Performance Evaluation of Power in GSM BTS in Nigeria Using PV Solar System

Abstract

In a typical Global System of Mobile (GSM) communications, Base Transceiver Station (BTS); the network security and availability with respect to transmission of network signals is a function of power availability on site. This research project is directly aimed at achieving power availability with minimum overhead expenses in respect of fuel consumption on site’s generators. A solar panel is employed as the main supply of power; energy from the sun is converted into dc form through the use of converters while a filter circuit is designed at the power supply unit to give an output with low harmonics. The converter circuits are arranged in forward and reverse modes such that when the solar panel is fully insolated (charging mode) the forward mode operates, while the reverse mode operates when the circuit is discharging. A buck-boost converter is employed to step-up or down the voltage output needed at the different stages. An isolator circuit is employed in this design to isolate the low voltage path (dc path) from the high voltage path (ac circuit). Simulations of the various circuits in this design were carried out using Matlab Simulink to clearly describe the waveforms expected at each output of the functional blocks.

Keywords: Transceiver Station (BTS), Global System of Mobile (GSM), Static converter efficiency, Solar Photovoltaic(PV) energy, Inverter.