A SVPWM method with capacitor voltages balancing control for single phase cascaded h-bridge rectifiers

被引：0
作者：
Wang S. [1 ]
Song W. [1 ]
Feng X. [1 ,2 ]
机构：
[1] School of Electrical Engineering, Southwest Jiaotong University, Chengdu
[2] State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu
来源：
Song, Wensheng (songwsh@swjtu.edu.cn) | 1600年 / Science Press卷 / 38期
关键词：
Capacitor voltages balancing control; Cascaded H-bridge rectifiers; Offset component; Single phase; SVPWM;
D O I：
10.3969/j.issn.1001-8360.2016.07.004
中图分类号：
学科分类号：
摘要：
With the lightweight requirement of high speed trains, power electronic transformer with multilevel converter as its key component to replace bulky power frequency traction transformer has become a research focus in the field of power traction drive system. An arbitrary level space vector pulse width modulation(SVPWM) algorithm was proposed for single-phase cascaded H-bridge front-end rectifiers(CHBR). The calculation method of the duty time of each basic vector was given. The optimization of vector duty sequence resulted in lower modulation algorithm induced line current distortion, and the consistent switching commutation times for each power switching device. The modulation algorithm itself would not cause unbalance of DC-link capacitor voltages. An optimized SVPWM algorithm with injecting time offset component to adjust the redundant basic vector's duty times was presented to solve the unbalance of CHBR DC-link capacitor voltages caused by other reasons. The feasibility and effectiveness of the SVPWM algorithm with DC-link capacitor voltages balancing control were verified by the computer simulations and hardware-in-the-loop experiments. © 2016, Editorial Office of Journal of the China Railway Society. All right reserved.
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页码：26 / 33
页数：7
相关论文
共 24 条
[1]  
Drabek P., Peroutka Z., Pittermann M., Et al., New configuration of Traction Converter with Medium-frequency Transformer Using Matrix Converters, IEEE Transactions on Industrial Electronics, 58, 11, pp. 5041-5048, (2011)
[2]  
Dujic D., Kieferndorf F., Canales F., Et al., Power Electronic Traction Transformer Technology, IEEE 7th International Power Electronics and Motion Control Conference(ECCE), pp. 636-642, (2012)
[3]  
Dujic D., Zhao C., Mester A., Et al., Power Electronic Traction Transformer-low Voltage Prototype, IEEE Transactions on Power Electronics, 28, 12, pp. 5522-5534, (2013)
[4]  
Wang L., Qi F., Novel Carrier Phase-shifted SPWM for Cascade Multilevel Converter, Proceedings of the CSEE, 30, 3, pp. 28-34, (2010)
[5]  
Wang B., Wang W., Du H., Et al., A Novel Single-supply Cascaded Multilevel Inverter, Proceedings of the CSEE, 33, 30, pp. 10-17, (2013)
[6]  
Townsend C.D., Summers T.J., Betz R.E., Impact of Practical Issues on the Harmonic Performance of Phase-shifted Modulation Strategies for a Cascaded H-bridge StatCom, IEEE Transactions on Industrial Electronics, 61, 6, pp. 2655-2664, (2014)
[7]  
Leon J.I., Vazquez S., Kouro S., Et al., Unidimensional Modulation Technique for Cascaded Multilevel Converters, IEEE Transactions on Industrial Electronics, 56, 8, pp. 2981-2986, (2009)
[8]  
Leon J.I., Vazquez S., Portillo R., Et al., Two-dimensional Modulation Technique with DC Voltage Control for Single-phase Two-cell Cascaded Converters, International Conference on Industrial Technology (ICIT), pp. 1365-1370, (2010)
[9]  
Wang C., Zhang G., Wang J., Et al., A Novel Modulation Method for Fast Balancing DC-link Capacitor Voltages of Cascaded H-bridge Rectifier, Transactions of China Electrotechnical Society, 28, 8, pp. 120-127, (2013)
[10]  
Renge M.M., Suryawanshi H.M., Three-dimensional Space-vector Modulation to Reduce Common-mode Voltage for Multilevel Inverter, IEEE Transactions on Industrial Electronics, 57, 7, pp. 2324-2331, (2010)
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