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72-34, Horikawa-cho, Saiwai-ku, Kawasaki 212-8585, Japan Tel: +81-44-331-1600TOSHIBA CORPORATION
Find out more on http://toshiba-railway.com
The information contained herein is as of August 8, 2016.The information contained herein is subject to change without notice.The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of TOSHIBA or others.TOSHIBA products should not be embedded to the downstream products which are prohibited to be produced and sold, under any lawTOSHIBA does not take any responsibility for incidental damage (including loss of business profit, business interruption, loss of business information, and other pecuniary damage)arising out of the use or disability to use TOSHIBA products.The products described in this document may include products subject to the foreign exchange and foreign trade laws.The products described in this document may contain components made in the United States and subject to export control of the U.S. authorities. Diversion contrary to the U.S. law is prohibited.
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2016.08/2
Infrastructure Systems & Solutions Company
Traction Energy Storage System with SCiB™
For DC Railway Power Supply SystemsItem Rating / Function
Rated Power 500kW – 2000kW
Rated Capacity 146kWh – 777kWh
Rated Feeder Voltage 1500V (950V – 2000V)
Rated Battery Voltage 600V (500V – 713V)
Load Pattern 1 p.u. (1min) – 0.5 p.u. (4min) 0.5 p.u. – Continuous
Operation mode 1. V-SOC Mode -Charge and Discharge corresponding with feeding voltage and SOC. Voltage stabilization of transient fluctuation is also available.
2. Emergency Power Supply Mode -Discharge energy without power from grid.
Control Function 1. V-SOC Control2. Monitoring3. Sequence Control4. Schedule Control5. Data Logging (Option)6. Remote Maintenance (Option)
Simulation Study
Ratings and Speci�cations
To better tend to customer's needs, Toshiba o�ers a more customer-oriented engineering which includes a simulation study using Toshiba's advanced traction power simulation software engines. With this, Toshiba can o�er a more suitable solution.
ChargeCharge DischargeDischarge
Deceleration(Regenerative Breaking) Acceleration
DC1500V
SubstationSubstation
(Regenerative Power)
When a train set is braking, it generates energy which can be used by the adjacent accelerating trains. But in most cases, this regenerative energy is not e�ciently utilized by the next train and is wasted as heat through onboard or wayside resistors. Such cases does not only incur energy wastage but also likely to cause abrupt shift from regenerative braking to mechanical braking. This sudden change may further cause passenger ride discomfort and degradation of the brake shoe due to abrasion.
Toshiba developed Traction Energy Storage System (TESS) with SCiB™, a new energy saving solution with Toshiba’s own battery technology of high quality.
Toshiba’s Traction Energy Storage System e�ciently stores surplus regenerative energy in the SCiB™ and discharges it to another accelerating train. TESS is installed with Toshiba’s patented advance control system which allows �exible control of charge-discharge cycles in accordance to the battery’s State-of-Charge (SOC). This allows signi�cant increase in battery lifetime.
Charge/Discharge corresponding with Feeder Voltage
※SOC : State-of-Charge※V-SOC : Voltage-State-of-Charge
Crush Test for SCiB™ Cell Battery
Conventional Control
Advanced V-SOC Control
Discharge Area
Discharge Area
Charge Area
Charge Area
DischargeStart Voltage
DischargeStart Voltage
Char
ge a
nd D
isch
arge
Cur
rent
Char
ge a
nd D
isch
arge
Cur
rent
Charge Start Voltage
Charge Start Voltage
Feeder Voltage
Feeder Voltage
High performance SCiB™TESS utilizes Toshiba’s own high performance SCiB™This battery has various outstanding characteristics. By using unique oxide materials, SCiB™ holds high resistance against thermal runaway caused by internal short circuiting brought about by physical stresses.
