Helmut Kogler, Rudolf Scheidl, Michael Ehrentraut,
"A Simulation Model of a Hydraulic Buck Converter Based on a Mixed Time Frequency Domain Iteration"
, in ASME: Proc. of the ASME/BATH 2013 Symposium on Fluid Power & Motion Control - FPMC2013, October 6-9, 2013, Sarasota, Florida, USA, 10-2013
Original Titel:
A Simulation Model of a Hydraulic Buck Converter Based on a Mixed Time Frequency Domain Iteration
Sprache des Titels:
Englisch
Original Buchtitel:
Proc. of the ASME/BATH 2013 Symposium on Fluid Power & Motion Control - FPMC2013, October 6-9, 2013, Sarasota, Florida, USA
Original Kurzfassung:
Digital hydraulics is an opportunity to realize simple, robust,
cheap and energy efficient hydraulic drives. In such systems
digital on/off valves are used instead of proportional valves.
Moreover, in hydraulic switching converters the valves are actuated
within a few milliseconds, which create sharp pressure
changes and, in turn, significant wave propagation effects in the
pipe system. For a proper design of digital hydraulic systems a
sound understanding of these effects is required to achieve the
desired behavior of the switching drive system. In such converters,
like the buck-, boost or boost-buck-converter, the inductance
is one crucial component. It is realized by a simple pipe
mainly for cost reasons. Furthermore, switching converters contain
some components with nonlinear characteristics, like valves
or accumulators, which prevent a comprehensive analysis in frequency
domain. For a convenient analysis a qualified model of
a hydraulic buck converter based on a mixed time frequency domain
iteration is presented. Main parameters of this model are
identified and wave propagation effects in the inductance pipe of
the converter are investigated by simulation.
Forschungs-