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基站新型多系统协同供备电设计分析及应用 被引量:1
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作者 严国军 黄显良 段春旭 《通信电源技术》 2021年第17期26-30,35,共6页
移动通信基站从2G/3G/4G演进到了5G时代,网络带宽大幅度增加,基站密度与数量也随之大幅度增多,导致了网络设备对基站机房/机柜及电源数量、输出容量等需求成倍增大(供电损耗也随之成倍增大),基站机房/机柜及电源建设与节能降耗难度也随... 移动通信基站从2G/3G/4G演进到了5G时代,网络带宽大幅度增加,基站密度与数量也随之大幅度增多,导致了网络设备对基站机房/机柜及电源数量、输出容量等需求成倍增大(供电损耗也随之成倍增大),基站机房/机柜及电源建设与节能降耗难度也随之增加,在国家碳达峰与碳中和(即“双碳”)目标需求驱动下,须采取积极的措施来不断提升基站机房/机柜及电源的创新能力、供应能力、利用效率、能效比等。提出市电输入近端搭火、井盖供备电(包括地埋机房/机柜、雨水井、检查井等)、塔上风光互补供备电/补电等基站新型供备电设计,并分析提出将市电输入近端搭火后的市电输送入基站传统供备电系统、井盖供备电与塔上风光互补供备电/补电系统进行控制与管理,多个供备电系统合路后按一定比例输出,协同给基站设备供备电,解决市电引入距离过长不满足供电需求、市电无法到达或容量不足、市政容貌要求不能建机房或立柜、小型基站/微基站等站点的供备电无计可施的难题,为基站设备提供灵活配置、高效节能、稳定可靠、绿色智能的电能,构建绿色低碳通信网络。 展开更多
关键词 基站 传统供备电 多系统协同 近端搭火 风光互补 井盖
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Cylindrical spiral triboelectric nanogenerator 被引量:4
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作者 Xiao Hui Li Chang Bao Han +1 位作者 Li Min Zhang Zhong Lin Wang 《Nano Research》 SCIE EI CAS CSCD 2015年第10期3197-3204,共8页
In recent years, triboelectric nanogenerators have attracted much attention because of their unique potential in self-powered nanosensors and nanosystems. In this paper, we report a cylindrical spiral tdboelectric nan... In recent years, triboelectric nanogenerators have attracted much attention because of their unique potential in self-powered nanosensors and nanosystems. In this paper, we report a cylindrical spiral tdboelectric nanogenerator (S-TENG), which not only can produce high electric output to power display devices, but also can be used as a self-powered displacement sensor integrated on a measurement ruler. At a sliding speed of 2.5 m/s, S-TENG can generate a short-circuit current (Isc) of 30 μA and an open-circuit voltage (Voc) of 40 V. As the power source, we fabricate a transparent and flexible hand-driven S-TENG. Furthermore, we demonstrate a self-powered S-TENG-based measuring tapeline that can accurately measure and display the pulled-out distance without the need for an extra battery. The results obtained indicate that TENG-based devices have good potential for application in self-powered measurement systems. 展开更多
关键词 triboelectricnanogenerator self-powering displacement sensor
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