高壓輸電線路行波法故障測(cè)距及無人機(jī)清障裝置研究
[Abstract]:High voltage transmission line is a kind of equipment built by State Grid Company to realize long-distance power supply and reasonable distribution of electric energy. High voltage transmission line passes through long distance, wide area, large carrying capacity of electric energy, and once failure occurs, There will be huge economic losses. This paper mainly discusses the measures taken to the fault of high voltage transmission line from two aspects. The first is to find fault point, that is, the research of accurate location method of fault point; The second is to clean up common problems, such as plastic film, kite, hot air balloon, branch and other flammable foreign objects, so a kind of UAV obstacle clearing device has been developed. Then the results of accurate location of fault points are transformed into GPS coordinates of longitude and latitude to be transferred to the GPS system of UAV for accurate hovering, which can automatically find fault points through UAV, and then the foreign body can be cleaned up with the fire spraying device brought by UAV. In order to improve the safety, economy and reliability of electric power system, reduce the intensity of manual labor and improve the working efficiency of electric power workers, this paper is based on the extensive reading of domestic and foreign literature and materials. The following studies are carried out: the background of the thesis is briefly introduced, various methods of accurate fault location are analyzed, and various existing fault location methods are studied, and on this basis, the traveling wave fault location method is deeply studied. In this paper, the common methods of traveling wave method for fault location are studied, which are single end method and double end method, and the two methods are analyzed, and the methods to be adopted in this paper are selected. Then the wavelet theory is further studied, and the characteristic analysis of discrete wavelet transform, continuous wavelet transform and wavelet base is emphasized. Finally, the selection principle of wavelet base in transient protection is found. Finally, the simulation model of single-phase short-circuit fault of transmission line is established by using electromagnetic transient simulation software ATPDraw, and the simulation data are obtained. The simulation waveform is transformed by wavelet transform through MATLAB software, and the modulus maximum method is used. Finally, the distance of fault point is calculated. By changing the transition resistance and the fault point short circuit phase angle and comparing the horizontal and longitudinal data, it is concluded that the transition resistance and the fault point short circuit phase angle can not affect the fault location of traveling wave method. In the second part of the paper, the task of developing UAV obstacle clearing device is established, and then the advantages of UAV patrol and inspection are introduced, and the UAV is carefully selected through most of the UAVs in the market. Finally, the S 1000 8 rotor UAV is chosen as the base of the whole device. Then, the shape, material and fuel of the barrier cleaning device are listed, and the optimal scheme is discussed by using the brainstorming method. Finally, the materials and tools are purchased from the market, and the UAV obstacle removal device is made successfully. The result of fault location in the previous paper is searched for fault point GPS coordinate in PMS system, and then the fault point coordinate is input into the UAV, so that the UAV can hover accurately near the fault point and find the fault point accurately. And by adjusting the position of UAV, accurate fire spray, remove obstacles. The application effect is very good, has the strong practical value, lightens the electric power worker's work burden, improves the working efficiency, has the very good economic benefit. In this paper, not only the fault location method of HV transmission line is studied, but also a new working tool is developed to remove the foreign body on the wire, and the new method and the new tool are deeply explored.
【學(xué)位授予單位】:鄭州大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:TM75
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