This paper is a conceptual design and application feasibility analysis of a hybrid traction system for improvement of acceleration and deceleration performance of urban and metropolitan railway. Due to economic development in the metropolitan area, the commuting time and scheduled speed have decreased. This has greatly reduced speed competitiveness and significantly reduced the modal share rate. To solve these problems, a study was conducted to improve the performance of acceleration and deceleration as a means of express service of urban and metropolitan railway. A conceptual design of a hybrid type traction motor, which can be applied to both the motor car and trailer car for enhanced acceleration and deceleration, was carried out. A permanent magnet synchronous motor with better efficiency and output density than those of an induction motor is applied to the motor car and a linear induction motor is suggested for application to the trailer car. In conclusion, the proposed hybrid type traction motor, which converts all cars to motor cars, improve the acceleration and deceleration performance.
- Linear induction motor
- Permanent magnet synchronous motor
- Urban and metropolitan railway