Abstract
Pulse width modulation (PWM) is one of the key control techniques of traction converter. To adapt the requirement of high-power and low-frequency feature of traction system, multi-mode PWM strategy is often used. In this paper, a multi-mode PWM strategy based on harmonic optimization is proposed, which consists of asynchronous third-harmonic injection sinusoidal PWM (THI-SPWM), 15-pulse synchronous THI-SPWM, selective harmonic elimination modulation (SHEPWM), and single-pulse modulation. As a result, switching frequency and power losses are reduced, and the harmonic feature of motor current in medium and high-frequency region is improved. Simulation and experiment results confirm the effectiveness and feasibility of the proposed strategy.
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References
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Acknowledgment
This work was supported by National Science and Technology Support Project under Grant No. 2015BAG13B01, and in part by Beijing Education Committee, Major Achievement Transformation Project for the Central Universities ZDZH20141000401.
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© 2016 Springer-Verlag Berlin Heidelberg
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Tang, J., Diao, L., Dong, K., Liu, Z., Huang, S. (2016). Multi-mode Pulse Width Modulation Strategy Based on Traction Inverter Harmonic Optimization. In: Jia, L., Liu, Z., Qin, Y., Ding, R., Diao, L. (eds) Proceedings of the 2015 International Conference on Electrical and Information Technologies for Rail Transportation. Lecture Notes in Electrical Engineering, vol 377. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-49367-0_24
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DOI: https://doi.org/10.1007/978-3-662-49367-0_24
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