Active Power Filters in Zero Energy Buildings
Master thesis
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http://hdl.handle.net/11250/2454410Utgivelsesdato
2017Metadata
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Sammendrag
With an increasing focus on the environment and moving from fossil to renewable energy,
there has and is an increasing interest in zero energy buildings. Zero energy buildings
often utilize local intermittent renewable energies such as wind and solar energy, and are
going to play an important role in the smart grid development with their distributed
generation and energy storage etc. In Southern Norway, the smart village Skarpnes is utilizing
building integrated photovoltaic systems and is developed for studying zero energy
buildings and its impact on electricity demand and power quality.
Power electronic based equipment such as uninterruptible power supplies, adjustable speed
drives, personal computers and more have all enhanced our daily lives by providing an
efficient and reliable way of utilizing the electrical energy. Because of their non-linear behaviour,
they are responsible for harmonic currents causing additional losses and harmful
effects.
In this thesis, a shunt active power filter based on the instantaneous power theory used for
power quality improvement is studied. This involves harmonic current, reactive power and
neutral current compensation, where load data is obtained from the smart village Skarpnes
project. Investigating the operation of the shunt active power filter during import
and export of power, during load changes and operation during distorted and unbalanced
utility voltage.
Based on simulations using MATLAB/Simulink the three-phase, four-wire shunt active
power filter is able to compensate the harmonic currents, reactive power and neutral
current. The total harmonic distortion in the source current after compensation is below
limits proposed by the Institute of Electrical and Electronics Engineers Standard 519-2014
for all test cases
Beskrivelse
Master's thesis Renewable Energy ENE500 - University of Agder 2017