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氢燃料电池系统功率对整车能耗影响分析
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作者 洪晏忠 崔垚鹏 《汽车测试报告》 2022年第19期139-141,共3页
燃料电池汽车凭借其高效率、零排放、加氢快等优势,成为实现我国能源结构变革、节能减排及汽车产业升级的重要工具。但燃料电池汽车较高的购置成本和使用成本是制约我国燃料电池汽车产业发展和推广应用的重要因素之一。该文以满载的49 ... 燃料电池汽车凭借其高效率、零排放、加氢快等优势,成为实现我国能源结构变革、节能减排及汽车产业升级的重要工具。但燃料电池汽车较高的购置成本和使用成本是制约我国燃料电池汽车产业发展和推广应用的重要因素之一。该文以满载的49 t燃料电池重卡为研究对象,通过研究燃料电池系统功率不同的两款车的续驶里程、100 km能耗、氢气消耗量的变化情况,分析燃料电池系统功率对整车能耗的影响,并依据分析结果提出整车动力系统的能量优化策略。 展开更多
关键词 燃料电池汽车 燃料电池系统功率 整车能耗
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基于DSP燃料电池三相功率逆变调节系统
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作者 李鹏 黄石生 +1 位作者 熊振兴 唐朝阳 《电力电子技术》 CSCD 北大核心 2009年第2期33-35,共3页
介绍基于燃料电池工频380V三相功率逆变转换调节系统。采用TMS320F2812型DSP芯片为控制核心,运用数字PI控制和死区补偿得到较为理想的电压电流输出波形。提高了系统输出的精度和稳定性,改善了系统动态响应特性。对样机测试实验表明,该... 介绍基于燃料电池工频380V三相功率逆变转换调节系统。采用TMS320F2812型DSP芯片为控制核心,运用数字PI控制和死区补偿得到较为理想的电压电流输出波形。提高了系统输出的精度和稳定性,改善了系统动态响应特性。对样机测试实验表明,该系统输出稳定,波形畸变量得到了较好的控制。 展开更多
关键词 逆变器 燃料电池/功率逆变调节系统 正弦脉宽调制 数字信号处理
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Research on a simulated 60 kW PEMFC cogeneration system for domestic application 被引量:3
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作者 张颖颖 余晴春 +1 位作者 曹广益 朱新坚 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2006年第3期450-457,共8页
The electrical and thermal performances of a simulated 60 kW Proton Exchange Membrane Fuel Cell (PEMFC) cogeneration system are first analyzed and then strategies to make the system operation stable and efficient are ... The electrical and thermal performances of a simulated 60 kW Proton Exchange Membrane Fuel Cell (PEMFC) cogeneration system are first analyzed and then strategies to make the system operation stable and efficient are developed. The system configuration is described first, and then the power response and coordination strategy are presented on the basis of the electricity model. Two different thermal models are used to estimate the thermal performance of this cogeneration system, and heat management is discussed. Based on these system designs, the 60 kW PEMFC cogeneration system is analyzed in detail. The analysis results will be useful for further study and development of the system. 展开更多
关键词 Proton Exchange Membrane Fuel Cell (PEMFC) COGENERATION Coordination strategy Power response Heat management
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Energy Storage System with Ultracapacitors for Thermal Underwater Glider
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作者 王乐萍 张连洪 姜军鹏 《Transactions of Tianjin University》 EI CAS 2013年第2期98-102,共5页
A power system with proton exchange membrane fuel cells (PEMFC) was designed for thermal underwater glider.Heat generated by PEMFC is used as the propulsion power of the glider,and the electricity is used in the contr... A power system with proton exchange membrane fuel cells (PEMFC) was designed for thermal underwater glider.Heat generated by PEMFC is used as the propulsion power of the glider,and the electricity is used in the control and sensor system.An electric energy storage system (ESS) is required which possesses high power density with good cycle life.Ultracapacitors which exhibit high power density and cycle life are considered as energy storage devices.Simulations based on a specific voyage condition indicate that ESS with ultracapacitors has positive effects on reducing the output power demand of PEMFC and lightening the power system.Experimental results show that the state of charge (SOC) is related to the capacitance and resistance in ultracapacitor ESS. 展开更多
关键词 thermal underwater glider proton exchange membrane fuel cell ultracapacitor energy storage system state of charge
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A Hybrid Aluminum/Hydrogen/Air CellmCommon Cathode
