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Harmonic compensation of HVDC rectifier using shunt active filter

In recent years, the issue of harmonic compensation has got considerable attention. This paper presents harmonic compensation of HVDC rectifier using shunt active filter. The filtering technique reduces harmonics in current and voltage and also improves total harmonic distortion of system. Simulation model was developed in MATLAB/ Simulink environment. Results are obtained for a resistive and inductive load and analysis of harmonic distortion is done at different firing angle values of thyristor used in HVDC rectifier. Frequency domain analysis is also shown to achieve optimum results.