Research On 5G Communication Antenna Carrying Scheme Of Shared Power Towers

Compared with 4G signals,5G communication signals have short wavelengths,poor obstacle diffraction capabilities,and large losses,resulting in a small coverage area of 5G signals.In order to ensure the signal quality,the density of 5G communication base stations are bound to be increased,which makes the site resources even more scarce.The power tower is an important resource of the State Grid Corporation of China,and it has a wide range of distribution and a considerable number,which means it has the huge advantage of co-construction and sharing with the communication industry.Therefore,the sharing of 5G communication antennas through the power towers can greatly accelerate the speed of 5G communication networking and alleviate the problem of tight site resources.As a new thing,shared power towers face the following key issues in the development: 1.How to propose a systematic 5G communication antenna carrying plan for shared power towers;2.Because of the huge power consumption of 5G base stations,it is necessary to configure a high-power power supply system.However,shared power towers still face the following problems: a scheme for adding communication antennas to shared power towers needs to proposed;the 5G base stations are of huge power consumption,which need to be equipped with high-power supply systems.The subject of this paper is based on the sharing of power towers focusing on solving the problem of antenna carrying scheme and high-power supply of shared power towers,especially when the power towers are in the remote areas.Based on the shared power towers,this article proposes a 5G communication antenna carrying scheme for the shared power tower,and provides a high-power power supply plan for the 5G base station.In order to obtain the 5G communication antenna carrying scheme,firstly,this article analyzes the various parameters of the power towers,and gives the preliminary requirments for selecting the shared power tower,from the perspectives of its service of life,icing condition,importance and special terrain.Then three mounting positions of the 5G communication antenna on the power tower are put forward,which are the top of towers,the head of towers and the body of towers.Four typical types of towers are introduced as examples,from the perspectives of lightining protection,electrical distance,and magnetic field strength requirements.In the examples,the antenna mounting positon of different working conditions is decided,which also means the maximum antenna mounting height.Finally,the 5G3.5GHz band link budget and propagation model are calculated through simulation,which can be based on to obtain the minimum mounting height of the antenna on the power tower through the communication requirements.Based on the advantages and disadvantages of the existing power extraction methods,this paper proposes a high-power power supply scheme for shared power towers.That is,when the distance to the utility mains is very close,the shared power towers can directly connect the 220V/380 V mains,and it is equipped with the hybrid energy storage system composed of batteries and super capacitors.The hybrid energy storage system is used as a backup power source.When the mains electricity cannot be introduced or the cost of introducing the mains electricity is high,he open-core power transformer is used to directly obtain electricity from the high-voltage transmission line of the shared power tower,and the hybrid energy storage system is also used as the backup power supply.In order to ensure the quality of power supply,for the hybrid energy storage system,a model prediction overall control method considering the load characteristics of communication equipment is proposed.And it is verified by simulation and experiment.Simulation and experimental results show that,compared with traditional PI control,the control method proposed in this paper responds quickly and has strong immunity to disturbances when voltage fluctuates,and can guarantee the high-power power supply quality of 5G communication base stations.