Advanced V-SOC Battery ControlToshiba also developed a completely new and advanced Charge-Discharge algorithm for the e�cient control of TESS.For conventional energy storage systems, battery is charged and discharged to keep speci�ed SOC (State of Charge). Thus, battery is charged and discharged regardless of the feeding voltage. There will be instances when the battery will be unnecessarily charged/discharged even at rated line voltage (area between the Charge Start Voltage and Discharge Start Voltage). Thus causing feeding voltage imbalance and shortened battery lifetime. As for Toshiba’s advance V-SOC control method, charge and discharge characteristics automatically shifts depending on SOC. When SOC is high, charge-discharge characteristic will shift to the higher voltage side, hence the battery shall be easily discharged. On the other hand, when SOC is low, charge-discharge characteristic will shift to the lower voltage side thus, battery shall perform more charging. The lifetime of a battery strongly depends on the charge-discharge times and current. By using this control algorithm, unnecessary charge and discharge can be greatly reduced.
Toshiba’s system does not de�ne any certain SOC which means that charge and discharge will be performed dynamically within a wide range of SOC.
Traction Energy Storage System with SCiB™
Key Bene�ts
System Outline
Better Regenerative
Braking OperationEnergy Saving Line Voltage
StabilizationEmergency
Power Supply
Dimensions for 500kW TESS for 1500V DC Railway Systems
DC1500V
DC600V
・ Charge and Discharge Control・ System Monitoring・ System Control・ Data Logging
Surplus regenerative energy can be e�ciently charged and discharged to/from the SCiB™ Battery thus preventing regenerative brake failures.
SCiB™’s remarkable charge- discharge e�ciency characteristics can reduce energy wastage and ultimately, promote power demand peak cut.
Stored energy can be utilized to accelerate the trains and safely bring passengers to the nearest station during power failure. This function is most applicable when installed in tunnel and bridge sections.
Wide E�ectiveSOC Range
High Input /Output
Long Life
Installation of TESS can improve traction power quality through voltage stabilization.
600W × 650D × 2100H × 8Panel- Utilizes high output 40Ah Battery Modules - Compact design
- Utilizes high output 40Ah Battery Modules - Compact design
1800W × 2380D × 2300H- High capacity design applicable to a wide range of feeding systems
- High capacity design applicable to a wide range of feeding systems
600W × 1700D × 2100H × 2Panel-Safe and Easy maintenance design -Compact Design-Safe and Easy maintenance design -Compact Design
500W × 600D × 2100H × 2Panel- Installed with user-friendly HMI with increased functionality- Installed with user-friendly HMI with increased functionality
Control Panel DC Switchgear
ConverterBattery Panel
When SOC is high;Charge and DischargeCharacteristic will be shifted tohigher voltage side and TESSwill discharge more(There is no adjusting chargeand discharge)
When SOC is low;Charge and DischargeCharacteristic will be shifted tolower voltage side and TESSwill charge more.
Adjusting Charge and Dischargeis required for keeping SOC ascertain value.
AdjustingCharge andDischarge
can be operated up to 15,000 charge-discharge cycles
Rapid Charging
can be fully charged in 6 minutes*
SafeUses highly safelithium titanium
oxide (LTO)
Provides a large available capacity
Chargeable at largecurrent and provideslarge current output
Low Temperature
OperationCan be used attemperaturesas low as -30°C
*Results of cell level tests under certain conditions. Not a guaranteed performance.
2.4km
7‰8‰
32.4‰
33‰
35‰
Acceleration
Substation Substation with TESS
Substation
Field Test Conditions
TESS Capacity
TESS Output
Train Speed
Auxiliary Power
194kWh
500kW
15km/h
In Use1000
1100
1200
1300
1400
1500
1600
1700
18001741V
1678V
1768V
1235V1170V
1592V1636V
1691V
1252V 1226V 1239V
1117V
6:00~7:00 7:00~8:00 8:00~9:00
Voltage Fluctuation Stabilization Resultsduring Morning Rush Hour
When a train set is braking, it generates energy which can be used by the adjacent accelerating trains. But in most cases, this regenerative energy is not e�ciently utilized by the next train and is wasted as heat through onboard or wayside resistors. Such cases does not only incur energy wastage but also likely to cause abrupt shift from regenerative braking to mechanical braking. This sudden change may further cause passenger ride discomfort and degradation of the brake shoe due to abrasion.
