Abstract
The regenerative braking energy of the train can be fed back to the medium voltage AC grid by using the high power four-quadrant converter, which has a good energy saving effect. But the traditional single-inductor filter is very large in size. In order to suppress the current harmonics, and reduce the volume and cost of the filter, the LCL filtering scheme of the large power four-quadrant converter for rail transit is introduced in this paper. The design method of LCL filter parameters is presented, and the damping control methods are studied. The filtering effect and stability of the proposed filter are verified by simulation.
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Acknowledgements
This research was supported by National Key R&D Program of China 2017YFB1200800 and the Beijing Science and Technology Commission project Z171100002117011.
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Xu, D., Zhang, G., Hao, F., Hu, Z. (2018). The LCL Filtering Scheme of High Power Four-Quadrant Converter Used in Urban Rail Transit. In: Jia, L., Qin, Y., Suo, J., Feng, J., Diao, L., An, M. (eds) Proceedings of the 3rd International Conference on Electrical and Information Technologies for Rail Transportation (EITRT) 2017. EITRT 2017. Lecture Notes in Electrical Engineering, vol 482. Springer, Singapore. https://doi.org/10.1007/978-981-10-7986-3_57
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DOI: https://doi.org/10.1007/978-981-10-7986-3_57
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