Development of a power factor correction buck converter in single phase rectifier using fuzzy logic
Power Factor Correction (PFC) circuits are widely used in single-phase rectifiers in order to emulate a linear resistive behavior. The buck PFC is still the most popular configuration due to its simplicity, but it suffers from high voltage stresses across the power electronic devices. This thesis...
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| Format: | Thesis |
| Language: | English English English |
| Published: |
2013
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/6629/1/24p%20TAREK%20ABDUSALAM%20R.%20ALAYEB.pdf http://eprints.uthm.edu.my/6629/2/TAREK%20ABDUSALAM%20R.%20ALAYEB%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/6629/3/TAREK%20ABDUSALAM%20R.%20ALAYEB%20WATERMARK.pdf http://eprints.uthm.edu.my/6629/ |
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| Summary: | Power Factor Correction (PFC) circuits are widely used in single-phase rectifiers in
order to emulate a linear resistive behavior. The buck PFC is still the most popular
configuration due to its simplicity, but it suffers from high voltage stresses across the
power electronic devices. This thesis presents to development buck converter in
single phase rectifier used the fuzzy logic.
The methodology integrates fuzzy logic controlling the output voltage of DC-DC
converter and to improve performance of the buck converter during transient
operation. Instead of generating fast pulse-width-modulated (PWM) signal, the
digital signal processor is required to generate a slow- varying dc signal only for
determining the PWM ramp function. A model for power factor correction has been
formed by using the MALTAB software. The simulation and experimental results
show that output voltage of buck converter can be control according to the value of
duty cycle. The advantage of using the Buck Converter in power factor correction
circuit is that better line regulation is obtained with appreciable power factor. |
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