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A hybrid powertrain which composes of multiple power sources including two proton exchange membrane fuel cell (PEMFC) systems, two batteries and two supercapacitors (SCs) is presented for 100% LF-LRV tramway with two motor units and one trailer unit. A hybrid system model of LF-LRV tramway is developed, and then a coordination control approach is proposed to coordinate the power demand to each power...
Pure Electric vehicle power supply system includes two types: single power supply system and hybrid power supply system. Control scheme of EV's hybrid power supply system is especially important since it determines system performances and life of every power supply and further impacts on EV's whole performances. As a key technology of electric vehicles (EV), researches of electric power system have...
The use of Solid Oxide Fuel Cells (SOFCs) continues to spread in Japan. This paper clarifies the simple linear relation between their gas consumption and their generated electric power. This means that the total amount of gas consumption only depends on the total electric power, even if plural SOFCs operate in parallel. The total gas amount doesn't depend on SOFC power distribution. To realize parallel...
Hybrid power systems (HPS) are becoming increasingly important as they leverage complementary features of heterogeneous power sources and energy storage to achieve efficient and clean power generation. The ship-board integrated power systems (IPS) and hybrid land vehicles for military applications are representative examples of HPS. The requirements of survivability necessitates real-time failure...
Micro CHP (combined heat and power) systems, as examples of decentralized energy systems, will play a central role in the future energy supply. This study, based on technical and economic factors, compares different micro CHP systems. A market-analysis, in Germany, revealed five different micro CHP technologies from different manufacturers. Eight representative micro CHP plants were chosen from these...
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