| With the rapid development of the economy,the country’s use of electrical energy is increasingly demanding,and the voltage level of transmission lines needs to be continuously improved.Transmission line inspection has become an important part of the power industry today.The high-voltage transmission lines are basically located in the wild,and the transmission distance is long,the environment is complex,and it is easily damaged in wind,rain,snow and lightning.In order to improve the inspection efficiency of highvoltage transmission lines,many areas have adopted the method of inspection by drones,and have received good results.However,the drone’s battery life is very short,which is also the biggest problem in the current application of drones.In view of this problem,this paper proposes an innovative research on the induction energy-receiving system of the UAV charging platform for transmission line inspection.It is intended to solve the problem of transmission line inspection.Consider installing a charging platform on the transmission tower.The platform uses induction.The energy consumption is the energy supply mode,and the energy obtained by the induction power is transmitted to the charging platform through the magnetic coupling resonant radio energy transmission technology,thereby solving the problem of the endurance of the drone.This paper is mainly divided into two main parts for research and analysis,namely,the transmission line induction energy-taking device and the resonant wireless energy transmission technology.First of all,induction energy extraction,as a non-contact real-time energy supply method,has great advantages compared with photovoltaic power generation,which not only reduces the weight but also improves the reliability of power supply.Specifically,it can be considered from the energy-receiving coil.And the back-end voltage regulator circuit for improvement research,mainly related to the material,size and design of the back-end voltage regulator circuit,and the simulation verification by Ansoft and Saber software.Finally,build the induction energy-receiving platform and verify Improve the rationality and accuracy of the research,and strive to solve the problem of poor safety performance,low energy consumption range and low efficiency of the induction energytaking device;Secondly,due to the large potential difference between the transmission line and the tower,it cannot be directly connected through the conductor.For this reason,the resonant radio energy transmission technology is used to transmit the energy obtained by the induction to the charging platform,and the transmission distance of at least 1.5 m is required.Requirements to achieve stable transmission.In this paper,the differential evolution algorithm is used to optimize the size of the resonant coil and the resonant frequency of the system.It is devoted to increasing the transmission distance as much as possible under the smaller resonant coil size.Finally,this paper builds a prototype in the lab to test the entire charging platform system.In this paper,the current is outputted by the current booster.The induction energytaking device is composed of the energy-receiving iron core and the back-end circuit.Finally,the stable low-frequency DC voltage is obtained.The E-type inverter is used to convert the low-frequency energy into high-frequency AC energy,thus resonating.The radio energy transmission system provides electrical energy,and the final output stable voltage value is the power supply of the charging platform.In summary,this paper considers the application of radio energy transmission technology to the problem of UAV battery life,and then solves the problem of transmission line inspection.After theoretical and experimental verification,the platform can be applied to transmission lines of 220 k V and below,which is a new type,reliable power supply device. |
PDF Full Text Request