Voltage tracking of DC-DC boost converter using gaussian fuzzy logic controller
DC-DC converters are electronic devices used to change DC electrical power efficiently from one voltage level to another. Operation of the switching devices causes the inherently nonlinear characteristic of the DC-DC converters including one known as the Boost converter. Consequently, this con...
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| 主要作者: | |
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| 格式: | Thesis |
| 語言: | English |
| 出版: |
2012
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| 主題: | |
| 在線閱讀: | http://eprints.uthm.edu.my/2463/1/24p%20SITI%20HASMAH%20JAMALI.pdf |
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| 總結: | DC-DC converters are electronic devices used to change DC electrical power
efficiently from one voltage level to another. Operation of the switching devices
causes the inherently nonlinear characteristic of the DC-DC converters including one
known as the Boost converter. Consequently, this converter requires a controller with
a high degree of dynamic response. Proportional-Integral- Differential (PID)
controllers have been usually applied to the converters because of their simplicity.
However, the main drawback of PID controller is unable to adapt and approach the
best performance when applied to nonlinear system. It will sufer from dynamic
response, produces overshoot, longer rise time and settling time which in turn will
influenced the output voltage regulation of the Boost converter. Therefore, the
implementation of practical Fuzzy Logic controller that will deal to the issue must be
investigated. Fuzzy logic controller using voltage output as feedback for significantly
improving the dynamic performance of boost dc-dc converter by using
MATLAB@Simulink software. The design and calculation of the components
especially for the inductor has been done to ensure the converter operates in
continuous conduction mode. The evaluation of the output has been carried out and
compared by software simulation using MATLAB software between the open loop
and closed loop circuit. The simulation results are shown that voltage output is able
to be control in steady state condition for DC-DC boost converter by using this
methodology.Scope of this project limited only one types that is Gaussian
membership function. |
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