DEVELOPMENT OF A CURRENT CONTROL ULTRACAPACITOR CHARGER BASED ON DIGITAL SIGNAL PROCESSING
Abstract: Ultracapacitor
usually use as a short-term duration electrical energy storage because it has
several advantages, like high power density (5kW/kg), long lifecycle and very
good charge/discharge efficiency. Unlike batteries, ultracapacitors may be
charged and discharged at similar rates. This is very useful in energy recovery
systems such as dynamic braking of transport systems. Here are a few characteristics of
ultracapacitors that should be kept in mind when integrating/designing a
charging system for the intended application. An ultracapacitor with zero
charge looks like a short circuit to the charging source. Most of low cost
power supplies fold back the output current in response to a perceived short
circuit, making them unsuitable for charging of ultracapacitors.
Ultracapacitors have a low series inductance allowing easy stabilizing with
switch mode chargers. The RC time constant of passive charging networks is
usually too long. Therefore, linear regulators are inefficient components for
ultracapacitor charging. In this paper, the development of a current control
ultracapacitor charger based on Digital Signal Processing (DSP) is presented.
Penulis: Ahmad Saudi Samosir
Kode Jurnal: jptkomputerdd090038
Artikel Terkait :
Jp Teknik Komputer dd 2009
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