| Abstract |
In this paper, a novel method to reduce harmonics involved in ac line
currents of a three-phase diode rectifier circuit with a smoothing reactor is proposed. This circuit consists of passive components and diodes only. It is applied to the conventional three-phase diode rectifier, and an auxiliary circuit composed of
transformers, capacitors and diodes is added. Ac line current waveforms of proposed· circuit equal to 12-step currents which correspond to the conventional 12-phase diode
rectifier. In this paper, circuit performance of the proposed method are discussed by analyzing waveforms in the circuit, and optimum parameter is derived. Then, effects on harmonics reductions can be clarified by theoretical and experimental results,
and ratings of system components are investigated. |
