燃料电池动力系统集成化研究
发布时间：2019-01-13 21:09
【摘要】：燃料电池系统作为一种高效清洁的动力装置,其集成化研究,对未来远程UUV动力系统的设计与发展有着至关重要的意义。本文针对UUV的动力设计要求,利用燃料电池混合动力的设计方法,设计了 10kW燃料电池主堆,10kW蓄电池辅助电源,并携带固体储氢与液氧的整体方案。经过理论计算,该方案设计的UUV动力性能优于单纯使用20kW燃料电池或20kW锂离子电池。以此整体方案为基础,设计了 10kW燃料电池系统,为了集成化的考虑分别采用定压闭式水循环与尾气循环自加湿。针对系统的构成及其对流量、温度、压力等关键参数的要求,对系统管路,电磁阀,恒温阀,换热器等组件进行了计算及选型,并对燃料循环喷射器的设计进行了初步研究。结合系统选型的实际尺寸,设计了 10kW燃料电池系统的集成化模型。以DSP为硬件基础,设计集成化燃料电池动力系统的控制系统,相比PLC,在完成同样控制要求的前提下,其体积更小,更适合集成化要求。利用CCStudio,对DSP的信号采集,通信与信号输出进行程序设计,利用串口实现DSP与计算机的通信,并通过Lab VIEW编写的控制界面在计算机上实现系统状态的实时显示与控制。利用现有条件与实验台架进行了实验验证,实验结果表明,闭式循环水系统可以实现气水压力的自适应,在无外部加湿的条件下尾气自加湿可以使电堆稳定运行,该方法可减少控制系统的复杂程度,有利于系统集成化。为了进一步验证方案及选型的可行性,利用选型器件的实际参数,在AMEsim软件中建立系统模型,对设计的集成化UUV燃料电池系统开机,运行负载波动进行了仿真,系统可以稳定安全的运行。并分析了过量系数对系统加湿情况的影响,以及燃料循环喷射器在燃料电池系统中的工作特性。
[Abstract]:As a kind of high efficiency and clean power system, the integrated research of fuel cell system is of great significance to the design and development of remote UUV power system in the future. According to the power design requirements of UUV, the main reactor of 10kW fuel cell, the auxiliary power supply of 10kW battery, and the whole scheme of solid hydrogen storage and liquid oxygen are designed by using the design method of hybrid power of fuel cell. The theoretical calculation shows that the dynamic performance of UUV designed by this scheme is superior to that of 20kW fuel cell or 20kW lithium-ion battery. Based on the whole scheme, 10kW fuel cell system is designed. For the sake of integration, the closed water cycle at constant pressure and the self-humidification of tail gas cycle are adopted respectively. According to the composition of the system and its requirements for the key parameters such as flow rate, temperature and pressure, the system pipeline, solenoid valve, thermostatic valve, heat exchanger and other components are calculated and selected, and the design of fuel cycle injector is studied preliminarily. The integrated model of 10kW fuel cell system is designed according to the actual size of system selection. Based on DSP, the control system of integrated fuel cell power system is designed. Compared with PLC, it is smaller in volume and more suitable for integration than PLC,. The signal acquisition, communication and signal output of DSP are programmed by CCStudio, the communication between DSP and computer is realized by serial port, and the real-time display and control of system state are realized by the control interface written by Lab VIEW. The experimental results show that the closed circulating water system can realize the self-adaptation of gas-water pressure, and the self-humidification of tail gas can make the stack run stably without external humidification. This method can reduce the complexity of the control system and is beneficial to the integration of the system. In order to further verify the feasibility of the scheme and type selection, the system model is established in AMEsim software by using the actual parameters of the device selection, and the load fluctuation of the integrated UUV fuel cell system is simulated. The system can run stably and safely. The influence of excess coefficient on system humidification and the working characteristics of fuel cycle injector in fuel cell system are analyzed.
【学位授予单位】：哈尔滨工程大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM911.4
本文编号：2408402
[Abstract]:As a kind of high efficiency and clean power system, the integrated research of fuel cell system is of great significance to the design and development of remote UUV power system in the future. According to the power design requirements of UUV, the main reactor of 10kW fuel cell, the auxiliary power supply of 10kW battery, and the whole scheme of solid hydrogen storage and liquid oxygen are designed by using the design method of hybrid power of fuel cell. The theoretical calculation shows that the dynamic performance of UUV designed by this scheme is superior to that of 20kW fuel cell or 20kW lithium-ion battery. Based on the whole scheme, 10kW fuel cell system is designed. For the sake of integration, the closed water cycle at constant pressure and the self-humidification of tail gas cycle are adopted respectively. According to the composition of the system and its requirements for the key parameters such as flow rate, temperature and pressure, the system pipeline, solenoid valve, thermostatic valve, heat exchanger and other components are calculated and selected, and the design of fuel cycle injector is studied preliminarily. The integrated model of 10kW fuel cell system is designed according to the actual size of system selection. Based on DSP, the control system of integrated fuel cell power system is designed. Compared with PLC, it is smaller in volume and more suitable for integration than PLC,. The signal acquisition, communication and signal output of DSP are programmed by CCStudio, the communication between DSP and computer is realized by serial port, and the real-time display and control of system state are realized by the control interface written by Lab VIEW. The experimental results show that the closed circulating water system can realize the self-adaptation of gas-water pressure, and the self-humidification of tail gas can make the stack run stably without external humidification. This method can reduce the complexity of the control system and is beneficial to the integration of the system. In order to further verify the feasibility of the scheme and type selection, the system model is established in AMEsim software by using the actual parameters of the device selection, and the load fluctuation of the integrated UUV fuel cell system is simulated. The system can run stably and safely. The influence of excess coefficient on system humidification and the working characteristics of fuel cycle injector in fuel cell system are analyzed.
【学位授予单位】：哈尔滨工程大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM911.4
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