Toshiba’s Traction Energy Storage System e�ciently stores surplus regenerative energy in the SCiB™ and discharges it to another accelerating train. TESS is installed with Toshiba’s patented advance control system which allows �exible control of charge-discharge cycles in accordance to the battery’s State-of-Charge (SOC). This allows signi�cant increase in battery lifetime.
ChargeCharge DischargeDischarge
Deceleration(Regenerative Breaking) Acceleration
DC1500V
SubstationSubstation
(Regenerative Power)
Toshiba developed Traction Energy Storage System (TESS) with SCiB™, a new energy saving solution with Toshiba’s own battery technology of high quality.
Miebashi Ajimine
Deceleration(Regenerative Breaking)
Sueyoshi
Performance Record
Total Traction Energy ConsumptionTotal Traction Energy Consumption
Ajimine SSAjimine SS Miebashi SSMiebashi SS
Okinawa City Monorail - Suesyoshi Substation Field Test Result
LocationPeak Value
(Without TESS)Peak Value(With TESS)
Peak Cut
E�ect
Sueyoshi SS
All SS (Total)
310 kWh/0.5h
830 kWh/0.5h
280 kWh/0.5h
800 kWh/0.5h
10%
3.6%
TESS for Energy Saving
Tokyo Metro – Ayase Substation Field Test Results500kW TESS was installed in Ayase Substation of Tokyo Metro for energy saving and emergency power supply. TESS was able to independently power a 10-Car Train including all its auxiliary equipment (air conditioners, etc.) through a 2.4 kilometer distance from Ayase Station to Kita-Senju Station. This distance has a section with steep gradient of up to +33‰. Even at this stringent condition, TESS was able to safely power the train in a power failure condition.
500kW TESS was installed in Sueyoshi Substation of Okinawa City Monorail. With TESS operation, 10% power peak cut was achieved in Sueyoshi SS power consumption alone. Signi�cant power peak cut was also achieved in total power consumption in all substations.
With TESS, daily traction energy consumption was reduced to 575kWh/day (-17%) during weekday and 883kWh/day (-32%) during weekend while reducing the adjacent substation energy consumption as well.
TESS for Emergency Power Supply
Tobu Urban Park Line – Unga Station Battery Post During the adaptation of new type of cars, signi�cant loss in line voltage was expected to occur between Noda Substation and Toyoshiki Substation (11.65km distance). To stabilize line voltage in this section and avoid building new substation, 1000kW TESS was installed as a battery post.
TESS was able to stabilize line voltage �uctuation without having to build a new substation. Furthermore, power peak cut was also achieved through the e�ective use of regenerative energy.
TESS for Line Voltage Stabilization
Ata
go S
tati
on
Noda Substation Unga Station Toyoshiki Substation
Nod
a-sh
i Sta
tion
Um
esat
o St
atio
n
Hat
syis
hi S
tati
on
Toyo
shik
i Sta
tion
Kash
iwa
Stat
ion
Nag
arey
ama
oota
kano
mor
i Sta
tion
Edog
awad
ai St
atio
n
Ung
a St
atio
n
4.13km 7.52km
Battery Panel600W × 650D × 2100H × 16Panel Weight:550kg ×16Panel
Control Panel500W × 600D × 2100H × 2Panel Weight:250kg × 2Panel
Converter
Total : -9%
1800W × 2380D × 2300H × 2PanelWeight:5,000kg×2Panel
DC Switchgear600W × 1700D × 2100H × 2PanelWeight:970kg × 1Panel + 750kg × 1Panel
Traction Energy Storage System with SCiB™
Key Bene�ts
System Outline
Better Regenerative
Braking OperationEnergy Saving Line Voltage
StabilizationEmergency
Power Supply
Dimensions for 500kW TESS for 1500V DC Railway Systems
DC1500V
DC600V
・ Charge and Discharge Control・ System Monitoring・ System Control・ Data Logging
Surplus regenerative energy can be e�ciently charged and discharged to/from the SCiB™ Battery thus preventing regenerative brake failures.
