra-high-voltage facility
(22 to 154 kV)
High-voltage
facility
(6.6 kV)
*: Integrated configuration includes power conditioner
system (PCS), switchgear, and step-up transformer.
● System-matched Modules
PCS
Connection
box,
current
collection
box
● Overseas and Japanese
power generation operators
(public and private sector)
PV module
Sales and after-sales service
PCS
PCS
Power conditioner
Key technology
PCS
PCS
PCS
PCS
Other principal components
Total system design
(Electric equipment, system interconnection, stabilizer, IT, etc.)
Total engineering
(Installation, construction, quality assurance, after-sales service, etc.)
3
4
As the PCS is the core of the system, we provide
a large-capacity PCS of the highest efficiency that
incorporates advanced power semiconductors.
(The series lineup was reinforced with the addition of a new 500 kW model.)
■ Features
Adoption of new IGBT and new circuit system
Fuji Electric commercialized the world’s first three-level module
in which a new RB-IGBT* and an existing IGBT are integrated in
one package.
Application of this new module to a new three-level conversion
circuit enables a large reduction both in power loss and in the
number of parts, resulting in high efficiency and low noise in the
equipment.
＊: RB-IGBT: Reverse Blocking-Insulated Gate-Bipolar Transistor
World’
s highest efficiency 98.5%
(DC 1,000 V product)
Single unit capacity 1,000 kW
Compared to existing products, our new power conversion
technology, which uses a new three-level conversion circuit in
the new module, reduces switching loss in the IGBT device and
also reduces filter loss by reducing to one half the harmonic
content in PWM waveform outputted by the inverter. This results
in the world highest efficiency of 98.5% (DC 1,000 V product).
We have also achieved EURO efficiency of 98.2% (DC 1,000 V
product).
New IGBT module
Fuji Electric successfully developed a PCS with a single unit
capacity of 1,000 kW.
For large-scale photovoltaic power generation systems, this
large single unit capacity enables the number of PCS units to
be optimized, resulting in significant reductions in construction
and building costs.
INV1
99
1000 kVA
LB
INV2
98
Efficiency [%]
97
96
95
94
INV3
93
92
91
90
89
0
20
40
60
80
100
INV4
Output [%]
New IGBT module
New three-level conversion circuit
Outdoor substation type
Output line voltage waveform
Existing system
(two-level system)
Output line voltage waveform
New system
(new three-level system)
Reduction of power loss
Standard FRT function
The fault ride through (FRT) function that is becoming
essential in PCS for large-scale photovoltaic power
generation is provided as a standard function.
Even if a three-phase or two-phase short circuit accident
occurs in the system, the inverter can output three-phase
current in a specified range to suppress power supply
variations in the system.
AC voltage
U-V phase (red)
V-W phase (green)
200 V/DIV
AC current
U phase (red)
80
Loss[%]
Fuji Electric provides a substation type of PCS that can be
installed outdoors.
A switchgear, a step-up transformer, and PCS that can be
installed outdoors are integrated on a common base in a single
unit. This eliminates the need for a building for storing panels
and air-conditioning facilities. Since this substation is
transported to the site as an integrated unit, on-site construction
costs can be greatly reduced.
With the installation of an optional fuse for a DC branch in the
PCS, the panel output collected in the current collection box can
be connected to the PCS as is.
W-U phase (blue)
ACL and wiring loss
Switching loss
100
Note: Internal power supply is not included. IEC61683 efficiency tolerance is indicated.
