Hardware development of DSP - based shunt active filters
Power quality problems have great adverse economical impact on the utilities and customers. Current harmonics are one of the most common power quality problems which traditional passive filters are unable to resolve. Current harmonics are primarily produced when non-linear loads are connect...
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Format: | Final Year Project |
Language: | English |
Published: |
2011
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Subjects: | |
Online Access: | http://hdl.handle.net/10356/45017 |
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Institution: | Nanyang Technological University |
Language: | English |
Summary: | Power quality problems have great adverse economical impact on the utilities and
customers. Current harmonics are one of the most common power quality problems
which traditional passive filters are unable to resolve. Current harmonics are primarily
produced when non-linear loads are connected to point of common coupling (PCC). The
adverse effect can caused forms of voltage and current distortions that damage the
equipments that is connected to the same PCC or shorten the life span of supply source.
Nowadays, modern active filters such as the shunt active filter are used to compensate
these current harmonic problems. In this report, the background phenomena and
literature review on power quality problems and solutions are discussed. The key focus
of this project is the hardware design and implementation for single phase shunt active
filter.
Controller is also introduced to demonstrate the extraction of the fundamental and
harmonic components from source current using the fast fourier transformer (FFT)
theory. The controller is developed using MATLAB Simulink and tested and integrated
with the hardware prototype of the shunt active filter. |
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