a 400 kwh advanced battery energy storage system (abess
TRANSCRIPT
A 400 kWh Advanced Battery A 400 kWh Advanced Battery Energy Storage System (ABESS)Energy Storage System (ABESS)
for Utility Applicationsfor Utility Applications
ZBBZBB
ZBBZBBProject ContributorsProject Contributors
• US DOE Office of Power Technologies– Energy Storage Program (Funding)
• Sandia National Laboratories– Cost shared contract
• The Detroit Edison Company– Test sites, transformer, data collection
• SatCon Power Systems Canada, Ltd.– Power conversion system
• ZBB Energy Corporation– Battery system
Goals of ProgramGoals of Program• To manufacture a 400 kWh Zinc/Bromine
ABESS. (DOE support since 1979).• To test battery system at two utility sites.
– Site 1 (Fall 2000) - Power quality, peak shavingAkron, Michigan.
– Site 2 (Summer-Fall 2001) - Peak shaving, Lum, Michigan.
ZBBZBB
ZBBZBBZinc/Bromine TechnologyZinc/Bromine Technology
ZBBZBB50 kWh Battery Module50 kWh Battery Module
• 50 kWh (150 A, 30oC)• 120 to 0 V DC• 0 to 300 amps discharge• 2 to 10 hour discharge• 8’ x 3’ x 3’ • Approx. 3,000 lbs.
ZBBZBB
400 kWh Zinc/Bromine 400 kWh Zinc/Bromine Battery ConfigurationBattery Configuration
String 1 Module432 V O/C 108 V O/C150 amp nom. 150 amp nom.300 amp cont. 300 amp cont.
String 2 Total432 V O/C 432 V O/C150 amp nom. 300 amp nom.300 amp cont. 600 amp cont.
ZBBZBB
400 kWh ABESS Characteristics400 kWh ABESS Characteristics• 400 kWh Capacity• Two independent strings• 480 to 0 V DC• 0 to 300 amp discharge
per string• 2 to 10 hour discharge• 20’ x 8’ x 9’6”• Approx. 40,000 lbs.
ZBBZBB
ZBBZBBSatConSatCon PCS CharacteristicsPCS Characteristics
• 200kW/250kVA• Grid connected
or stand alone• 480/400V AC,
3 phase• 50 or 60 Hz• Full four quadrant
power control
ZBBZBBABESS TransportationABESS Transportation
• Move out of ZBB facility • Lift onto lowboy trailer using crane• Assemble Parts on trailer at DE
Warren Service Center• Transport to site• Install ventilation fans on site• Insert upper battery modules on site• Add electrolyte to modules on site
ZBBZBBABESS TransportationABESS Transportation
ZBBZBBABESS TransportationABESS Transportation
ZBBZBBABESS TransportationABESS Transportation
ZBBZBB Detroit EdisonDetroit EdisonAkron Site DescriptionAkron Site Description
• Grain drying facility in Akron, Michigan.• Primarily power quality application• Season runs from mid-October to December.• Eight 75 HP motors cause power quality sag
issues for other customers on grid.• 4-6 disturbances per day, plus a number of
small events due to conveyor.
ZBBZBBAkron Grain Drying FacilityAkron Grain Drying Facility
ZBBZBBAkron Grain Drying FacilityAkron Grain Drying Facility
ZBBZBBLine Voltage With No CompensationLine Voltage With No Compensation
420
430
440
450
460
470
480
490
500
510
520
1 181 361 541 721 901 1081 1261 1441 1621 1801 1981 2161 2341 2521 2701 2881 3061 3241 3421
Record time (sec) [11:45am to 12:45pm, November 7, 2000]
Volta
ge V
ac (V
)
ZBBZBBLine Voltage With CompensationLine Voltage With Compensation
420
430
440
450
460
470
480
490
500
510
520
8000 8180 8360 8540 8720 8900 9080 9260 9440 9620 9800 9980 10160 10340 10520 10700 10880 11060 11240 11420
Record time (sec) [2:47pm to 3:47pm, November 20, 2000]
Volta
ge V
ac (V
)
ZBBZBBAkron Site ResultsAkron Site Results
• Grain dryer causes 850 kVA spike.– Spike was higher than expected.– ABESS reduced voltage drop on line.
• Voltage overshoot when dryer turned off.– ABESS eliminated voltage overshoot.
ZBBZBB Detroit EdisonDetroit EdisonLum Site DescriptionLum Site Description
• Peak shaving application• 800 kVA Transformer near capacity• Load expected to exceed transformer
rating due to summer peaking.
ZBBZBBLum Peak Shaving SiteLum Peak Shaving Site
ZBBZBB400 kWh ABESS at Lum Site400 kWh ABESS at Lum Site
ZBBZBBVoltage Profile for 50 kWh ModuleVoltage Profile for 50 kWh Module
-200
-150
-100
-50
0
50
100
150
200
0 50 100 150 200 250
Time (Minutes)
Volta
ge (V
olts
) / C
urre
nt (A
mps
)
String1VoltageString1Current
ZBBZBBVoltage Profile for 200 kWh StringVoltage Profile for 200 kWh String
-200
-100
0
100
200
300
400
500
600
0 50 100 150 200 250 300
Time (Minutes)
Volta
ge (V
olts
) / C
urre
nt (A
mps
)
String1VoltageString1Current
ZBBZBBLoad on Utility LineLoad on Utility Line
-100
-50
0
50
100
150
200
250
300
350
400
450
500
0 50 100 150 200 250 300
Time (Minutes)
Pow
er (K
W)
kW (Transformer)kW (Battery)kW (Load)
ZBBZBBLum Site Test ResultsLum Site Test Results
• Interconnection issues resolved on-site• SatCon and ZBB software issues worked
out on site• Successful interface between utility, PCS
and battery• Data analysis in progress
ZBBZBBLessons Learned from ProgramLessons Learned from Program
• Need for data collection prior to sizing ABESS.(Knowledge of voltage sags/surges prior to installation.)
• Transportation could have been performed in one step with a “Low-boy” trailer.
• Software and noise issues could not be addressed until ABESS on site.
ZBBZBB400 kWh ABESS Summary400 kWh ABESS Summary
• Successfully demonstrated at two DE sites.• Akron Site Summary (Power Quality)
– Reduced the line voltage drop associated with start-up of the grain dryer to under 5%.
– Eliminated overvoltage observed during grain dryer shut-down.
• Lum Site Summary (Peak Shaving)– Demonstrated capability to automatically control
ABESS for Peak Shaving application.– Invited back for testing next summer by Detroit Edison
(Negotiations underway).