SCiB™’s remarkable charge- discharge e�ciency characteristics can reduce energy wastage and ultimately, promote power demand peak cut.
Stored energy can be utilized to accelerate the trains and safely bring passengers to the nearest station during power failure. This function is most applicable when installed in tunnel and bridge sections.
Installation of TESS can improve traction power quality through voltage stabilization.
600W × 650D × 2100H × 8Panel- Utilizes high output 40Ah Battery Modules - Compact design
- Utilizes high output 40Ah Battery Modules - Compact design
1800W × 2380D × 2300H- High capacity design applicable to a wide range of feeding systems
- High capacity design applicable to a wide range of feeding systems
600W × 1700D × 2100H × 2Panel-Safe and Easy maintenance design -Compact Design-Safe and Easy maintenance design -Compact Design
500W × 600D × 2100H × 2Panel- Installed with user-friendly HMI with increased functionality- Installed with user-friendly HMI with increased functionality
Control Panel DC Switchgear
ConverterBattery Panel
0
1000
2000
3000
4000
5000
6000
Sueyoshi SSSueyoshi SS
- 6%
17%-
With TESSWith TESS Without TESSWithout TESS
Ajimine SSAjimine SS Miebashi SSMiebashi SS0
1000
2000
3000
4000
5000
6000
Sueyoshi SSSueyoshi SS
32%-
14%-
Weekday Weekend Total : -14%
without TESS
Line
Vol
tage
[V]
withTESS
without TESS
withTESS
without TESS
withTESS
Arakawa Bridge
River
Kita-SenjuStation
Ayase Station
Power Peak Cut
2.4km
7‰8‰
32.4‰
33‰
35‰
Acceleration
Substation Substation with TESS
Substation
Field Test Conditions
TESS Capacity
TESS Output
Train Speed
Auxiliary Power
194kWh
500kW
15km/h
In Use1000
1100
1200
1300
1400
1500
1600
1700
18001741V
1678V
1768V
1235V1170V
1592V1636V
1691V
1252V 1226V 1239V
1117V
6:00~7:00 7:00~8:00 8:00~9:00
Voltage Fluctuation Stabilization Resultsduring Morning Rush Hour
When a train set is braking, it generates energy which can be used by the adjacent accelerating trains. But in most cases, this regenerative energy is not e�ciently utilized by the next train and is wasted as heat through onboard or wayside resistors. Such cases does not only incur energy wastage but also likely to cause abrupt shift from regenerative braking to mechanical braking. This sudden change may further cause passenger ride discomfort and degradation of the brake shoe due to abrasion.
Toshiba’s Traction Energy Storage System e�ciently stores surplus regenerative energy in the SCiB™ and discharges it to another accelerating train. TESS is installed with Toshiba’s patented advance control system which allows �exible control of charge-discharge cycles in accordance to the battery’s State-of-Charge (SOC). This allows signi�cant increase in battery lifetime.
ChargeCharge DischargeDischarge
Deceleration(Regenerative Breaking) Acceleration
DC1500V
SubstationSubstation
(Regenerative Power)
Toshiba developed Traction Energy Storage System (TESS) with SCiB™, a new energy saving solution with Toshiba’s own battery technology of high quality.
Miebashi Ajimine
Deceleration(Regenerative Breaking)
Sueyoshi
Performance Record
Total Traction Energy ConsumptionTotal Traction Energy Consumption
Ajimine SSAjimine SS Miebashi SSMiebashi SS
Okinawa City Monorail - Suesyoshi Substation Field Test Result
LocationPeak Value
(Without TESS)Peak Value(With TESS)
Peak Cut
E�ect
Sueyoshi SS
All SS (Total)
310 kWh/0.5h
830 kWh/0.5h
280 kWh/0.5h
800 kWh/0.5h
10%
3.6%
TESS for Energy Saving
Tokyo Metro – Ayase Substation Field Test Results500kW TESS was installed in Ayase Substation of Tokyo Metro for energy saving and emergency power supply. TESS was able to independently power a 10-Car Train including all its auxiliary equipment (air conditioners, etc.) through a 2.4 kilometer distance from Ayase Station to Kita-Senju Station. This distance has a section with steep gradient of up to +33‰. Even at this stringent condition, TESS was able to safely power the train in a power failure condition.