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作者 Lei Wang Fude Liu +3 位作者 Wentao Wang Dawei Zheng Huizhi Wang Michael Kow-Hi Leung 《Journal of Energy and Power Engineering》 2014年第11期1889-1894,共6页
Metal/Air batteries are considered to be promising electricity storage devices given their compactness, environmental benignity and affordability. As a commonly available metal, aluminum has received great attention s... Metal/Air batteries are considered to be promising electricity storage devices given their compactness, environmental benignity and affordability. As a commonly available metal, aluminum has received great attention since its first use as an anode in a battery. Its high specific energy (even better volumetric energy density than lithium) makes it ideal for many primary battery applications. However, the development of A1/Air cell with alkaline electrolyte has been lagged behind mainly due to the unfavorable parasitic hydrogen generation. Herein, we designed and constructed a novel A1/H_2/Air tandem fuel cell to turn the adverse parasitic reaction into a useful process. The system consists of two anodes, namely, aluminum and hydrogen, and one common air-breathing cathode. The aluminum acts as both the anode for the A1/Air sub-cell and the source to generate hydrogen for the hydrogen/air sub-cell. The aluminum/air sub-cell has an open circuit voltage of 1.45 V and the H_2/Air sub-cell of 0.95 V. We demonstrated that the maximum power output of aluminum as a fuel was largely enhanced by 31% after incorporating the H_2/Air sub-cell with the tandem concept. In addition, a passive design was utilized in our tandem system to eliminate the dependence on auxiliary pumping sub-systems so that the whole system remained neat and eliminated the dependence of energy consuming pumps or heaters which were typically applied in micro fuel cells. 展开更多
关键词 Al/Air battery hydrogen fuel cell passive fuel cell utilization efficiency tandem fuel cell.
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Fuel Cells as Energy Systems: Efficiency, Power Limits and Thermodynamic Behavior
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作者 S. Sieniutycz 《Journal of Energy and Power Engineering》 2011年第1期17-28,共12页
Steady-state model of a high-temperature solid oxide fuel cell (SOFC) is considered, which refers to constant chemical potentials of incoming hydrogen fuel and oxidant. Lowering of the cell voltage below its reversi... Steady-state model of a high-temperature solid oxide fuel cell (SOFC) is considered, which refers to constant chemical potentials of incoming hydrogen fuel and oxidant. Lowering of the cell voltage below its reversible value is attributed to polarizations and imperfect conversions of reactions. An imperfect power formula summarizes the effect of transport laws, irreversible polarizations and efficiency of power yield. Reversible electrochemical theory is extended to the case with dissipative chemical reactions; this case includes systems with incomplete conversions, characterized by "reduced affinities" and an idle run voltage. Efficiency drop is linked with thermodynamic and electrochemical irreversibilities expressed in terms of polarizations (activation, concentration and ohmic). Effect of incomplete conversions is modeled by assuming that substrates can be remained after the reaction and that side reactions may occur. Optimum and feasibility conditions are discussed for basic input parameters of the cell. Calculations of maximum power show that the data differ for power generated and consumed and depend on current intensity, number of mass transfer units, polarizations, electrode surface area, average chemical rate, etc.. These data provide bounds for SOFC energy generators, which are more exact and informative than reversible bounds for electrochemical transformation. 展开更多
关键词 Power limits ENTROPY engines thermal efficiency fuel cells.
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