一种山区通信基站供电系统设计与仿真

摘要

In light of the poor electric power quality for the communications device of mountainy base stations , a power supply mode consisted of photovoltaic cells , super-capacitors and fuel cells to construct the compound power supply system is proposed .The system can automatically select the e-lectric energy supply units to ensure the system to run steadily and reliably according to the weather condition , thus giving full play to their respective advantages and saving operation cost .The design of the overall system architecture and detail analysis of the operation modes are given while a new control strategy is proposed .In order to test the performance of the system , a simulation experiment on MATLAB/Simulink is done .The results show that the system can operate sustainably , steadily and reliably under various external conditions , and is characterized by fast speed of dynamic re-sponse and strong ability of endurance .%针对电网延伸不到或电网质量不高的山区通信基站，提出了一种实用的基站供电方式，这种供电方式采用光伏电池-超级电容-燃料电池构成复合电源系统，该系统可根据不同的天气条件选择不同的电源，最大限度地发挥各自的优势，节约运行成本，确保系统稳定可靠运行。文中重点阐述了系统总体结构的设计，并详细地分析了系统的工作模式，给出了系统的控制策略。为了验证系统的有效性，在Matlab/Simulink中搭建了一种普遍的48 V/20 A通信基站电源的仿真系统，对系统进行了仿真实验，结果表明，该系统在不同外界条件下均能持续稳定可靠运行，且具备动态响应速度快、续航能力强等特点。