Princeton Power Systems, Inc.
Battery Energy Storage for Microgrids
Overview of Presentation
 Who is PPS (Princeton Power Systems)
 Products and Experience
 Microgrid Storage – Converter Requirements
 Battery Technology for Storage
 PPS Products for Storage
 Application Examples
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Who We Are
Clean Power, Made Simple.
PPS is a leading global designer and manufacturer of technology products
for microgrids, electric vehicle (EV) charging, and energy storage, with
built-in functions for Smart Grid services.
Microgrids Energy Security, Off-grid “Island”
Power, Hybrid Solar/Wind/Diesel, Grid ancillary
services
Electric Vehicle Charging Infrastructure
Fast-Charging (20 minutes/200 miles), Zero-emission
solar charging
Energy Storage Systems Containerized battery
systems with Advanced batteries from top-tier
manufacturers
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Products & Experience
Key Inverter Features
Power Converter Products
 Core PPS product line, over hundred deployed
 10 - 250 kW units with 2,3,4 power source inputs
Off-grid & grid-tied with UL and CE listings
Multi-port for flexible, configurable systems
Bi-directional, advanced battery compatible
Smart-Grid and Microgrid functions built-in
Key EV Charge Features
Electric Vehicle Charging Stations
DC Fast-charging (200 miles in 20 minutes)
Bi-directional, provide grid-services
Solar-integrated zero-emission charging
 Fast-charge vehicles & grid services
Key ESS Features
Containerized Energy Storage Systems
 Converters integrated with advanced batteries
Top-tier advanced batteries
Microgrid & Grid Service functions
Renewable-firming functions built-in
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Microgrid Storage – Converter Requirements
Inverter Simulates AC Generator
 Grid Forming
 Power/Frequency Droop (Mechanical Inertia Simulation)
 Voltage/Var Droop
600VDC
AC Bus
Autonomous
Voltage/Frequency
Droop
280VDC
Compatible with wide input voltage
range
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Make
Chemistry
Model
Toshiba
SCiB
(LithiumTitanate)
FM01202CCA01A 324-576VDC
12KWH
38KW
Enerdel
Hard Carbon/Mixed
Oxide, Li-Ion
SE100-590
100KWH, 100KW
360-590 VDC
GE Durathon
Sodium-Nickel
E620
432-575VDC
20KWH
Saft
Graphite based
Anode, Nickel Oxide
Cathode, Carbonate
Synerion 24M
357-476VDC
33KWH
102KW
LiPF6
Characteristic
Samsung
Intercalation Graphite
Anode, Lithiated
Metal Oxide, Li-Ion
SDI
384-524VDC
113KWH
100KW
Kokam
Lithium Polymer
KRO
371-531VDC
105KWH
100KW
Panasonic
Lithium-Ion
LC-T1270
348-588VDC
36KWH
Copyright
2013 Princeton Power Systems, Inc. PAGE 6
Power Electronics Products
DRI100
Grid-Tied Inverter (GTIB)
2-Terminal Power System
30 & 100KVA Models
Battery-InteGrated Inverter (BIGI)
Multi-DC Power System
250KVA Model
GTIB100
Demand Response Inverter (DRI)
4-Terminal Power System
10 & 100KVA Models
DRI10
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AC Bus
MICROGRID
GRID/GENERATOR
Battery
Technical Details:
100KVA, 208/480V, 60Hz
82KWH LiIon
On Grid OR Microgrid
(Current Source / Grid Forming)
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Challenges:
• Integration with Li-Ion BMS
• Susceptibility of BMS to
dVGND/dt of transfomerless
systems
• Transport
• Weight and Size
100KVA, 82KWH Energy Storage Solution
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San Diego Zoo
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EaglePicher Industrial Peak Shaver
System Size: 2MWh / 1MW, 480 Vac, 20 kW PV, 10kW
Wind
Components: PPS GTIB-100 Inverters, multiple battery
types, 4 x 45ft ISO Containers, PV, wind, Power Pyramid
Control Software
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World-Class Projects
Real Application:
 Alcatraz Island Microgrid
 Scripps Ranch San Diego
 LaGuardia Airport AVIS EV Chargers
 San Diego Zoo Microgrid
 PJM Frequency Regulation Resource(s)
 Many other major customers and projects
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Product Development Partners
PPS’ Technology development has been largely financed by US DOE and DoD programs
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