Comparative Study of High Power Factor Boost Rectifiers in Continuous Conduction Mode

This work presents a comparative study of single-phase boost-based ac-dc converters applied to power factor correction. Three structures are chosen for this purpose and analyzed in detail e.g. the classical boost converter, the bridgeless boost converter, and the boost converter based on the three-state switching cell (3SSC) operating in continuous conduction mode (CCM). The aforementioned topologies are briefly revised so that they can be properly designed and validated considering results obtained from simulation tests, where aspects such as the input current, regulated output voltage, harmonic content, and dynamic response are investigated. In any energy conversion process, reduction of losses and energy efficiency become very important issues. Within this context, the development of power electronic converters with reduced cost, weight, and volume, as well as increased robustness, has been the focus of research works in both industrial and academic areas. Given the increasing option for static power converters, many problems related to low power factor and the circulation of currents with high harmonic content result, breaking several times rules that concern power quality.