19-05-2014, 12:35 PM
Review of Ultracapacitor Technology and its Application
ABSTRACT
The paper [15] shows energy storage technologies do not represent en-
ergy sources but they provide value added benefits to improve system
stability, power quality and reliability of supply. As batteries tech-
nologies are low cost ,well established and widely used technology offer
disadvantages like volume, weight, poor power density, high internal
resistance, poor transient response, they are not suitable for some tran-
sient application or where volume and size are an important issue. On
the other hand due to advancement in the material and other technol-
ogy, Ultracapacitors offers high power density, fast transient response,
low Wight, low volume and low internal resistance which make them
suitable for pulsed load application. In this paper we will review some
of the present application of the Ultracapacitor(UC) in the field of low
power and high power applications like telecommunication devices, au-
tomatic meter reading system, load leveling on the electrical power sys-
tem, maintaining continuity of power during outages, improving prof-
itability in high energy system, enhance transmission capacity of the
transmission grid in high power application, various power quality and
backup related uses such as UPS system and power stabilization, to im-
prove reliability of wind turbine pitch system. Simple ultracapcitor and
battery model with pulse load is simulated in MATLAB-SIMULINK
without and with DC to DC buck boost converter to prove ultracapac-
itor as a peak power supply device.