engleski

Power converter circuits for recuperation of the regenerative braking energy in rail vehicles

Electric rail transport offers a sustainable development in the transport sector with regard to an increasing urbanization and adverse climate changes. Due to rising energy costs, there is also a need for adequate energy saving solutions in this type of transport. In order to save energy and increase performance of the vehicle the recuperation of regenerative braking energy solution is used. The stored energy could be used to increase performance and energy efficiency during acceleration and even enable autonomous drive. This paper considers storing of regenerative braking energy of rail electric vehicles in lithium-ion batteries and supercapacitors, installed on the vehicle. Discussed power converters' topologies perform energy conditioning and optimal energy management between vehicle’s storage, power train and power line, during traction, braking and driving with constant speed. Simulation models of typical power converters which are used for this purpose have been developed and simulation experiments were conducted. The comparative analysis of simulation results highlights the advantages and disadvantages of the simulated converters and the observed types of energy storage with respect to the set criteria.

regenerative braking ; topologies ; railway vehicles ; energy storage elements ; DC/DC converters

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