500kW TESS was installed in Sueyoshi Substation of Okinawa City Monorail. With TESS operation, 10% power peak cut was achieved in Sueyoshi SS power consumption alone. Signi�cant power peak cut was also achieved in total power consumption in all substations.
With TESS, daily traction energy consumption was reduced to 575kWh/day (-17%) during weekday and 883kWh/day (-32%) during weekend while reducing the adjacent substation energy consumption as well.
TESS for Emergency Power Supply
Tobu Urban Park Line – Unga Station Battery Post During the adaptation of new type of cars, signi�cant loss in line voltage was expected to occur between Noda Substation and Toyoshiki Substation (11.65km distance). To stabilize line voltage in this section and avoid building new substation, 1000kW TESS was installed as a battery post.
TESS was able to stabilize line voltage �uctuation without having to build a new substation. Furthermore, power peak cut was also achieved through the e�ective use of regenerative energy.
TESS for Line Voltage Stabilization
Ata
go S
tati
on
Noda Substation Unga Station Toyoshiki Substation
Nod
a-sh
i Sta
tion
Um
esat
o St
atio
n
Hat
syis
hi S
tati
on
Toyo
shik
i Sta
tion
Kash
iwa
Stat
ion
Nag
arey
ama
oota
kano
mor
i Sta
tion
Edog
awad
ai St
atio
n
Ung
a St
atio
n
4.13km 7.52km
Battery Panel600W × 650D × 2100H × 16Panel Weight:550kg ×16Panel
Control Panel500W × 600D × 2100H × 2Panel Weight:250kg × 2Panel
Converter
Total : -9%
1800W × 2380D × 2300H × 2PanelWeight:5,000kg×2Panel
DC Switchgear600W × 1700D × 2100H × 2PanelWeight:970kg × 1Panel + 750kg × 1Panel
Traction Energy Storage System with SCiB™
Key Bene�ts
System Outline
Better Regenerative
Braking OperationEnergy Saving Line Voltage
StabilizationEmergency
Power Supply
Dimensions for 500kW TESS for 1500V DC Railway Systems
DC1500V
DC600V
・ Charge and Discharge Control・ System Monitoring・ System Control・ Data Logging
Surplus regenerative energy can be e�ciently charged and discharged to/from the SCiB™ Battery thus preventing regenerative brake failures.
SCiB™’s remarkable charge- discharge e�ciency characteristics can reduce energy wastage and ultimately, promote power demand peak cut.
Stored energy can be utilized to accelerate the trains and safely bring passengers to the nearest station during power failure. This function is most applicable when installed in tunnel and bridge sections.
Installation of TESS can improve traction power quality through voltage stabilization.
600W × 650D × 2100H × 8Panel- Utilizes high output 40Ah Battery Modules - Compact design
- Utilizes high output 40Ah Battery Modules - Compact design
1800W × 2380D × 2300H- High capacity design applicable to a wide range of feeding systems
- High capacity design applicable to a wide range of feeding systems
600W × 1700D × 2100H × 2Panel-Safe and Easy maintenance design -Compact Design-Safe and Easy maintenance design -Compact Design
500W × 600D × 2100H × 2Panel- Installed with user-friendly HMI with increased functionality- Installed with user-friendly HMI with increased functionality
Control Panel DC Switchgear
ConverterBattery Panel
0
1000
2000
3000
4000
5000
6000
Sueyoshi SSSueyoshi SS
- 6%
17%-
With TESSWith TESS Without TESSWithout TESS
Ajimine SSAjimine SS Miebashi SSMiebashi SS0
1000
2000
3000
4000
5000
6000
Sueyoshi SSSueyoshi SS
32%-
14%-
Weekday Weekend Total : -14%
without TESS
Line
Vol
tage
[V]
withTESS
without TESS
withTESS
without TESS
withTESS
Arakawa Bridge
River
Kita-SenjuStation
Ayase Station
Power Peak Cut