Topological research and comparison of low harmonic input three-phase rectifier with passive auxiliary circuit

Abstract

A novel passive correction approach is proposed in this paper. By adding a passive auxiliary circuit to the ac side of the rectifier with dc-side C filter, the input currents and power factor can be improved. According to distinctive configurations of the auxiliary circuits, eight low harmonic input rectifier topologies are derived. Three rectifier topologies with better comprehensive performance are deeply analyzed and compared in operation principle, auxiliary circuit design and characteristic discussion. Experimental results from the prototypes are shown to confirm the validity of the analysis and the feasibility of the proposed approach.

Simulation Study of Harmonics and Reactive Power in Three-Phase Full-Bridge Controlled Rectifier Circuit with Resistance-Inductance Load

“…Power electronic devices have become the main harmonics sources of power system and consume large amounts of reactive power [1][2][3][4][5][6]. Therefore, to analysis and simulate the harmonics contents and power factor of power electronic devices is becoming an important aspect of harmonics and reactive power research.…”