Full-Scale Physical Simulator of All SiC Traction Motor Drive With Onboard Supercapacitor ESS for Light-Rail Public Transportation

Date

2020-08-01

Author

Yildirim, Dogan
Aksit, Mehmet Hakan
Yolacan, Cem
Pul, Tevfik
Ermis, Cezmi
Aghdam, Behrang H.
ÇADIRCI, IŞIK
Ermiş, Muammer

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This article deals with the design and laboratory implementation of a full-scale physical simulator of an all-silicon carbide (SiC) traction motor drive for light-rail transit systems (LRTS) with onboard supercapacitor energy storage system (ESS). It consists of a pulsewidth modulation (PWM) rectifier representing the 750 V dc catenary line, a three-phase two-level PWM traction inverter to drive a three-phase squirrel-cage traction motor, a flywheel coupled to the motor shaft to represent the dynamic behavior of the transportation vehicle, a loading generator connected to the grid via a dc-link converter with active front-end, and a supercapacitor ESS containing a bidirectional dc-dc converter supplied from the common dc link. The PWM rectifier, a traction inverter, and a bidirectional dc-dc converter are all SiC power MOSFET-based converters for high efficiency and high power density. A physical simulator is a valuable tool in the design and testing of all SiC converters. It is equipped with software programs for a catenary model, rail track model, and vehicle model, and permits the performance verification of various control, modulation, and energy-saving strategies. The physical simulator system developed in this article also allows the performance verification of a vehicle formation on a prespecified real track and evaluation of benefits of the onboard supercapacitor ESS in real time.

Subject Keywords

Traction motors, Silicon carbide, Mathematical model, Inverters, Inverters, Supercapacitors, Light rail systems, Pulse width modulation, Light-rail transit system (LRTS), Physical simulator, Silicon carbide (SiC) power MOSFET, Supercapacitor energy storage system (ESS), Traction inverter

URI

https://hdl.handle.net/11511/32115

Journal

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS

DOI

https://doi.org/10.1109/tie.2019.2934086

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

D. Yildirim et al., “Full-Scale Physical Simulator of All SiC Traction Motor Drive With Onboard Supercapacitor ESS for Light-Rail Public Transportation,” IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, pp. 6290–6301, 2020, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32115.