V phase (green)
60
W phase (blue)
25 A/DIV
40
20
0
5
Existing system
(two-level system)
New system
(new three-level system)
3.6ｓ
3.62ｓ
3.64ｓ
3.66ｓ
4.6ｓ
4.62ｓ
4.64ｓ
6
Example of outside dimensions
Step-up transformer
LBS panel
(Front view)
PCS
PCS
DC main circuit
cable and ground wire
■ PCS (DC 1000 V) specifications (Outdoor self-standing type)
Item
Electric specifications
(DC input)
(AC output)
System interconnection
Series name
Rated output
Insulation system
DC input voltage range
DC input voltage (MPPT range)
Number of DC input branches
Rated output capacity
Rated output voltage
Rated frequency
Number of output phases
Rated output current
Output power factor
Output current distortion factor (total)
Output current distortion factor (each)
Equipment highest efficiency
Equipment efficiency (Euro efficiency)
Overload capacity
Noise
System protection
Individual operation detection system (passive)
Individual operation detection system (active)
Voltage rise suppression function
FRT
Installation system
Applicable IP
System type
Cable lead-in
Cooling system
Dimensions
PCS single unit (W × D × H)
Substation (W × D × H)
Mass
PCS single unit
Substation
Environmental conditions Storage temperature
Operating temperature
Relative humidity
Altitude
Relevant standard
Communication system
Panel structure
PVI1000-3/1000
Remarks
1000 kW
Transformerless system
1000 V
460 V to 950 V
4
24 branches (Option)
1000 kW
270 V ｰ10 ％ to ＋12 ％
50/60 Hz ±5 ％
Three-phase, three-wire; isolated neutral system supported.
2138 A
>0.99(at rated output)
Individual operation Q output excluded
(when output is 1/8 of rated output).
<5 % (at rated output)
98.5 %
98.2 %
100 % continuous
85 dB
OV, UV, OF, UF
Detection of voltage phase jump
Reactive power variation system
Reactive current compensation,
active current output suppression
Vmin=15 ％，0.625 S Recovery time 3 s Based on the country’s grid code.
Outdoor self-standing type
Measures against salt damage are optional.
IP54
Integrated step-up transformer and switchgear
Substation system
Lower part
Forced-air cooling
3600×2130×2830 mm
6150×2400×2830 mm
About 7000 kg
About 12500 kg
−20 ℃ to +50 ℃
High-temperature option available for +50 °C.
−10 ℃ to +40 ℃
Non-condensing
15 to 95 ％
High-altitude option available for over 2000 m.
2000 m or less
IEC62109-1
RS-485/MOD BUS/TCP
■ Switchgear and step-up transformer (1000 kW) specifications
Item
Rated output
Electric specifications of Power supply voltage
switchgear
Power supply frequency
Number of power supply phases
Rated current
Breaking capacity
Electric specifications of Capacity
step-up transformer
Number of phases
Frequency
Cooling system
Connection system
Others
7
1000 kW
4.16 to 34.5 kV
50/60 Hz
Three-phase, three-wire
200 A
12.5 kA
1000 kVA
Three-phase
50/60 Hz
Oil-immersed self-cooling
ー
Contact prevention plate is provided.
Remarks
Base (1)
High-voltage main circuit
Cable and ground wire
1000
150
800
Concrete foundation
Step-up transformer
LBS panel
(Top view)
1000
800
1200
2400
Operation screen
2130
Example of appearance
2830
Specifications
1200
2550
3600
6150
(Unit: mm)
■ PCS (DC 750 V) specifications (Outdoor self-standing type)
Item
(DC input)
(AC output)
Series name
Rated output
Insulation system
DC input voltage range
Rated output capacity
Rated frequency
Output power factor
Overload capacity
Noise
System interconnection System protection
FRT
Panel structure
Dimensions
Mass
Environmental
conditions
Installation system
Applicable IP
System type
Cable lead-in
Cooling system
PCS single unit
Substation
Storage temperature
Relative humidity
Altitude
Relevant standard
PVI750ｰ3/750
Remarks
750kW
750 V
320 V to 750 V
4
16 branches (Option)
750 kW
200 V ｰ10 ％ to ＋12 ％
50/60 Hz ±5 ％
2165 A
>0.99(at rated output)
(when output is 1/8 of rated output).
97.8 %
97.4 %
100 % continuous
85 dB
OV, UV, OF, UF
Reactive current compensation,
active current output suppression
JEAC9701ｰ2010
Based on the country’s grid code
(conforms to supplementary version of 2011)
Measures against salt damage are optional.
