| Abstract |
Two versions of a novel current injection network for low-harmonic rectifiers that apply the third harmonic current injection is proposed in this paper. The current injection networks require one inductor, two capacitors, and one 1:1 transformer with volt-ampere rating of only 0.16% of the input power. The transformer is introduced to provide control of harmonic components of the injected currents at even triples of the line frequency, resulting in significant reduction of the input current total harmonic distortion (THD). Dependence of the input current THD on the current injection network Q-factor is computed for both of the proposed current injection network versions. The THD is shown to be less than 5.125%. Analytically obtained results are experimentally verified. |
