Three-Phase Shunt Active Filter with Compensation of Reactive Power


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Abstract


This paper presents an adaptive control of a three-phase voltage converter used as active filter to eliminate the harmonic currents absorbed by non-linear loads. After modeling the system (converter - interconnection inductance to the electrical network - DC bus capacitor), the controller design is based on application of Lyapunov function stability. The main objective of the control is to ensure the compensation of harmonic currents and reactive power. The secondary objective is to regulate the DC bus voltage. The controller discussed in this work is an adaptive version that takes into account variations of losses in the power switches and the losses in the interconnection inductance with network. Results of simulation are presented to illustrate the performances of the proposed command
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Keywords


Shunt Active Filter; Instantaneous Power Theory; Lyapunov Function; Nonlinear Loads; Total Harmonic Distortion THD

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References


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