Paper Info
Title
Evaluating the Dispatchable Capacity of Base Station Backup Batteries in Distribution Networks
Abstract
Cellular base stations (BSs) are equipped with backup batteries to obtain the uninterruptible power supply (UPS) and maintain the power supply reliability. While maintaining the reliability, the backup batteries of 5G BSs have some spare capacity over time due to the traffic-sensitive characteristic of 5G BS electricity load. Therefore, the spare capacity is dispatchable and can be used as flexibility resources for power systems. This paper evaluates the dispatchable capacity of the BS backup batteries in distribution networks and illustrates how it can be utilized in power systems. The BS reliability model is first established considering potential distribution network interruptions and the effects of backup batteries. Then, the analytical formula of the BS availability index is derived with respect to batteries' backup duration. The dispatchable capacity of BS backup batteries is evaluated in different distribution networks and with differing communication load levels. Furthermore, a potential application, daily operation optimization, is illustrated. Case studies show that the proposed methodology can effectively evaluate the dispatchable capacity and that dispatching the backup batteries can reduce 5G BS electricity bills while satisfying the reliability requirement.
Year
DOI
Venue
2021
10.1109/TSG.2021.3074754
IEEE Transactions on Smart Grid
Keywords
DocType
Volume
Base station,5G,backup battery,demand response,dispatchable capacity,distribution networks,reliability,availability
Journal
12
Issue
ISSN
Citations 
5
1949-3053
2
PageRank 
References 
Authors
0.39
0
7
Name
Order
Citations
PageRank
Yong Pei1182.69
Ning Zhang23212.68
Qingchun Hou320.39
Yuxiao Liu431.78
Fei Teng5106.45
Song Ci61086106.10
Chongqing Kang79219.22