Control Strategy for Dynamic Braking Energy Recovery of AMT Montreal Train

This paper deals on a comprehensive study of the braking regeneration energy of the Metropolitan Transportation Agency (AMT) for Montreal city supported partially by PV solar. In this paper, a control approach based on the direct flux oriented control (DFOC) is proposed for optimal energy recovery from braking operation mode. One of the best approach to decouple the motor operation during the acceleration and deceleration mode is the detection of the torque sign to activate the braker in order to store the braking energy in the battery or send it back to the grid. Finally, an additional control of sag/swell voltage in the grid side is verified to validate the robustness of motor operation. The software Matlab/Simulink is used to simulate the model.