论文信息 - Analysis and design of harmonic subtracters for three phase rectifier equipment to meet harmonic compliance

Analysis and design of harmonic subtracters for three phase rectifier equipment to meet harmonic compliance

In this paper, harmonic subtracter topologies are proposed for powering three phase diode rectifier front-end switched mode converters and power supplies. Both 12-pulse and 18-pulse subtracter configurations are discussed. The proposed 18-pulse subtracter, powering three, 3-phase switch-mode power supply loads (of 40% THD each) achieves an input current THD of 7.9% with 0.17 pu VA rated auto-transformer. Analysis is presented for varying load conditions. The paper also discusses a 12-pulse high frequency harmonic subtracter, which results in smaller size and weight. A design example is included, simulation and experimental results are presented on a 10 kVA, 208 V, system.

Jaehong Hahn | Prasad Enjeti | I. J. Pitel | Moonshik Kang

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