Dynamic Braking

Hossein Dehnavifard designed, implemented, and tested code in hardware-in-the-loop (HIL) simulations and on the locomotive. He also ensured compatibility by disabling the new code for legacy locomotives in the field, making sure the updates did not affect existing systems.

In the development of the regenerative braking system for a battery-electric locomotive, Hossein leveraged his expertise in traction motor control, energy recovery, and power electronics. He designed control algorithms in Simulink to model braking behavior and optimized the transition between regenerative braking and grid braking. This work ensured that energy recovered during braking was efficiently stored in the locomotive’s battery system. Additionally, he developed C++ control logic to manage real-time braking operations, ensuring smooth transitions and compliance with safety standards. The validation phase included extensive testing to guarantee the system operated efficiently across various braking scenarios