Optimisation of switches in power conditioner for harmonic compensation and sag mitigation

摘要

Power conditioner provides power output with reduced electrical pollution in it. Various configurations can be formed using different converter & filter topologies. In this study, a 12-switch conditioner is compared with an 8-switch power conditioner for current reduction & compensation and voltage sag mitigation and the results are investigated. The architecture of the power controller showcases a transformer-less hybrid design filter based on 4-switch 2-leg inverter and a 6-switch dynamic voltage restorer. The test makes an effort to optimise the use of switches in power conditioner without affecting the output and thus resulting in reduction of switching losses.