A detection and analysis method for stealing electric power of street lamps based on the characteristics of electricity consumption behavior

Abstract

A method for detection and analysis of electricity stealing by street lamp substations based on the characteristics of electricity consumption behavior. This method obtains the electricity consumption data of each street lamp substation for several consecutive days, and recursively calculates the cumulative electricity consumption for 6 consecutive hours per day. The period corresponding to the minimum value of the accumulated power consumption of the street lamp special transformer for 6 consecutive hours per day is defined as the period with a small daytime no streetlight load, and the ripple coefficient value of the electricity consumption during the daytime with no streetlight load is small, and calculated The average value of the ripple coefficient of each street lamp transformer for multiple consecutive days, when the average value of the ripple coefficient exceeds 0.4, it is determined that the power consumption of the street lamp transformer is abnormal. In this way, through this method, it is possible to locate the street lamps that are found to have abnormal power consumption, and conduct targeted inspections in a timely manner to reduce losses caused by abnormal power consumption of users.

Description

technical field [0001] The invention relates to the field of electricity stealing detection in a power grid, in particular to a method for detecting and analyzing street light stealing electricity based on electricity behavior characteristics. Background technique [0002] As a comprehensive economic indicator for measuring and evaluating power supply enterprises, the line loss rate is a key indicator that characterizes the production technology and management level of power supply enterprises. Line loss directly leads to the loss of profits of power supply companies. Under the background of continuous and large reductions in industrial and commercial electricity prices that have severely impacted the operating income of the power grid, reducing line losses, especially non-technical line losses, is an important means to increase the revenue of power supply companies. [0003] Among the power loads supplied by the power grid, street lamps are a very special load. Generally, s...

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Problems solved by technology

[0004] It is difficult to find the hidden electricity-stealing connectors privately connected by electricity-stealing users, and some users even steal the power supply of street lamps for a long time, seriously threatening the personal safety of surrounding pedestrians and public interests.

Different from ordinary users, the street light load only measures the power supply of the special transformer and does not measure the power consumption of the supplied street lights. Therefore, the marketing management department cannot assess the line loss of the street lamp special transformer like the general distribution station area. And according to the line loss of the station area, the high-risk radio station area is checked. Therefore, the street lamp load has become a blind spot in the urban power supply management

In addition, street lamps are single-phase loads, and it is difficult to identify abnormal electricity theft based on three-phase load imbalance. Due to the lack of effective detection technology for electricity theft, street lamp electricity theft is a chronic problem that is difficult to solve in urban power grids

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