5G基站场景下的高压直流远供关键技术与经济模式

Key Technology and Economic Mode of HVDC Remote Supplyin 5G Base Station Scenario

与4G通讯相比,5G通讯采用大规模天线、超密集组网和高频通讯等关键技术使性能大幅提升,但也使5G单个基站功耗增加,站点数倍增,因此供电需求发生变化。目前有就近供电及高压直流远供两类供电形式可满足新的供电需求。针对高压直流远供,梳理了供电架构与关键技术,并综合考量削峰填谷经济模式运行投资成本、5G基站业务负荷忙闲时段、峰谷分时电价,提出一种可行的工作模式。该工作模式在高压直流远供方案已投资建设的基础上,投资成本小,并利用峰谷分时电价差获得经济效益,一定程度上缓解基站用电成本高的现状。最后对5G基站供电的发展进行展望,为研究或设计其供电提供参考。

Compared with 4G communication,5G communication uses key technologies such as large-scale anten-nas,ultra-dense networking,and high-frequency communication to greatly improve its performance,resulting in increased power consumption of single 5G base stations and multiple sites.As a result,the power supply requirements are also changed.At present,there are two kinds of power supply forms which can meet the new power supply requirements,i.e.,near supply and HVDC remote supply.Aimed at the HVDC remote supply,the power supply architecture and key tech-nology are sorted out,and a feasible operation mode is proposed by comprehensively considering the operating invest-ment cost in the economic mode of peak-shaving and valley-filling,the busy and idle periods of 5G base station service load,and the peak-valley time-of-use electricity price.On the basis of the construction which has already been invested under the HVDC remote supply scheme,the investment cost is small,and the economic benefit is obtained by using the time-of-use electricity price difference between peak and valley periods,thus reducing the power consumption cost of base stations to a certain degree.Finally,the development of 5G base station power supply is forecasted,providing refer-ence for the research or design of its power supply.