A Technique for Improving Input Current Zero-crossing Distortion of Boost PFC Converters for Airborne System
نویسندگان
چکیده
In airborne AC power system, input current may distort at the vicinity of input voltage zero crossing in Power Factor Correction (PFC) converter. This paper is analyzed the essential causes of the zero-crossing distortion and points out that the major causes are the value of inductor and the phase displacement between input current and input voltage. By adopting parallel interleaving technique, it can decrease the inductor and increase the equivalent switching frequency, improve input current zero-crossing distortion effectively. The effectiveness of this method is verified by simulation and experiments. The experiment results are demonstrated that it can make input current harmonics meet relevant standards so it can be applied in airborne system. Key wordsAirborne System; Zero-crossing Distortion; Value of Inductor; Phase Displacement; Parallel Interleaving
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