IP54
Substation system
Integrated step-up transformer and switchgear.
Lower part
Forced-air cooling
3600×2130×2830 mm
6150×2400×2830 mm
About 7000 kg
About12500 kg
−20 ℃ to +50 ℃
−10 ℃ to +40 ℃
High-temperature option available for +50 °C.
15 to 95 ％
Non-condensing
2000 m or less
JIS, JEM, JEC
RSｰ485/MOD BUS/TCP
■ Switchgear and step-up transformer (750kW) specifications
Item
of switchgear
Values other than the left value are optional.
of step-up transformer
Rated output
Power supply voltage
Rated current
Breaking capacity
Capacity
Number of phases
Frequency
Cooling system
Connection system
Others
750 kW
6.6 kV
50/60 Hz
200 A
12.5 kA
750 kVA
Three-phase
50/60 Hz
ー
Remarks
8
System Configuration Example
PCS optional
New
Series !
■ One-line diagram (10MW, Outdoor self-standing type, Example of a 1,000 kW PCS)
■ PCS (DC 750 V) specifications (Indoor self-standing type)
Item
Series name
Rated output
Insulation system
Electric specifications DC input voltage range
(DC input)
Electric specifications Rated output capacity
(AC output)
Rated frequency
Output power factor
Overload capacity
Noise
System
System protection
interconnection
FRT
Installation system
Panel structure
Applicable IP
System type
Cable lead-in
Cooling system
Dimensions
Mass
PCS single unit
Substation
Environmental
Storage temperature
conditions
Relative humidity
Altitude
Relevant standard
PVI750ｰ3/500
500kW
750V
320V to 700V
5
500kW
200V ｰ10％ to +12％
50/60Hz
1444A
>0.99 (at rated output)
<5% (at rated output)
<3% (at rated output)
97.7%
97.3%
100% continuous
75dB or less
OV, UV, OF, UF
Reactive current compensation, active current output suppression
Vmin=15%，0.625s Recovery time 3 s
ー
ー
Lower part
Forced-air cooling
2400×900×1950 mm
ー
2000kg
ー
−20℃ to +50℃
−10℃ to +40℃
5 to 90％
1000m or less
JIS, JEM, JEC
RSｰ485
Remarks
Optional
Demarcation point
Based on the country’s grid code
Station service transformer panel
VCB
（52F1）
Non-condensing
500 kW
6.6 kV
50/60 Hz
200 A
12.5 kA
500 kVA
Three-phase
50/60 Hz
ー
DT
-MC
-MC
V
Wh
MCCB
SD
MCCB
Rectifier panel
MCCB Storage
battery
Rectifier panel
MCCB MCCB
2CT
A
MCCB
MCCB
MCCB
High-voltage panel
U>
Z >
Monitoring protection cubicle
Spare
High-voltage panel
A
MCCB MCCB MCCB
PAS
(with VT, LA and SOG)
V
Wh
Spare
DC panel
MCCB
Aerial wire
Spare
Storage
battery
Remarks
ZCT
U>
DT
2CT
■ Switchgear and step-up transformer (500kW) specifications
Item
Rated output
Electric specifications Power supply voltage
of switchgear
Rated current
Breaking capacity
Electric specifications Capacity
of step-up transformer Number of phases
Frequency
Cooling system
Connection system
Others
U>
From temporary
