HYBRID MODELLING AND CONTROL OF MODIFIED CUK CONVERTER
Power converter with switching mode, which is widely used in power electronics circuits, has some advantages including high efficiency, flexible output voltage, and lightweight. One of the power converters with switching mode is the Cuk converter, which can produce an output voltage lower or high...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/80944 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Power converter with switching mode, which is widely used in power electronics
circuits, has some advantages including high efficiency, flexible output voltage, and
lightweight. One of the power converters with switching mode is the Cuk converter,
which can produce an output voltage lower or higher than the input voltage but
with reverse voltage polarization. In addition, Cuk converter also has a capacitor
as an isolation between the input and the output side. In previous studies, the Cuk
converter was modified so that it has an output voltage polarization that is not
reversed like a conventional Cuk converter but with continuous input and output
currents like a conventional Cuk converter. Circuits with switching in power
electronics will produce hybrid behavior naturally. Control is needed on this
switching so that the hybrid behavior of the converter does not cause problems and
is able to overcome disturbances or changes that occur. Modified Cuk converter
has a non-linear nature caused by switching activity so non-linear control is
needed. The non-linear control design that is generally used for the power
converter is complicated. So in this study, the authors proposed a control scheme
for a modified Cuk converter based on a hybrid model. The proposed control
scheme has the advantage of a simpler and easier design and tuning process. The
expected result of this research is a control scheme that is simple and easy to design
on this modified Cuk converter which is able to overcome disturbances or changes
that occur in the circuit by giving control commands to the switching. |
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