Application of a Non-carrier-Based Modulation for Current Harmonics Spectrum Control during Regenerative Braking of the Electric Vehicle

Marcin Steczek, Piotr Chudzik and Adam Szeląg
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Marcin Steczek: Faculty of Electrical Engineering, Institute of Electrical Power Engineering, Warsaw University of Technology, 00-661 Warszawa, Poland
Piotr Chudzik: Faculty of Electrical Engineering, Institute of Automatic Control, Lodz University of Technology, 90-924 Łódź, Poland
Adam Szeląg: Faculty of Electrical Engineering, Institute of Electrical Power Engineering, Warsaw University of Technology, 00-661 Warszawa, Poland

Energies, 2020, vol. 13, issue 24, 1-21

Abstract: The regenerative braking of railway vehicles is widely used in DC railway systems all over the world. This mode of operation provides an opportunity to reuse part of the energy consumed by vehicles, and makes the railway system more energy efficient. During regenerative braking, not only energy management is an issue, but also Electromagnetic Compatibility EMC issues, such as interference of generated current harmonics with a railway signaling system. In this paper, the selective harmonic elimination modulation technique (SHE-PWM) was introduced to the traction drive with a three-level inverter to reduce specific catenary current harmonics generated during regenerative braking. The simulation model of a traction drive appropriate for harmonics analysis was proposed and verified by the measurements in the low-power laboratory drive system. The model was re-scaled to the 3 kV DC system for further study. The model of an induction motor with electromotive force and the method of its calculation was proposed. Furthermore, an analysis of the braking chopper operation was carried out. The asymmetric control of braking chopper was proposed to reduce the current harmonics below limits during chopper operation.

Keywords: selective harmonic elimination; regenerative braking; railway vehicle; EMC (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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