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In order to bring the simulation system closer to the actual locomotive run properties, ease to observe locomotive system response in real-time. The fuel cell hybrid locomotive system established in this paper, consists of 150 kW proton exchange membrane fuel cell (PEMFC) power generation system, DC/DC converter, battery energy store system, three-phase asynchronous traction motor, etc. And designs...
This paper attempts to study the effect of energy management strategy based on state machine on the performance of air-cooled fuel cell-battery hybrid system, for which the hybrid power system test platform composed of air-cooled fuel cell, lithium battery and DC converter was built. The reliability and stability of the hybrid system and the effectiveness of the energy management strategy based on...
As one of the distributed power sources, fuel cell is one of the most green energy sources. The power generation system has become the focus of the research, which has been used in many fields. According to the real running characteristics of the hybrid locomotive, the hybrid locomotive system consists of 150 kW proton exchange membrane fuel cell (PEMFC) power generation system, DC/DC converter, battery...
In order to analyze the relation between the whole efficiency of hybrid system and the total energy loss, this paper acquired the efficiency curve of fuel cell system and the efficiency curve of battery system through theoretical calculation and experimental test. This paper proposed an energy management strategy based on dynamic following coefficient (ECMS_DFC) which could maintain the whole efficiency...
In this paper, a high-efficient and viable energy management strategy for PEMFC-battery hybrid system is proposed to coordinate different power sources according to their natural characteristics. It is also used to avoid rapid and frequent fluctuation of PEMFC output power to get a high efficiency and long service time of hybrid system. The developed system is composed of high-power polymer electrolyte...
Fuel cell hybrid tramway has gained increasing attention recently and energy management strategy (EMS) is one of its key technologies. A hybrid tramway power system consisting of proton exchange membrane fuel cell (PEMFC) and battery is designed in the MATLAB /SIMULINK software as basic for the energy management strategy research. An equivalent consumption minimization strategy (ECMS) for hybrid tramway...
In this paper, a fuel cell/battery hybrid power scaled-system for a low floor light rail vehicle (LF-LRV) is built, which consists of proton exchange membrane fuel cell (PEMFC) system, battery bank, DC/DC converters and energy management configuration. In order to avoid the transients and rapid changes of power demand, and achieve high efficiency without degrading the mechanism performance for an...
In this paper, an energy management system is developed for fuel cell/supercapacitor hybrid locomotive, and an energy management strategy based on high hydrogen efficiency mode is proposed to satisfy the demand of dynamic performance of hybrid locomotive. Moreover, the energy management system is designed and is verified by reduced-scale experiments. The results demonstrate that the proposed energy...
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...
In order to enhance the fuel economy of hybrid vehicle and increase the mileage of continuation of journey, a fuzzy logic control is utilized to design energy management strategies for fuel cell/battery (FC+B) hybrid vehicle and fuel cell/battery/ultra-capacitor (FC+B+UC) hybrid vehicle. The models of hybrid vehicle for FC+B and FC+B+UC structure are developed by electric vehicle simulation software...
Electric vehicle not only is an available solution to energy crisis and environmental pollution, but also meets the demands for fuel economy and emission standard. After discussing the structural features of different types of electric vehicles, this paper proposes several energy management strategies for each type, and looks into the future of electric vehicle development.
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