Research On Line Loss Analysis And Management Loss Measures Of Distribution Network In Maoming Power Supply Bureau

Distribution line loss calculation is an important means to provide power supply enterprises with higher power efficiency and reduce power loss.It can fundamentally analyze the cause of line loss,and it is of great significance to scientifically,reasonably and effectively formulate derogation measures,and can also help power supply companies to improve economic efficiency.In the existing research on the calculation method of line loss theory,the theoretical calculation of the line loss of different voltage levels is not operability and pertinence,resulting in low efficiency of the implementation process.Especially in the study of the applicability of calculation methods,there is still some content that can be studied in depth.Therefore,scientific theoretical line loss calculation can not only find management loopholes in daily management line loss,but also improve the layout,wire diameter and transformer distribution of the line more scientifically and rationally by calculating the data,reducing the loss of the line..In this paper,the theoretical line loss calculation of 35 kV,10kV,0.4kV voltage grade lines and power capacitors is carried out,and the key factors affecting line loss are found out,which provides a theoretical basis for the detailed analysis of the line loss of Maoming Power Supply Bureau.Based on the actual situation of Maoming Power Supply Bureau,this paper discusses the factors affecting line loss from two aspects of technical line loss and management line loss,and analyzes the current situation of line loss management.Using the line loss calculation model,the key measures to be followed in the loss reduction work are discussed.The technical loss reduction measures discussed constructive measures,changes in the operation mode of the distribution network,adjustment of reactive power compensation methods,adjustment of transformer operation mode and access location;management loss reduction measures discussed measurement measures for loss reduction,anti-stealing management,The level of line loss management automation has improved in three aspects.The paper calculates the line loss in terms of changing the operation mode,adjusting the reactive compensation method,changing the operation mode of the transformer,etc.,and obtains the best measure for the loss reduction.Under the guidance of these reduction measures,the line loss rate of Maoming Power Supply Bureau has been significantly reduced.Through detailed description of the theoretical line loss calculation method of distribution network with different voltage levels,the example simulation calculation is carried out according to each voltage level.The main research contents of this paper are as follows:First,literature research and data review of advanced line loss calculation methods at home and abroad,research and analysis of development status,and finding out the inadequacies of current calculation methods;Secondly,the calculation method is used to theoretically calculate the line loss of different grades of distribution network lines,and then the corresponding use method is proposed;Thirdly,through field investigation,the status quo of Maoming distribution network was understood,and the theoretical line loss calculation was carried out on the actual 10 kV and 0.4kV distribution networks;Finally,according to the current line loss of Maoming Distribution Network,the corresponding damage measures are proposed from the aspects of technology loss and management loss,and the effects of the measures are analyzed.