Harmonic Analysis of Single-Phase Neutral-Point-Clamped Cascaded Inverter in Advanced Traction Power Supply System Based on the Big Triangular Carrier Equivalence Method

Pengcheng Han, Xiaoqiong He, Yi Wang, Haijun Ren, Xu Peng and Zeliang Shu
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Pengcheng Han: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China
Xiaoqiong He: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China
Yi Wang: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China
Haijun Ren: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China
Xu Peng: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China
Zeliang Shu: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China

Energies, 2018, vol. 11, issue 2, 1-16

Abstract: An advanced traction power supply system based on a single phase neutral-point-clamped (NPC) cascaded inverter is studied. The big triangular carrier equivalence method in double coordinate system is proposed, which can reduce one coordinate system, thus simplifying the calculation. Based on the big triangular carrier equivalence method, the harmonic characteristics of a single phase NPC cascaded inverter are calculated by double Fourier transform and voltage harmonics expressions of 5-level, 9-level and 13-level output waveforms are derived. Finally, the performance and calculated results of the proposed method were verified by simulations and experiments. The result provides a theoretical basis for further studies on traction network resonance.

Keywords: advanced traction power supply system; big triangular carrier equivalence method; double Fourier transform; harmonic analysis (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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