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

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


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Yıldırım, Doğan; Akşit, Mehmet Hakan; ÇADIRCI, IŞIK; Ermiş, Muammer (2022-5-01)
The design and development of a high-performance 165 kVA, 750 V DC all-silicon carbide (SiC) traction converter for new generation light rail transportation systems (LRTSs) are described. In the design of the traction motor drive, the efficiency of the overall system is maximized and the line current harmonic content of the traction motor is minimized. A complete mathematical model of the physical system is derived to carry out real-time simulations and proper control of the LRTS on a real rail track. The e...
YILDIRIM, Doğan; Ermiş, Muammer; Department of Electrical and Electronics Engineering (2021-9-24)
Design methodology and development of a 165 kVA, all-silicon carbide (SiC) traction converter for new generation light rail transportation systems (LRTS) have been carried out in this thesis. Electrical, mechanical, and thermal design principles of all-SiC power MOSFET-based traction converter have been described in detail. In order to verify the produced converter, design and implementation of a full-scale physical simulator of an all-SiC traction motor drive for LRTS have been performed. A complete mathem...
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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.