A non-technical line loss detection method, device and system
A line loss and technology technology, which is applied in the field of line loss detection of distribution network, can solve the problem of low accuracy of non-technical line loss detection methods, and achieve the effect of high accuracy
Active Publication Date: 2020-09-29
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST +1
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Problems solved by technology
[0004] The purpose of this application is to provide a non-technical line loss detection method, device and system to solve the problem of low accuracy of existing non-technical line loss detection methods
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[0045] refer to figure 1 , according to an embodiment of the present application, a non-technical line loss detection method is provided, including:
[0046] Step S1, obtaining voltage data and load power at several same time intervals within a preset time period;
[0047] The voltage data is the voltage data obtained after processing the measured voltage data within a period of time. Any form of voltage data is most suitable for a given period of time. The load power is the load power obtained by integrating the power within the time interval. The processed data is transmitted according to a certain time interval (for example, 15min / time), thereby effectively reducing the amount of data transmission and reducing the requirements for distribution network communication equipment.
[0048] Wherein, the power integration refers to integrating the power in multiple time intervals with respect to time, so as to obtain the magnitude of the load power in each time interval. The eff...
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The invention discloses a non-technical line loss detection method, device and system. The method comprises steps that voltage data and load electric quantities of several identical time intervals ina preset time period are obtained; the voltage data are ordered from low to high, and the load electric quantities are ordered from high to low; time intervals corresponding to the voltage data and time intervals corresponding to the load electric quantities in the preset ordering threshold are selected to obtain a voltage time interval set and a load electric quantity time interval set; the correlation between the voltage time interval set and the load electric quantity time interval set is compared, and whether a smart meter has a non-technical line loss phenomenon is determined. The methodis advantaged in that the relationship between the node voltage and the power consumption is fully considered, through voltage ordering and load electric quantity ordering comparison, a non-technicalline loss problem is found out, the smart meter where non-technical line loss occurs is positioned, a measured state quantity is compared with measured load data, and accuracy is higher than a conventional method of comparing a theoretical value with a measured value.
Description
technical field [0001] The present application relates to the technical field of distribution network line loss detection, in particular to a non-technical line loss detection method, device and system. Background technique [0002] The line loss rate is an important technical and economic index reflecting the operation status of the power grid. Line loss is divided into technical line loss and non-technical line loss. Technical line loss is related to the physical characteristics of the grid, while non-technical line loss is due to non-technical sources, such as meter reading errors or power theft. The detection of non-technical line loss also has a crucial impact on the economic operation of the power grid. [0003] At present, the non-technical line loss detection of the line is generally through the comparison of the actual line loss and the theoretical line loss, so as to find the non-technical line loss, but this method has great limitations. The calculation of theor...
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IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 李坤杨立超王恩李博邵方冰杨根甜唐标李海铎翟少磊马金才
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST