large-scale photovoltaic power generation systems
TRANSCRIPT
Gate City Ohsaki, East Tower, 11-2, Osaki 1-chome, Shinagawa-ku, Tokyo 141-0032, JapanPhone : (03)5435-7111
Internet address : http://www.fujielectric.co.jpInformation in this catalog is subject to change without notice.
Printed on recycled paper
2012-8(H2012/E2012)PST/CTP10Ok Printed in Japan 01D1-E-0001
Large-scale PhotovoltaicPower Generation Systems
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-IGBTAt 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.
■ 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 TechnologyPower stabilizers, private power generators, and hybrid power supplies such as wind power generation and fuel cellsFuji 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.
Our photovoltaic power generation systems provide eco-friendly energy.
1 2
Interconnection with transmission line of electric power utility company
Extra-high-voltage facility (22 to 154 kV)
Main transformer
High-voltage facility (6.6 kV)
PCS
PCS
GIS
PV panel
VCT
Connection box, current collection box
Connection box, current collection box
PV panel
Total Engineering Solutions from System Planning to MaintenanceFuji 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.
● High efficiency(98.5% for DC 1,000 V specifications)
● Series expanded to DC 600 V specifications
● Substation configuration for easy construction*
● System interconnection technology● Smart grid monitoring technology● Large-scale plant technology
● System-matched Modules ● Overseas and Japanese power generation operators(public and private sector)
PV module Sales and after-sales service
Transformation systemPCS(Power conditioner system)
■ Fuji Electric System Solutions
Total engineering(Installation, construction, quality assurance, after-sales service, etc.)
Other principal componentsTotal system design
(Electric equipment, system interconnection, stabilizer, IT, etc.)
Key technology
Power conditioner
Fuji Electric provides photovoltaic power generation systems optimized for each region by combining our in-depth experience and advanced technologies.
● 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)
*: Integrated configuration includes power conditioner system (PCS), switchgear, and step-up transformer.
Fuji Electric provides comprehensive system proposals for efficient operation from solar cells to power transmission.
■ One-line Diagram
PCS
PCS
PCS
PCS
PCS
PCS
3 4
Output line voltage waveform
Output line voltage waveform
New system(new three-level system)
Existing system(two-level system)
New IGBT module
INV4
INV3
INV2
INV1 1000 kVA LB
100
80
60
40
20
0
ACL and wiring lossSwitching loss
Existing system(two-level system)
New system(new three-level system)
Loss
[%]
3.6s 3.62s 3.64s 3.66s 4.6s 4.62s 4.64s
AC voltageU-V phase (red)V-W phase (green)W-U phase (blue)200 V/DIV
AC currentU phase (red)V phase (green)W phase (blue)25 A/DIV
Output [%]
9998979695949392919089
0 20 40 60 80 100
Note: Internal power supply is not included. IEC61683 efficiency tolerance is indicated.
Effi
cien
cy [%
]
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 World’s highest efficiency 98.5% (DC 1,000 V product)
Single unit capacity 1,000 kW
Standard FRT function
Outdoor substation type
New IGBT module
New three-level conversion circuit
Reduction of power loss
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
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).
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.
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.
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.
5 6
Operation screenExample of appearance Example of outside dimensions
(Unit: mm)
(Front view)
DC main circuitcable and ground wire
Step-up transformerLBS panel
Base (1)High-voltage main circuit
Cable and ground wire
2830
150Concrete foundation
(Top view)Step-up transformer
LBS panel
6150
3600
800 800 120012001000 1000
2550
2400
2130
Specifications
■ PCS (DC 1000 V) specifications (Outdoor self-standing type) ■ PCS (DC 750 V) specifications (Outdoor self-standing type)
■ Switchgear and step-up transformer (1000 kW) specifications
Item
Electric specifications (DC input)
Electric specifications(AC output)
System interconnection
Panel structure
Dimensions
Mass
Environmental conditions
Relevant standardCommunication system
Item
Electric specifications (DC input)
Electric specifications(AC output)
System interconnection
Panel structure
Dimensions
Mass
Environmental conditions
Relevant standardCommunication system
ItemElectric specifications of switchgear
Electric specifications of step-up transformer
Series nameRated outputInsulation systemDC input voltage rangeDC input voltage (MPPT range)Number of DC input branchesRated output capacityRated output voltageRated frequencyNumber of output phasesRated output currentOutput power factor
Output current distortion factor (total)Output current distortion factor (each)Equipment highest efficiencyEquipment efficiency (Euro efficiency)Overload capacityNoiseSystem protectionIndividual operation detection system (passive)Individual operation detection system (active)Voltage rise suppression function FRTInstallation systemApplicable IPSystem typeCable lead-inCooling systemPCS single unit (W × D × H)Substation (W × D × H)PCS single unitSubstationStorage temperatureOperating temperatureRelative humidityAltitude
Series nameRated outputInsulation systemDC input voltage rangeDC input voltage (MPPT range)Number of DC input branchesRated output capacityRated output voltageRated frequencyNumber of output phasesRated output currentOutput power factor
Output current distortion factor (total)Output current distortion factor (each)Equipment highest efficiencyEquipment efficiency (Euro efficiency)Overload capacityNoiseSystem protectionIndividual operation detection system (passive)Individual operation detection system (active)Voltage rise suppression function FRT
Installation systemApplicable IPSystem typeCable lead-inCooling systemPCS single unit (W × D × H)Substation (W × D × H)PCS single unitSubstationStorage temperatureOperating temperatureRelative humidityAltitude
Rated outputPower supply voltagePower supply frequencyNumber of power supply phasesRated currentBreaking capacityCapacityNumber of phasesFrequencyCooling systemConnection systemOthers
PVI1000-3/10001000 kWTransformerless system1000 V460 V to 950 V41000 kW270 V ー10 % to +12 %50/60 Hz ±5 %Three-phase, three-wire; isolated neutral system supported.2138 A>0.99(at rated output) <5 % (at rated output)<3 % (at rated output)98.5 %98.2 %100 % continuous85 dBOV, UV, OF, UFDetection of voltage phase jumpReactive power variation systemReactive current compensation, active current output suppressionVmin=15 %,0.625 S Recovery time 3 sOutdoor self-standing typeIP54Substation systemLower partForced-air cooling3600×2130×2830 mm6150×2400×2830 mmAbout 7000 kgAbout 12500 kg−20 ℃ to +50 ℃−10 ℃ to +40 ℃15 to 95 %2000 m or lessIEC62109-1RS-485/MOD BUS/TCP
1000 kW4.16 to 34.5 kV50/60 HzThree-phase, three-wire200 A12.5 kA1000 kVAThree-phase50/60 HzOil-immersed self-cooling ーContact prevention plate is provided.
Remarks
24 branches (Option)
Individual operation Q output excluded (when output is 1/8 of rated output).
Based on the country’s grid code.Measures against salt damage are optional.
Integrated step-up transformer and switchgear
High-temperature option available for +50 °C.Non-condensingHigh-altitude option available for over 2000 m.
PVI750ー3/750750kWTransformerless system750 V320 V to 750 V4750 kW200 V ー10 % to +12 %50/60 Hz ±5 %Three-phase, three-wire; isolated neutral system supported.2165 A>0.99(at rated output)
<5 % (at rated output)<3 % (at rated output)97.8 %97.4 %100 % continuous85 dBOV, UV, OF, UFDetection of voltage phase jumpReactive power variation systemReactive current compensation, active current output suppressionJEAC9701ー2010(conforms to supplementary version of 2011)Outdoor self-standing typeIP54Substation systemLower partForced-air cooling3600×2130×2830 mm6150×2400×2830 mmAbout 7000 kgAbout12500 kg−20 ℃ to +50 ℃−10 ℃ to +40 ℃15 to 95 %2000 m or lessJIS, JEM, JECRSー485/MOD BUS/TCP
Remarks
16 branches (Option)
Individual operation Q output excluded (when output is 1/8 of rated output).
Based on the country’s grid code
Measures against salt damage are optional.
Integrated step-up transformer and switchgear.
High-temperature option available for +50 °C.Non-condensing
Remarks
Values other than the left value are optional.
■ Switchgear and step-up transformer (750kW) specificationsItemElectric specifications of switchgear
Electric specifications of step-up transformer
Rated outputPower supply voltagePower supply frequencyNumber of power supply phasesRated currentBreaking capacityCapacityNumber of phasesFrequencyCooling systemConnection systemOthers
750 kW6.6 kV50/60 HzThree-phase, three-wire200 A12.5 kA750 kVAThree-phase50/60 HzOil-immersed self-cooling ーContact prevention plate is provided.
Remarks
Values other than the left value are optional.
PCS
PCS
7 8
PCS optional
■ PCS (DC 750 V) specifications (Indoor self-standing type)Item
Electric specifications (DC input)
Electric specifications (AC output)
System interconnection
Panel structure
Dimensions
Mass
Environmental conditions
Relevant standardCommunication system
Series nameRated outputInsulation systemDC input voltage rangeDC input voltage (MPPT range)Number of DC input branchesRated output capacityRated output voltageRated frequencyNumber of output phasesRated output currentOutput power factorOutput current distortion factor (total)Output current distortion factor (each)Equipment highest efficiencyEquipment efficiency (Euro efficiency)Overload capacityNoiseSystem protectionIndividual operation detection system (passive)Individual operation detection system (active)Voltage rise suppression functionFRTInstallation systemApplicable IPSystem typeCable lead-inCooling systemPCS single unit (W × D × H)Substation (W × D × H)PCS single unitSubstationStorage temperatureOperating temperatureRelative humidityAltitude
PVI750ー3/500500kWTransformerless system750V320V to 700V5500kW200V ー10% to +12%50/60HzThree-phase, three-wire; isolated neutral system supported.1444A>0.99 (at rated output)<5% (at rated output)<3% (at rated output)97.7%97.3%100% continuous75dB or lessOV, UV, OF, UFDetection of voltage phase jumpReactive power variation systemReactive current compensation, active current output suppressionVmin=15%,0.625s Recovery time 3 sOutdoor self-standing typeーーLower partForced-air cooling2400×900×1950 mmー2000kgー−20℃ to +50℃−10℃ to +40℃5 to 90%1000m or lessJIS, JEM, JECRSー485
Remarks
Optional
Individual operation Q output excluded
Based on the country’s grid code
Non-condensing
■ Switchgear and step-up transformer (500kW) specificationsItemElectric specifications of switchgear
Electric specifications of step-up transformer
Rated outputPower supply voltagePower supply frequencyNumber of power supply phasesRated currentBreaking capacityCapacityNumber of phasesFrequencyCooling systemConnection systemOthers
500 kW6.6 kV50/60 HzThree-phase, three-wire200 A12.5 kA500 kVAThree-phase50/60 HzOil-immersed self-cooling ーContact prevention plate is provided.
Remarks
Values other than the left value are optional.
New Series !
9
System Configuration Example
■ One-line diagram (10MW, Outdoor self-standing type, Example of a 1,000 kW PCS)
10 11 12
66 kV transmission line
Demarcation point
F-MPCW/TD
V/TD
Var/TD
F-MPC
F-MPC
Bus duct
LA×3
5CT
(52S)VCB
VCB(54F2)
VCB(52F3)
F-MPC60B2CT 2CT
Aerial wireAerial wire Aerial wire
Feeder panel
Incoming panel
LA×3 LA×3ZCT ZCT
PAS (with VT, LA and SOG)
PAS (with VT, LA and SOG)
EVT CLR
3BCT
Tr-1Main transformerThree-phase outdoor oil-immersed self-cooling
3BCT
LA×3
Monitoring and control panel (outdoor)
VDES (manual)
ES (manual)
ES (manual)
Outdoor meter panel(Supplied by electric power
utility company)
Monitoring and control panel (indoor)
DS(89R)(Electrically operated)
VCB(52R) C-GIS
CLREVTVCTVCT
F-MPC
F-MPC
F-MPC
F-MPC60B
VCB(52F1)
Station service transformer panel
Station service transformer three-phase mold
LBS
NGR
PF
From temporary generator
MCCB MCCB
High-voltage panelSpare
SpareRectifier panel
High-voltage panelSpare
DC panel
Monitoring protection cubicle
Rectifier
Storage battery panel
Storagebattery
