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2016 International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC)
In this paper, a modelling method of a 25 kV-50 Hz railway line, in a frequency range from 0 to 5 kHz, is presented. A model is proposed to quantity current and voltage harmonics generated by traction converters in different points of the network. An equivalent circuit, taking into account the skin effect for time-domain simulations, is also proposed. A new model, based on state space representation...
A method that enables evaluation on new construction machine concepts, such as diesel-electric hybrid construction machines, is presented. The method is unbiased from control engineer experience, development time and tuning of algorithms for each concept. The impact of inconsistent operator behavior and deviations in complete machine tests are also minimized. The method is based on dynamic programming...
This paper presents the design of an efficient energy management strategy (EMS) for fuel cell hybrid vehicle (FCHV). The studied hybrid system is composed of fuel cell/ultracapacitor (FC/UC) source allowing increasing both the power capability and the energy capacity of FCHV. The designed EMS uses a wavelet approach to share the power flow between energy generation by sources and traction load. This...
The paper presents the state of the art and the future trend of the Energy Management. The “Energy Management” term is often used to indicate one or more techniques adopted in the new more electric aircraft, to avoid the generator overload. The designer can use four different approaches, or a combination of them to reduce the over sizing of the generators. The first method regulate the energy exchanged...
Network reconfiguration is the key technology to realize the autonomous operation and safety enhancement in aircraft power distribution system. The goal of reconfiguration is to achieve maximal power supply under different fault conditions. This paper proposes a power priority based reconfiguration algorithm. To verify the validity of the algorithm, an aircraft power distribution system is discussed...
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