Embed Size (px)
Citation preview
Substation
Accelerating Train
Direct Chargeand Discharge
Braking Train
Discharge
Charge
Emergency Runs
Installed BPS
Benefits
Energy Saving No Regeneration Cancellation Peak Shaving
Osaka Subway
Verification Tests
Line Voltage Stabilization Alternative to Substations
Location Osaka Supply year 2011
Battery capacity 205kWh Use BPS
Osaka Subway Tokyo Monorail
Tokyo Monorail Sapporo SubwayLocation Hokkaido Supply year 2013
Battery capacity 204kWh Use BPS
Washington D.C. Subway(WMATA)
New York Subway
Location Osaka Supply year 2013
Battery capacity 204kWh Use BPS
Location Tokyo Supply year 2013
Battery capacity 203kWh Use BPS
Location Tokyo Supply year 2014
Battery capacity 203kWh Use BPS
Location Washington D.C. Supply year 2012
Battery capacity 385kWh Use BPS
Location New York Supply year 2010
Battery capacity 367kWh Use BPS
Interior of a BPS cabinet
High-capacity nickel-metalhydride battery GIGACELL ,
used for the BPS
BPS
http://www.khi.co.jp/english/gigacell/
Tokyo Head Of�ce 1-14-5, Kaigan, Minato-ku, Tokyo 105-8315, Japan Phone: +81-3-3435-2572Building 4, 29 Wells Avenue, Yonkers, New York, 10701, U.S.A. Phone: +1-914-376-4700 http://www.kawasakirailcar.com/ KAWASAKI RAIL CAR, INC.
Apr.2015
GIGACELL Battery Sales Sec., Machinery & Parts Sales Dept., Marketing & Sales Div., Rolling Stock Company
GIGACELL® is a trademark of Kawasaki Heavy Industries, Ltd. in Japan and the U.S.A.
Enhances Generation of Regenerative Energy Voltage Stabilization
625 V DC Third Rail Voltage & Battery Power Waveforms
Emergency Runs during Power Outages
-1500-5 0 5 10 15 20
-1000
-500
0
500
1000
1500
2000
Po
wer
(kW
)
Time (sec)
Regenerative Energy of NYCT Test Train "R160"
Regenerative Energy(With BPS) 2.94 kWh
Regenerative Energy(Without BPS) 1.34 kWh
Start of Braking
An extra 1.6 kWh saved per every stop
Energy Saving
BPS accumulates excessive electricity when there are no powering trains nearby, enabling trains to fully utilize their regenerative braking function and maximize energy savings.
Reducing overall energy consumption by encouragingregenerative braking and then “recycling” it.
No Regeneration Cancellation
BPS's line voltage stabilizing effect prevents the trains' pantographs from rising to the regeneration cutoff voltage.
Stabilized line voltage prevents regenerative braking failure
Peak Shaving
Heavy train traffic causes higher power demand. Discharge from BPS decreases the substation's power demand.
Power discharged from the BPS reduces power demand atall times, including rush hours
In an event of a power outage, BPS will feed power to move stranded trains and evacuate passengers to the next station.
Batteries will power trains to the nearest station during apower outage
BPS will assist in feeding power to accelerating trains, reducing voltage sags and enabling optimum train operation.
Charging and discharging stabilizes line voltage
BPS will support traction power and enable downsizing of substation facilities.
The BPS can serve as an alternative to substations
BLACKOUT!
* HSCB= High Speed Circuit Breaker
Powering
0:00 2:00 4:00 6:00 8:00 10:00 12:00 14:00 16:00 18:00 20:00 22:00 24:00
700
650
600
550
500
450
400
350
300
250
3rd
Rai
l V
olt
age
(V)
(= B
atte
ry V
olt
age
(V))
2500
2000
1500
1000
500
0
-500
-1000
-1500
-2000
Time
3rd Rail Voltage (V)
Battery Power (kW)
NYCT-BPS at Central Substation 3rd Rail Voltage & Battery Power Waveforms
Bat
tery
Po
wer
(kW
)
Dis
char
geC
har
ge
Data taken in July 2010
Emergency Runs
Line Voltage Stabilization Alternative to Substations
3rd
Rai
l V
olt
age
(V)
Time
950
900
850
800
750
700
6504：00 8：00 12：00 16：00 20：00 0：00 4：00
Max. 939 V
Without BPS
Min. 703 V
Max. 854 V
Min. 718 V
Duration of BPS Connection
With BPS
Osaka Subway BPS Data
Benefits of the BPS
System OutlineLow CostsNo power controllers needed
High Ef�ciencyNo loss through controllers
No Delays and LossesMax. use of regenerative energy
No EMINo adverse effects to signal systems Power line
HSCB
Battery
SubstationⅠ SubstationⅡ
Rail
BPS
HSCB
HSCBHSCB
Direct Connection to System
