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In order to achieve better energy saving effect of the super-capacitor energy storage system (SC-ESS), an on-line optimization control strategy is proposed in this paper. Firstly, the model of urban rail traction power supply system with super-capacitor energy storage system is established, and the working principle of ESS is analyzed. Then the paper analyzes the influence of train braking characteristics...
On purpose of high efficient energy recycle and brake security, the electric energy consuming brake is applied in the hybrid electric vehicle. The energy consuming brake is a kind of electric brake process, which is realized by motor, brake resistor and its heat dissipation subsystem. In this study, the calculations and numerical simulation models of the brake resistor and its cooling subsystem of...
Electric brake resistors are well known in the domain of power electronics, railway or elevator technology to guarantee electric braking or to damp high electric power peaks. The generated heat energy, however, is usually dissipated. This work deals with the potential of an automotive application of the electric brake resistor to enable brake energy regeneration (recuperation) also at low temperatures...
Large-scale permanent magnet generators with full power electronic converters are of increasing interest to many wind turbine manufacturers. These systems offer an efficient and reliable solution for offshore and low wind sites. However, the advantages of these generators necessitate a system design approach when selecting a power electronic drive and designing to meet the toughest grid code elements...
Advanced thermal management system (TMS) has the potential to increase the life of the cooling system components as well as decrease fuel consumption and carbon emissions. In the hybrid electric armored vehicle (HEAV), the combination of prime power and stored energy powers the vehicle driving system and advanced weapons subsystems. Because of the complicated energy transfer and the substantial heat...
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