DocumentCode :
3278118
Title :
Solutions and experimental verification of bipolar selected harmonics elimination PWM waveforms Applied in control system of induction machine
Author :
Cong, Wei ; Zhao, Feng ; Guo, Xinhua ; Wen, Xuhui ; Wang, Yongxing
Author_Institution :
Inst. of Electr. Eng., Chinese Acad. of Sci., Beijing, China
fYear :
2011
fDate :
15-17 April 2011
Firstpage :
6121
Lastpage :
6124
Abstract :
Selected harmonics elimination PWM (SHEPWM) strategy adopted in railway driving system promises to have better performance than other PWM strategies, such as SVPWM and SPWM. However, since SHEPWM was proposed, the calculation of switching-angle curves has been a hot research point. Up to now, many approaches have been applied and multiple solutions of SHE equations have been obtained. This paper presents a combinational approach based on mathematical software toolboxes, which is fast and convenient for engineering applications. Detailed explanation of calculating switching-angle curves is listed. Another undocumented set of switching-angle curves for N=4 is shown to confirm the proposed approach´s effectiveness. Finally, certain switching-angle curves below 60 are picked for simulation and experiments, which are both based on closed-loop vector control system of induction machines. Results prove that harmonics selected are eliminated effectively.
Keywords :
PWM invertors; asynchronous machines; closed loop systems; machine vector control; mathematics computing; railways; bipolar selected harmonics elimination PWM waveform verification; closed-loop vector control system; induction machine control system; mathematical software toolboxes; railway driving system; switching-angle curve calculation; Equations; Harmonic analysis; Induction machines; Mathematical model; Pulse width modulation; Switches; SHEPWM; induction machines; switching-angle curves; toolboxes;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electric Information and Control Engineering (ICEICE), 2011 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-8036-4
Type :
conf
DOI :
10.1109/ICEICE.2011.5777506
Filename :
5777506
Link To Document :
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