열차의 점착성능 개선을 위한 병렬전동기 제어

The parallel connected induction motors control for improvement of adhesion performance of trains

In trains driven by electric motor, when the adhesion force between rail and driving wheel decreases suddenly, the electric motor coach has slip phenomena. The characteristics of adhesion force coefficient are strongly affected by the conditions between rails and driving wheels, such as moisture, dust, and oil on the rails and so on. This paper proposes the vector control structure for the improved re-adhesion control with paralleled control of induction motors under the sudden variation of the adhesion force.