generator
F-MPC60B
LA×3
Station service transformer
three-phase mold
NGR
51G
2CT
LBS
PF
MCCB
MCCB
Others(meteorological
equipment, display)
No.1 Substation
No. 1 high-voltage air break switch
LBS
No. 1 step-up transformer
(Outdoor oil-immersed self-cooling type)
No.1 PCS
MCCB
CT1, 2
MC11
MC21
MC31
L12
L22
L32
L42
C1 L11
C2 L21
C3 L31
C4 L41
DCCT11,12
PWU1
DCCT21,22
PWU2
DCCT31,32
PWU3
DCCT41,42
PWU4
F11,12
F21,22
F31,32
F41,42
DCCT10
DCCT30
MCB11
MCB31
Solar cell
Solar cell
Solar cell
4 blocks
9
10
MC41
Solar cell
27
59
64
67S
95LH
66 kV transmission line
Demarcation point
Monitoring and control panel (outdoor)
3BCT
ES (manual)
F-MPC
LA×3
DS
（89R）(Electrically operated)
ES (manual)
Outdoor meter panel
(Supplied by electric power
utility company)
VD
W/TD
Var/TD
VCB(52R) C-GIS
ES (manual)
CLR
EVT
VCT
VCT
F-MPC
Monitoring and control panel
(indoor)
F-MPC
3BCT
Bus duct
Tr-1
Main transformer
Three-phase outdoor oil-immersed self-cooling
EVT
LA×3
V/TD
5CT
CLR
F-MPC
Incoming panel
64G
To each PCS panel
F-MPC
（52S）
VCB
Feeder panel
VCB
（52F1）
U>
From temporary
generator
DT
-MC
-MC
V
Wh
SD
MCCB
Rectifier panel
MCCB Storage
battery
Rectifier panel
MCCB MCCB
2CT
A
MCCB
MCCB
High-voltage panel
U>
Z >
Spare
High-voltage panel
MCCB
DC panel
MCCB
Wh
MCCB
MCCB
Others(meteorological
equipment, display)
No.2
No.1 Substation
No.3
No.4
PAS
No.5 Substation
LBS
No.6
No.7
No.8
No.1 PCS
MCCB
No.5 PCS
MC21
MC31
MC41
L12
L22
L32
L42
C1 L11
C2 L21
C3 L31
C4 L41
DCCT11,12
PWU1
DCCT21,22
PWU2
DCCT31,32
PWU3
DCCT41,42
PWU4
F11,12
F21,22
F31,32
F41,42
DCCT10
DCCT30
MCB11
MCB31
Solar cell
Solar cell
Same as
on the left
Same as
on the left
Same as
on the left
MC11
27
59
64
67S
95LH
Same as
on the left
Solar cell
Same as
on the left
Same as
on the left
CT1,2
MC21
MC31
MC41
L12
L22
L32
L42
C1 L11
C2 L21
C3 L31
C4 L41
DCCT11,12
PWU1
DCCT21,22
PWU2
DCCT30
MCB11
MCB31
Solar cell
Solar cell
4 blocks
11
DCCT31,32
PWU3
DCCT10
Solar cell
No.10
No.9 PCS
MCCB
CT1,2
MC11
No.9 Substation
LBS
MCCB
CT1, 2
4 blocks
10
Aerial wire
PAS
LBS
Solar cell
F-MPC60B
ZCT
Aerial wire
A
Spare
MCCB MCCB MCCB
ZCT
PAS
V
VCB
(52F3)
LA×3
Aerial wire
Spare
Storage
battery
F-MPC
LA×3
ZCT
U>
DT
2CT
MCCB
F-MPC60B
LA×3
Station service transformer
three-phase mold
NGR
51G
2CT
2CT
2CT
LBS
PF
VCB
（54F2）
Same as
on the left
Same as
on the left
Same as
on the left
DCCT41,42
PWU4
27
59
64
67S
95LH
Solar cell
Same as
on the left
Same as
on the left
Same as
on the left
MC11
MC21
MC31
MC41
L12
L22
L32
L42
C1 L11
C2 L21
C3
L31
C4
L41
DCCT11,12
PWU1
DCCT21,22
PWU2
DCCT31,32
PWU3
DCCT41,42
PWU4
F11,12
F21,22
F31,32
F41,42
DCCT10
DCCT30
MCB11
MCB31
Solar cell
