Shunt active power filter operating with a multi-variable filter and new reference current generation for harmonics and reactive power compensation

TL;DRAbstract

A brief overview of sources of harmonic distortion and their impact on electrical power distribution system is described in this thesis. The operation of common harmonic mitigation schemes namely passive power filters and shunt active power filter are presented and analysed. A new reference current generation scheme based on instantaneous Reactive power theory suitable for three-phase shunt active power filter control circuit under balanced and unbalanced load condition is developed. The developed control circuit is based on the Multi-Variable Filter (MVF) which is used to remove the harmonic components of the load current (Harmonic) and gives the fundamental part. The effectiveness of the proposed scheme is mathematically calculated and verified by MATLAB/Simulink simulation.

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