India has introduced its first fully indigenous zero-emission propulsion system for locomotives, developed by Concord Control Systems Limited through its Advanced Rail Division, ETInfra.com informs.
Powered by Lithium Iron Phosphate (LFP) batteries, the system incorporates a DC chopper-based drive architecture. It delivers up to 800A peak current to the traction motors and eliminates idling losses common in diesel locomotives by activating only when power is required. According to the developer, this approach reduces fuel consumption and emissions while improving energy efficiency.
All core components of the system—including the chopper, Vehicle Control Unit (VCU), driver interface, sensors, and control electronics—were designed and manufactured domestically, with only a small portion of semiconductors sourced externally. The integration includes CAN-based communication and fibre-optic signal transmission, with the system offering remote diagnostics and predictive maintenance through an onboard Remote Monitoring System (RMS).
Digital driver displays, video surveillance (CCTV/DVR), and embedded safety functions are included as standard. The conversion sets a local benchmark for upgrading existing diesel-powered locomotives to zero-emission configurations and aligns with Indian Railways’ 2030 electrification target.
This development introduces a scalable option for retrofitting diesel fleets on non-electrified routes where conventional electrification may not be viable in the short term.