Solar cell
Solar cell
Same as
on the left
Solar cell
27
59
64
67S
95LH
Same as
on the left
4 blocks
12
6.6 kV transmission line
Demarcation point
Installation of electric pole
VCT
PAS
Supply meter panel
Incoming panel
VD
Installation of
electric pole
DS
（89R）
(remote manual operation)
Incoming panel
2VT
VCB（52R）
RPS
Wh
64G
2CT
RPS
F-MPC60B
To each PCS panel
Wh
ZPD
PF:20A
LBS
VCB
（52F2）
VCB
（52F1）
Station service transformer three-phase mold
PV feeder panel
V
2CT
V
2CT
F-MPC60B
2CT
MCCB
2CT
Wh
MCCB
A
Wh
MCCB
Power load
Spare
6.6 kV cubicle
No.1 Substation
LBS
A
MCCB
F-MPC60B
ZCT
ZCT
MCCB
No.1 Substation
MCB11
Spare
Remote monitoring
No.2 Substation
LBS
No.2 Substation
MCB11
CT1,2
CT1,2
Measuring instrument
MC11
MC21
L12
C1
L11
L22
C2
DCCT11,12
PWU1
MC31
MC41
L32
C3
L21
DCCT21,22
PWU2
L31
L42
C4
DCCT31,32
PWU3
DCCT41,42
27
59
64
F31,32
67S
MCB11
MCB31
95LH
Solar cell
Solar cell
4 blocks
13
PWU1
F11,12
Solar cell
Solar cell
L11
MC31
L22
C2
DCCT11,12
PWU4
DCCT30
MC21
L12
C1
L41
Z
DCCT10
MC11
MC41
L32
C3
L21
DCCT21,22
PWU2
L31
L42
C4
DCCT31,32
PWU3
L41
DCCT41,42
PWU4
Z
DCCT10
F11,12
F31,32
MCB11
MCB31
Solar cell
27
DCCT30
Solar cell
Solar cell
59
64
67S
95LH
Solar cell
4 blocks
14
■ One-line diagram (2MW, Indoor self-standing type, Example of a 500 kW PCS)
6.6 kV transmission line
Demarcation point
Installation of electric pole
VCT
PAS
Installation of
electric pole
Incoming panel
VD
DS(89R)(remote manual operation)
Supply meter panel
Incoming panel
2VT
VCB(52R)
RPS
Wh
RPS
64G
To each PCS panel
2CT
Wh
FｰMPC60B
ZPD
PF:20A
LBS
VCB(52F2)
VCB(52F1)
Station service transformer three-phase mold
PV feeder panel
V
2CT
V
2CT
FｰMPC60B
ZCT
FｰMPC60B
ZCT
2CT
A
Wh
LBS
2CT
Wh
LBS
A
MCCB
MCCB
MCCB
Power load
Spare
6.6 kV cubicle
MCCB
MCCB
Stored inside container
Spare
Remote monitoring
No.1ｰPCS
(500kW)
MCB
MC21
L12
C
L11
C
L21
DCCT
C
C
Solar
cell
Solar
cell
MCB5
MCB4
Solar
cell
PWU2
MCB3
Solar
cell
DCCT
PWU1
MCB2
Solar
cell
Branch circuit breaker
(standard equipment)
L22
L21
DCCT
MCB1
Solar
cell
MCB5
Solar
cell
C
L11
PWU2
MCB4
Solar
cell
MC21
L12
DCCT
MCB3
Solar
cell
MCB2
Solar
cell
L22
PWU1
MC11
L21
DCCT
MCB1
Solar
cell
MCB5
Solar
cell
C
L11
PWU2
MCB4
Solar
cell
MC21
L12
DCCT
MCB3
Solar
cell
MCB2
Solar
cell
L22
PWU1
CT
MC11
L21
DCCT
MCB1
Solar
cell
MCB5
MCB4
Solar
cell
C
L11
PWU2
MCB3
MCB2
MCB1
Solar
cell
L12
DCCT
PWU1
MC21
No.2ｰPCS
(500kW)
MCB
CT
MC11
L22
No.1ｰPCS
(500kW)
MCB
CT
MC11
C
Stored inside container
No.2ｰPCS
(500kW)
MCB
CT
Measuring instrument
15
Solar
cell
Solar
cell
16
A monitoring unit quickly collects information
on proper photovoltaic power generation and
the state of each component.
