Simulation and Optimization of the Longitudinal Dynamics of Parallel Hybrid Railway Vehicles
In this paper, a basic simulation of the longitudinal dynamics of parallel hybrid railway vehicles is presented, which is used for an optimization of the operating strategy. An internal combustion engine, the primary power source, is supported by an electrical energy storage system with motor and generator allowing for joint usage of both energy sources. For the main components of the power train, interface variables representing power flow and energy, are defined. A combined quadratic performance index is introduced for a system optimization. Here, an optimization of fuel consumption and emissions is considered for a parallel hybrid structure to minimize the chosen performance index.
KeywordsHybrid Railway Vehicles Emissions Optimization Fuel Consumption longitudinal Dynamics
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