SS4 Electric Locomotive Complete Simulation Model

The complete simulation model of the SS4 electric locomotive enables detailed analysis of current collection and overvoltage phenomena in electrified railway systems. This MATLAB/Simulink-based model implements key electrical subsystems including pantograph-catenary dynamics, traction converter circuits, and protection mechanisms using power electronics components. The simulation architecture incorporates control algorithms for regenerative braking and voltage regulation, allowing users to study locomotive behavior under various operational scenarios. Through parameterized subsystem blocks representing motor drives and transformer configurations, engineers can evaluate performance under different load conditions and network disturbances. The model's modular design facilitates integration of fault injection capabilities for testing protection systems, while its physics-based components provide accurate representation of electromagnetic transients. This simulation framework serves as both an engineering analysis tool for system optimization and a training platform for operations personnel, contributing to improved safety and efficiency in railway electrification systems.