On-line calculation system and method for theoretical line loss of power grid

Abstract

The invention discloses an on-line calculation system and method for the theoretical line loss of a power grid, and the method comprises the steps: reading topological structure data from a GIS information system in a mode of interface service, and storing the topological structure data in a line loss calculation database; reading the parameters of operation equipment from a PMS system in a mode of interface service, and storing the parameters in the line loss calculation database; reading operation data from a Open3000 system and a power utilization information collection system in a mode of interface service, and storing the operation data in the line loss calculation database; achieving the querying, reading and verifying of a graphic structure, equipment parameters and operation data stored in the line loss calculation database; employing the Newton-Raphson power flow algorithm to calculate the theoretical line loss, and displaying calculation results in a mode of graphics. The system and method effectively improve the accuracy of line loss calculation results and work efficiency, and alleviates the labor of a calculation worker in searching and processing data. The calculation results are in real time, are accurate and comprehensive, and correctly reflect the condition of power loss in a transmission process of power.

Description

technical field [0001] The invention belongs to the technical field of calculation of theoretical line loss of distribution network, and in particular relates to an online calculation system and method of theoretical line loss of power grid. Background technique [0002] The theoretical line loss calculation work is a task that power companies must do every year. It selects a certain day in a year as a representative day, calculates the line loss rate of the entire network on this day, and then analyzes the lines, transformers, and components of each voltage level in the entire network. Find out the power loss situation, find out the heavy and light loss lines and heavy and light loss transformers of the power grid, and find the weak link in the operation of the power grid, which plays an important role in testing the power grid planning and transformation level, and improving the economic benefits of power companies. In addition to having a good theoretical line loss calcul...

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Problems solved by technology

[0004] The purpose of the present invention is to provide an online calculation system and method for the theoretical line loss of the power grid, aiming at solving the problem that the input of the current theoretical line loss information of the power grid takes a long time, does not have immediacy, accuracy is low, and data is incomplete, which leads to delays in the calculation time of representative days and The analysis function is reduced, but the line loss calculation interface does not have a graphical display, which makes the operation of the staff unintuitive and unable to quickly respond to specific equipment conditions, which greatly affects the efficiency of the line loss calculation operation

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