Monitoring protection cubicleMonitoring protection cubicle
Others(meteorological equipment, display)
MCCB
MCCB
MCCB
MCCB
MCCB
MCCBMCCBMCCB
MCCB
MCCB No.1 PCS No.5 PCS No.9 PCSMCCB MCCB
CT1,2 CT1,2CT1, 2
MC11
L12
L11C1
DCCT11,12PWU1
F11,12
DCCT10
MCB11
Solar cell Solar cell Solar cell Solar cell
4 blocks 4 blocks 4 blocks
Solar cell Solar cell Solar cell Solar cell Solar cell Solar cell Solar cell Solar cell
MCB31 MCB11 MCB31 MCB11 MCB31
DCCT30 DCCT10 DCCT30 DCCT10 DCCT30
F21,22 F31,32 F41,42 F11,12 F21,22 F31,32 F41,42275964
67S95LH
PWU2 PWU3 PWU4 PWU1 PWU2 PWU3 PWU4 PWU1 PWU2 PWU3 PWU4DCCT21,22 DCCT31,32 DCCT41,42 DCCT11,12 DCCT21,22 DCCT31,32 DCCT41,42 DCCT11,12 DCCT21,22 DCCT31,32 DCCT41,42
C2 C3 C4 C1 C2 C3 C4 C1 C2 C3 C4L21 L31 L41 L11 L21 L31 L41 L11 L21 L31 L41
L22 L32 L42 L12 L22 L32 L42
MC21 MC31 MC41 MC11 MC21 MC31 MC41 MC11 MC21 MC31 MC41
MCCBMCCBMCCB
51G
U>
DT DT
-MC
2CT 2CTV
AWh
SD
Wh A
V
-MC
U>
U>
>Z
2CTLA×3
ZCT
PAS (with VT, LA and SOG)
No. 1 high-voltage air break switchLBS
No. 5 high-voltage air break switchLBS
No. 5 high-voltage air break switchLBS
No.1 Substation No.5 Substation No.9 Substation No.10No.2
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
No.3 No.4 No.6 No.7 No.8
No. 1 step-up transformer(Outdoor oil-immersed self-cooling type)
No. 5 step-up transformer(Outdoor oil-immersed self-cooling type)
No. 5 step-up transformer(Outdoor oil-immersed self-cooling type)
64GTo each PCS panel
275964
67S95LH
275964
67S95LH
L12 L22 L32 L42
System Configuration Example
■ One-line diagram (10MW, Outdoor self-standing type, Example of a 1,000 kW PCS)
10 11 12
66 kV transmission line
Demarcation point
F-MPCW/TD
V/TD
Var/TD
F-MPC
F-MPC
Bus duct
LA×3
5CT
(52S)VCB
VCB(54F2)
VCB(52F3)
F-MPC60B2CT 2CT
Aerial wireAerial wire Aerial wire
Feeder panel
Incoming panel
LA×3 LA×3ZCT ZCT
PAS (with VT, LA and SOG)
PAS (with VT, LA and SOG)
EVT CLR
3BCT
Tr-1Main transformerThree-phase outdoor oil-immersed self-cooling
3BCT
LA×3
Monitoring and control panel (outdoor)
VDES (manual)
ES (manual)
ES (manual)
Outdoor meter panel(Supplied by electric power
utility company)
Monitoring and control panel (indoor)
DS(89R)(Electrically operated)
VCB(52R) C-GIS
CLREVTVCTVCT
F-MPC
F-MPC
F-MPC
F-MPC60B
VCB(52F1)
Station service transformer panel
Station service transformer three-phase mold
LBS
NGR
PF
From temporary generator
MCCB MCCB
High-voltage panelSpare
SpareRectifier panel
High-voltage panelSpare
DC panel
Monitoring protection cubicle
Rectifier
Storage battery panel
Storagebattery
Monitoring protection cubicleMonitoring protection cubicle
Others(meteorological equipment, display)
MCCB
MCCB
MCCB
MCCB
MCCB
MCCBMCCBMCCB
MCCB
MCCB No.1 PCS No.5 PCS No.9 PCSMCCB MCCB
CT1,2 CT1,2CT1, 2
MC11
L12
L11C1
DCCT11,12PWU1
F11,12
DCCT10
MCB11
Solar cell Solar cell Solar cell Solar cell
4 blocks 4 blocks 4 blocks
Solar cell Solar cell Solar cell Solar cell Solar cell Solar cell Solar cell Solar cell
MCB31 MCB11 MCB31 MCB11 MCB31
DCCT30 DCCT10 DCCT30 DCCT10 DCCT30
F21,22 F31,32 F41,42 F11,12 F21,22 F31,32 F41,42275964
67S95LH
PWU2 PWU3 PWU4 PWU1 PWU2 PWU3 PWU4 PWU1 PWU2 PWU3 PWU4DCCT21,22 DCCT31,32 DCCT41,42 DCCT11,12 DCCT21,22 DCCT31,32 DCCT41,42 DCCT11,12 DCCT21,22 DCCT31,32 DCCT41,42
C2 C3 C4 C1 C2 C3 C4 C1 C2 C3 C4L21 L31 L41 L11 L21 L31 L41 L11 L21 L31 L41
L22 L32 L42 L12 L22 L32 L42
MC21 MC31 MC41 MC11 MC21 MC31 MC41 MC11 MC21 MC31 MC41
