Abstract
The single-phase PWM rectifier has a second harmonic current and a corresponding ripple voltage on the DC side. The low-frequency harmonic current is usually eliminated by a resonant circuit composed of a large-capacity capacitor and an inductor in the DC bus, but the LC brand reduces the power density of the entire system. To this end, a secondary pulsation active power filter based on a bidirectional boost–buck converter (bidirectional buck/boost) is proposed to suppress the DC bus voltage secondary pulsation. The compensation current equation when the filter fully compensates the pulsating power is derived, and a voltage loop and current loop control strategy is proposed based on this. Based on MATLAB/Simulink simulations and experiments demonstrate the effectiveness of the scheme, it can also reduce the volume and improve the power density of the system.
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Acknowledgements
This work is supported by the National Key Research and Development Program (2017YFB1200802-01).
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Zhang, Y., Peng, F., Xu, Q., Shen, L., Chen, J. (2020). Research on a Secondary Pulsation Active Power Filter for Single-Phase PWM Rectifier. In: Jia, L., Qin, Y., Liu, B., Liu, Z., Diao, L., An, M. (eds) Proceedings of the 4th International Conference on Electrical and Information Technologies for Rail Transportation (EITRT) 2019. EITRT 2019. Lecture Notes in Electrical Engineering, vol 638. Springer, Singapore. https://doi.org/10.1007/978-981-15-2862-0_14
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DOI: https://doi.org/10.1007/978-981-15-2862-0_14
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