HARMONIC CANCELLATION IN POWER SYSTEM USING MULTIPULSE AC-DC CONVERTERS

Power quality issues have become a prominent concern within modern electrical systems due to the escalating reliance on sensitive electronic equipment and the integration of renewable energy sources. Sources contributing to these disturbances, encompassing power grid irregularities, switching activities, and nonlinear loads, are thoroughly explored. Using various ideas and techniques, a lot of effort has been done in recent years to reduce total harmonic distortion. Filtering or cancellation are two techniques for harmonic treatment. In this section, we discuss employing a multi-pulse AC to DC conversion strategy to reduce total harmonic distortion. Power quality can be enhanced using multiple pulse converters, and in this research, 6, 12, 18, 24 pulse converters have been simulated and modeled using the MATLAB/Simulink programme. Each one of these converters produces 6-pulse AC to DC conversion, so consistent phase-shift is needed to build many sets of 6-pulse system. As a result, 12-, 18-, 24-, and 30-pulse systems have been created with the necessary phase-shifting angle. Total harmonic distortion (THD) in current supply and ripples present in DC type voltage are reduced, improving the performance of multi-pulse converters[5].