MCCBMCCBMCCB
51G
U>
DT DT
-MC
2CT 2CTV
AWh
SD
Wh A
V
-MC
U>
U>
>Z
2CTLA×3
ZCT
PAS (with VT, LA and SOG)
No. 1 high-voltage air break switchLBS
No. 5 high-voltage air break switchLBS
No. 5 high-voltage air break switchLBS
No.1 Substation No.5 Substation No.9 Substation No.10No.2
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
Same as on the left
No.3 No.4 No.6 No.7 No.8
No. 1 step-up transformer(Outdoor oil-immersed self-cooling type)
No. 5 step-up transformer(Outdoor oil-immersed self-cooling type)
No. 5 step-up transformer(Outdoor oil-immersed self-cooling type)
64GTo each PCS panel
275964
67S95LH
275964
67S95LH
L12 L22 L32 L42
System Configuration Example
■ One-line diagram (2MW, Outdoor self-standing type, Example of a 1,000 kW PCS)
13 14
6.6 kV transmission line
Demarcation point
Installation of electric pole
Installation of electric pole
Incoming panel
Incoming panel
Supply meter panel
Station service transformer panel
PF:20A LBS
Station service transformer three-phase mold
PAS
Wh
Wh
RPS
RPS
VCT
VD
DS(89R)(remote manual operation)
VCB(52R)
2CT
2VT64G F-MPC60B
To each PCS panel
ZPD
2CT 2CT
V
Wh Wh
V
A A
MCCB MCCB MCCB MCCB MCCB
F-MPC60B
PV feeder panel
VCB(52F1)
2CT
ZCT
No. 1 high-voltage air break switchLBS
No. 1 step-up transformer(Outdoor oil-immersed self-cooling type)
MCB11CT1,2
No.1 Substation
No.1 Substation
MC11
L12
L11 L21 L31 L41
L22 L32 L42
MC21 MC31 MC41
DCCT11,12 DCCT21,22 DCCT31,32 DCCT41,42
PWU1 PWU2 PWU3 PWU4
C1 C2 C3 C4
F11,12 F31,32
MCB11 MCB31
DCCT10 DCCT30Z
27596467S95LH
Solar cell Solar cell Solar cell Solar cell Solar cell Solar cell Solar cell Solar cell
4 blocks 4 blocks
27
59
64
67S
95LH
F11,12 F31,32MCB11 MCB31
Z
DCCT10 DCCT30
MC11
L12 L22 L32 L42
MC21 MC31 MC41
DCCT11,12 DCCT21,22 DCCT31,32 DCCT41,42
PWU1 PWU2 PWU3 PWU4
L11 L21 L31 L41C1 C2 C3 C4
MCB11CT1,2
No.2 Substation
F-MPC60B
No. 2 high-voltage air break switchLBS
No. 2 step-up transformer(Outdoor oil-immersed self-cooling type)
VCB(52F2)
2CT
ZCT
No.2 Substation
Power loadSpare
Spare6.6 kV cubicle
Measuring instrumentRemote monitoring
System Configuration Example
■ One-line diagram (2MW, Indoor self-standing type, Example of a 500 kW PCS)
15 16
6.6 kV transmission line
Demarcation point
Installation of electric pole
Installation of electric pole
Incoming panel
Incoming panelSupply meter panel
Station service transformer panel
PF:20A LBS
Station service transformer three-phase mold
PAS
Wh
WhRPS
RPS
VCT
VD
DS(89R)(remote manual operation)
VCB(52R)
2CT
2VT64G FーMPC60B
To each PCS panel
ZPD
2CT 2CT
V
Wh Wh
V
A A
MCCB MCCB MCCB MCCB MCCB
FーMPC60B
PV feeder panel
VCB(52F1)
2CT
ZCT
No. 1 step-up transformer(Outdoor oil-immersed self-cooling type)
MCB
CT
No.2ーPCS(500kW)
Stored inside container Stored inside containerNo.1ーPCS(500kW)
Branch circuit breaker (standard equipment)
Branch circuit breaker (standard equipment)
MC11
L12
L11 L21
L22
MC21
DCCT DCCT
PWU2PWU1
C C
MC
B1
MC
B2
Solarcell
FーMPC60B
No. 2 high-voltage air break switchLBS
No. 1 high-voltage air break switchLBS
VCB(52F2)
2CT
ZCT
Solarcell
MC
B3
Solarcell
MC
B4
Solarcell
MC
B5
Solarcell
MC
B1
MC
B2
Solarcell
Solarcell
MC
B3
Solarcell
MC
B4
Solarcell
MC
B5
Solarcell
MCB
CT
MC11
L12
L11 L21
L22
MC21
DCCT DCCT
PWU2PWU1
C C
No. 2 step-up transformer(Outdoor oil-immersed self-cooling type)
MCB
CT
No.2ーPCS(500kW)
No.1ーPCS(500kW)
Branch circuit breaker (standard equipment)