■ Features
The SCADA system has the highest quality and cost performance in the industry.
The system has many features such as a web function, multilingual function,
high speed, extensibility, and reliability.
The system can be applied to a large-scale power generation system with several to more than 400,000 I/O points.
High speed
Extensibility
Optimal performance is achieved
every time.
The number of signals can be
extended from 75 to 400,000.
High-speed data collection and display
are achieved even in large-scale
systems by optimizing every
communication and reducing
unnecessary communication.
Various systems from small- to
large-scale configurations can be
supported. Also partial system
introduction is possible to reduce initial
investment.
Web functions and multilingual functions
Reliability
A system with minimal data loss is
achieved with a PC-based
configuration.
Communication functions and server
functions can be provided in
completely redundant configurations to
build a system that is safe, secure and
trouble-free, even in the event of any
malfunctions in a PC or in the network.
● Real-time information on plant status can be accessed from
anywhere in the world at any time. (Web connection license is
provided)
● Language switching is based on a table system for easy
switching to other languages. (For display, Windows fonts are
used.)
Graphic screen display
Menu screen (top menu, overall area)
Monitoring of each area of photovoltaic panel
■ System Configuration Example
Large-scale photovoltaic power generation installation area
PV facility
Thermometer
PV facility
RS panel
Client display
RS panel
RS panel
RS-485
(Selling power)
AI: Signal line
(Purchasing power)
Sunshine
recorder
AI: Signal line
Remote monitoring
server
22 to154kV
Extra-high-voltage
incoming panel
Sunshine
recorder
Modbus, etc.
Thermometer
System
interconnection
facility
Common screen functions
(for example, trends)
Skeleton monitoring screen
Form output function
RS panel
Citect SCADA using smartphone
Remote monitoring control area
A smartphone can be used as a maintenance management
tool for facilities.
Internet(WAN/VPN)
Trends and alarms can be checked through a wireless
The state of
installation areas such
as skeleton areas can
be monitored from a
remote site.
17
Remote monitoring
from existing personal
computers is possible.
Windows remote desktop connection.
Radio equipment
Remote monitoring control personal computer
18
About Microgrids
Fuji Electric also develops renewable energy solutions such as photovoltaic power generation and
wind power generation for isolated islands. These microgrid configurations can achieve balanced
operation with diesel power generation using a system with an advanced high-performance power
PCS and a lithium ion capacitor mounted stabilizer. We participate in many verification tests aiming
to reduce CO2 emissions and power generation costs.
MEMO
■ Conceptual diagram of microgrid
Load curve (old)
(New)
Electric power network on isolated islands
Interconnection point
total output
Interconnection point output
Large output
variation
Compensation
output
Output
PCS
Storage battery
PCS
On-island diesel
power generation system
Large output variation
Wind power generation(WT)
Control unit
Output
PCS
PCS: Power conditioner
Photovoltaic (PV) power generation
Electric power network based on renewable energy
Description of verification tests
• 6 islands in Kyushu (verification research in progress)
• 3 islands in Okinawa (verification research in progress)
<Case Study on Tarama Island in Okinawa>
Our lithium ion capacitor equipped stabilizer was introduced to enable high charging and discharging output and
high reliability.
Kuroshima Island (Kyushu)
19
Takarajima Island (Kyushu)
Tarama Island (Okinawa)
20
Printed on recycled paper
Gate City Ohsaki, East Tower, 11-2, Osaki 1-chome, Shinagawa-ku, Tokyo 141-0032, Japan
Phone : (03)5435-7111
Internet address : http://www.fujielectric.co.jp
Information in this catalog is subject to change without notice.
2012-8(H2012/E2012)PST/CTP10Ok Printed in Japan

Large-scale Photovoltaic Power Generation Systems

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