Line current harmonics of three-level neutral-point-clamped electric multiple unit rectifiers: analysis, simulation and testing

被引：31
作者：
Song Kejian [1 ]
Wu Mingli [1 ]
Agelidis, Vassilios Georgios [1 ,2 ]
Wang Hui [1 ]
机构：
[1] Beijing Jiaotong Univ, Sch Elect Engn, Beijing 100044, Peoples R China
[2] Univ New S Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia
来源：
IET POWER ELECTRONICS | 2014年 / 7卷 / 07期
关键词：
PWM power convertors; Fourier series; voltage control; railway rolling stock; harmonic analysis; harmonic spectra; AC supply currents; electric multiple units; EMU; three-level neutral-point-clamped converters; high-order harmonics; three-level phase-opposition disposition pulse-width modulation; double Fourier series; contour plot; carrier phase-shift control; DC voltage controller; low-order harmonics; CRH380AL; testing railway line; rolling stocks plant; line current harmonics; distance; 9; km; PWM; SYSTEM;
D O I：
10.1049/iet-pel.2013.0683
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The harmonic spectra of the AC supply currents of electric multiple units (EMUs) employing three-level neutral-point-clamped converters are discussed in this study. The analytical expressions of high-order harmonics because of high-frequency three-level phase-opposition disposition pulse-width modulation are derived by using double Fourier series and a contour plot in a two-dimensional plane. The carrier phase-shift control to cancel some of the high-order harmonics when two or more converters are interlaced is validated. The impact of converter's DC voltage controller on low-order harmonics is formulated. The harmonic spectra are verified by computer simulations and through actual measured data taken at lower train speed and rated power from an EMU of the CRH380AL and tested on a 9 km long testing railway line in a purpose built rolling stocks plant.
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收藏
页码：1850 / 1858
页数：9
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