Line loss calculation method

Abstract

The invention relates to a line loss calculation method. The method comprises the following steps: 1, calculating the electric quantity of each device, and analyzing the electric quantity of each measuring point device according to the line loss of a distribution line; 2, manufacturing line section equipment, searching the topological equipment at the front end and the rear end of each section and in the section, making quantity, equipment keys and section power supply lines, and making the line operation mode change states through interconnection switch operation state changes; 3, checking the electric quantity data: checking the electric quantity data according to the line operation state information generated by the line section equipment in the step 2; 4, section line loss calculation: calculating the line loss of the section according to the number of the devices of each section formed in the step 2 and the electric quantity data checking result in the step 3; 5, section line loss abnormity judgment: comparing the line loss rate of each section of the line with a set threshold value, and outputting alarm information through an alarm service when the line loss rate exceeds the threshold value. The method has the advantages that the equipment electric quantity is quickly and conveniently generated, and line loss analysis is carried out on each section.

Description

technical field [0001] The invention relates to the technical field of power grid line loss calculation, in particular to a line loss calculation method. Background technique [0002] Theoretical calculation of line loss is an important technical means for line loss management and analysis. Through theoretical calculation, the composition of losses in the power network can be more accurately understood, and a reliable basis can be provided for fully tapping the loss reduction potential of power grid enterprises, especially for different investment plans. Theoretical calculation of line loss is particularly important. Theoretical line loss calculation methods of distribution network mainly include forward push back generation current method, equivalent resistance method (capacity method and electric quantity method), root mean square current method, average current method, maximum current method, etc. The root mean square current method, average current method, maximum curre...

AI Technical Summary

Problems solved by technology

The root mean square current method, average current method, maximum current method, equivalent resistance method, etc. require less data, the calculation method is simple, and it is convenient for computer programming, but due to the low calculation accuracy, it is not convenient for loss reduction analysis; this scheme is based on The lean line loss analysis method of distributed distribution intelligent terminal and self-adaptive topology algorithm, relying on distribution automation master station graph model library, real-time topology and real-time information, can analyze the line loss of each section of distribution line in real time; therefore, it provides a It is necessary to quickly and conveniently generate equipment power, analyze the line loss of each section, and send an alarm message.

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