Branch circuit breaker (standard equipment)
MC11
L12
L11 L21
L22
MC21
DCCT DCCT
PWU2PWU1
C C
MC
B1
MC
B2
Solarcell
Solarcell
MC
B3
Solarcell
MC
B4
Solarcell
MC
B5
Solarcell
MC
B1
MC
B2
Solarcell
Solarcell
MC
B3
Solarcell
MC
B4
Solarcell
MC
B5
Solarcell
MCB
CT
MC11
L12
L11 L21
L22
MC21
DCCT DCCT
PWU2PWU1
C C
Power loadSpare
Spare6.6 kV cubicle
Measuring instrumentRemote monitoring
Reliability
A monitoring unit quickly collects information on proper photovoltaic power generation and the state of each component.
■ Features
■ System Configuration Example
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 ExtensibilityOptimal performance is achieved every time.High-speed data collection and display are achieved even in large-scale systems by optimizing every communication and reducing unnecessary communication.
The number of signals can be extended from 75 to 400,000.Various systems from small- to large-scale configurations can be supported. Also partial system introduction is possible to reduce initial investment.
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.)
Web functions and multilingual functions
Graphic screen display
A smartphone can be used as a maintenance management tool for facilities.Trends and alarms can be checked through a wireless Windows remote desktop connection.
Citect SCADA using smartphone
Menu screen (top menu, overall area)
Skeleton monitoring screenCommon screen functions (for example, trends) Form output function
Monitoring of each area of photovoltaic panel
Remote monitoring control area
Large-scale photovoltaic power generation installation area
PV facilitySystem
interconnection facility
Extra-high-voltage incoming panel
AI: Signal lineAI: Signal line RS-485
22 to154kV
(Pur
chas
ing
pow
er)
(Sel
ling
pow
er)
RS panel RS panel RS panel RS panelClient displayRemote monitoring server
Sunshine recorder Sunshine
recorder
Thermometer Thermometer
Remote monitoring control personal computer
Internet(WAN/VPN)
Modbus, etc.
The state of installation areas such as skeleton areas can be monitored from a remote site.
Remote monitoring from existing personal computers is possible.
Radio equipment
PV facility
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On-island diesel power generation system
Wind power generation(WT)Output
Output
Compensation output
Large output variation
Large output variation
PCS
PCS
Photovoltaic (PV) power generation
PCS
Interconnection point total output Interconnection point output
Load curve (old)
(New)
Electric power network on isolated islands
PCS: Power conditioner
Electric power network based on renewable energy
Control unit
Storage battery
■ Conceptual diagram of microgrid
Description of verification tests
Tarama Island (Okinawa)
• 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) Takarajima Island (Kyushu)
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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.
About Microgrids
MEMO
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Gate City Ohsaki, East Tower, 11-2, Osaki 1-chome, Shinagawa-ku, Tokyo 141-0032, JapanPhone : (03)5435-7111
Internet address : http://www.fujielectric.co.jpInformation in this catalog is subject to change without notice.
Printed on recycled paper
2012-8(H2012/E2012)PST/CTP10Ok Printed in Japan 01D1-E-0001
Large-scale PhotovoltaicPower Generation Systems