A Calculation Method of Theoretical Line Loss Rate of Distribution Network
A technology of theoretical line loss and calculation method, applied in the field of electric power economic index research, can solve the problems that the analysis system cannot automatically update the network station table information, quickly locate the unfavorable fault points, and cannot provide the improvement plan in time, so as to improve the sense of belonging. And the effect of centripetal force, high practicality
Active Publication Date: 2019-03-15
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +1
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[0005] The Chinese patent application number: 200910303895.5 discloses a distribution network line loss analysis system. Although the basic line loss data can be obtained and the line loss information can be obtained after data processing, on the one hand, the analysis system cannot automatically update the network station list information. It is not conducive to the rapid positioning of fault points when the line is abnormal. On the other hand, effective and specific improvement plans cannot be given immediately after data analysis
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[0028] Such as figure 1 , figure 2 As shown, taking the calculation of the theoretical line loss rate calculation of the 10KV line as an example, the method of the present invention is described:
[0029] According to the existing power grid operation collection method, a D5000 collection system is generally installed on the 110kV, 35kV or 220kV low-voltage side, and the system can collect the total power consumption W of the 10kV line. 总 Spend;
[0030] Through the power grid information database, determine the total number of distribution transformers connected to the 10kV distribution line as N 总 tower;
[0031] Through the analysis and comparison of the processor, it is determined that the distribution transformer can collect the power and the number of distribution transformers with accurate power is N 1 station, the sum of the collected electricity is W 1 Spend;
[0032] The distribution transformer that collects accurate electricity uses the electricity method to...
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The invention relates to a calculation method of a theoretical line loss rate of a distribution network. On one hand, the theoretical line loss rate can be calculated by a power distribution transformer capable of accurately acquiring electric quantity through a coulometric method; on the other hand, proportion conversion is carried out by the power distribution transformer capable of accurately acquiring the electric quantity through a volumetric method and the power distribution transformer is subjected to electric quantity distribution; and a converted result is used for calculating the theoretical line loss rate through the coulometric method. After the calculation method provided by the invention is actually used, management and technical problems can be found in time, so that the line loss is reduced by adopting effective measures and the line loss management level is improved, and furthermore, the problems in a current phase that the calculation of the theoretical line loss rate of the distribution network is not accurate and the deviation is relatively large are solved; and the electric energy utilization rate of a power grid is improved, the income of electricity charge is increased and the profit level of power grid enterprises is enhanced.
Description
technical field [0001] The invention relates to the technical field of electric power economic index research, in particular to a method for calculating the theoretical line loss rate of a distribution network. Background technique [0002] Power grid power loss rate (referred to as line loss rate) is an important comprehensive technical and economic index for power companies, and it also reflects the planning and design, production technology and operation management level of the power grid. The power loss of the power supply equipment during the transmission and distribution of electric energy is called the theoretical line loss, which is calculated theoretically based on the parameters of the power supply equipment, the operation mode of the power network and its power flow distribution. Through theoretical calculation, the distribution law of electric energy loss in the power grid can be found. Through calculation and analysis, management and technical problems can be ex...
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IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 王磊王倩张建宾牛雨
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST