Battery-Supercapacitor Hybrid Energy Storage System

1
Battery-Supercapacitor Hybrid Energy Storage
System
ECE 480Team 10
KELD, LLC

• Constraints
• 48 Volts 20
• 1kW output for at least 18 seconds every cycle.
• System must run for a minimum of 20 minutes
  without external power.
• Testing
• Solid state relays were attached to the ground
  side of the circuit.
• Relay controller was programmed to switch each
  relay on sequentially.

Design Requirements (1) Design and build a hybrid
structure (or circuit configuration) of a battery
and supercapacitors to provide needed power to a
load. (2) Be able to program the load to simulate
a pulse signal. (3) Test and demonstrate the
hybrid energy storage system to prove that the
constant power is from the battery and the pulse
power of the load is from the super capacitor.
(4) Provide final report and suggestions to
improve/optimize the system.
Abstract The advent of new, high-energy storage
capacitors, and lighter rechargeable batteries,
with greater energy density, has allowed new
developments in the clean energy sector.
Introduction Problem Rechargeable batteries
have flaws that make them imperfect as primary
energy sources in day to day applications. Soluti
on Use super capacitors as buffer between the
load and the battery.
Final schematic
System Design Evolution
Technical Approach Our prototype is based on the
system 4 methodology that we developed in the
Design Evolution diagram on the left. We
constructed a 51.8V battery with an imbedded PCM
to power the system. Do to the unavailability of
an 85F, 48V supercapacitor module, this system
utilizes a 165F connected in parallel with the
battery. Two 5ohm, 1000W rated resistors
connected in parallel function together as our
2.5 ohm load. The solid state relays in the
system are designed to operate on the ground side
of the circuit. The system is controlled by a
Milenium3 programmable relay controller .
Equipment Cost
165F Supercapacitor 2,240.00
14 Lithium Ion polymer battery cells 1,316.00
Power Control Module 99.95
3 Heat Sinks 454.23
Logic Controller 277.00
2 High powered Resistors 299.12
4 Relays 248.80
Power Supply 92.00
Container 306.16
60V Power Supply 484.83
Total 5,818.09
Marvell Mukongolo Chi-Fai Lo
Michael A. Kovalcik Jamal X. Adams Dr.
Peng Mr. Koenig Management
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