Uninterruptible power supply for 48v base transceiver station (BTS)
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Date
2019-06
Authors
Ahmad Syahir Bin Saharuddin
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Abstract
Reliable uninterruptable power supply for telecommunication station is very critical in order to maintain an interruptible and continuous transmission. Commonly, the main power supply for the station is delivered from the national grid and backed up by the fossil fuel generator. However, catastrophic phenomena like flood, earthquake and tsunami will isolate the station from the national grid and totally shut down the transceiver operation. In rural areas where access to national grid is very limited added with uneven earth topology, alternative sources must be obtained to provide a stable power source. For now, fossil fuel generator provides the backup power supply for almost all telecommunication systems. With the higher cost of fossil fuel and unstable market price, there is major need to integrate alternative sources as stable backup power supply while at the same time reducing the operation cost. In this design, combination of AC mains and renewable energy has been developed to serve as a stable yet inexpensive uninterruptable power supply for 48V base transceiver station (BTS) targeted for 2G network signal transmission. Solar power has been chosen as an alternative renewable energy source to charge the battery bank storage. DC-DC boost converter can be able to step up the 48V transceiver system from 12V battery storage.