基站备用电源用燃料电池能量管理单元设计

Design of Fuel Cell Energy Management Unit for Base Station Backup Power

针对基站备用电源系统在使用过程中存在的短板及燃料电池良好的应用前景,提出一种燃料电池能量管理单元的设计方法,完成基站备用电源在市电、铅酸电池和燃料电池之间的能量变换管理,实现负载的无污染可靠不间断供电;能量管理单元由功率主电路、控制电路、霍尔传感器和软件等组成,从硬件设计角度分别对各主要功能电路及关键器件的设计进行了分析,并对能量管理策略及软件实现过程进行详细说明;研制的试验样机性能稳定,输出电压误差小于0.15 V,功率误差小于0.05 kW,各项指标满足通信电源标准要求;燃料电池作为一种绿色、高效、节能的发电设备,随着技术的发展,该管理单元在基站备用电源领域有着很好的应用前景。

Aiming at the shortcomings of the base station backup power system in the process of using and the good application prospects of fuel cells,a design method of fuel cell energy management unit is proposed to complete the energy conversion management for the base station backup power supply among utility power,lead-acid batteries and fuel cells.Power supply for the load is achieved pollution-freely,reliable and uninterrupted.The energy management unit is composed of power main circuit,control circuit,Hall sensor and software,the design of each main functional circuits and key components are analyzed from the perspective of hardware design,and the energy management strategy and software implementation process are described exhaustively.The developed test prototype has the stable performance,the output voltage error is less than 0.15 V,the power error is less than 0.05 kW,and all parameters meet the requirements of the communication power supply standard.Fuel cell is taken as a green,high-efficiency and energy-saving power generation equipment,and the management unit has a good application prospect in the field of base station backup power with the development of fuel cell technology.