State-of-the-art review of railway traction motors for distributed traction considering South Korean high-speed railway

Abstract

This paper presents a critical review of traction motors used for distributed traction (DT) applications in high-speed railways (HSR). The motor topologies that can be used for DT-HSR are presented. The advantages and disadvantages of each motor in terms of structural and electromagnetic performance are discussed from the perspective of motor design. A survey of the advancement of the HSR industry in South Korea is presented, and the required torque–speed profile for the HSR traction motors for the South Korean railway is studied. Along with the electromagnetic design, detailed structural modeling constraints such as the framing design, slot insulation, end-winding potting, and slot wedge modeling are explained.

Keywords

• Distributed traction
• Electromagnetic modeling
• High-speed railway
• Structural design
• Traction motors