Fault Diagnosis Method of Solar Hybrid Power Supply System in Base Station
Solar hybrid power supply technology has been applied in communication base stations on a large scale.However,due to the scattered distribution of base stations and high requirements for professional skills of maintenance personnel by PV equipment,it is costly and difficult to regularly inspect the solar hybrid power supply system of the base station.Based on the investigation of common fault types of base station solar hybrid power supply system,this paper carried out field fault simulation tests for base stations,establishes typical fault characteristic models of base station solar hybrid power supply system,proposes fault diagnosis methods such as horizontal comparison of power generation data between PV modules at the same site and vertical comparison of historical power generation data.The algorithm is verified based on the power generation data of base stations with solar hybrid power supply system in the existing network,and the diagnostic accuracy rate of periodic fixed object shading reaches 88％.This method has shown its promising promotion and application prospects,since it can effectively locate the faulty PV modules and fault causes of the base station solar hybrid power supply system,reduce the cost of regular on-site inspection and the skill requirements of maintenance personnel and improve O&M efficiency.
communication base stationsolar hybrid power supply system5GPVfault diagnosis
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