Method for achieving real-time calculation and high accuracy of large-scale power grid theoretical line loss

Abstract

The invention discloses a method for achieving real-time calculation and high accuracy of large-scale power grid theoretical line loss. The method for achieving real-time calculation and high accuracy of large-scale power grid theoretical line loss can widen the range of network calculation and improve work efficiency and calculation accuracy. The method for achieving real-time calculation and high accuracy of large-scale power grid theoretical line loss comprises the following steps that a clock of a data collection system synchronizes with a GPS clock and then compares the time with the time of a collection device, the collection device compares the time with the time of an ammeter; branch currents, node voltage, active power, reactive power, active electricity quantity and reactive electricity quantity are connected with nodes or branches in a node-branch model; a data collection system module is arranged to obtain a power grind main wiring diagram, parameters of elements and operation parameters from an SCADA, GIS and measurement automation system in real time; the power grind is classified; a data maintenance system module and a theoretical line loss calculation module are arranged to carry out classification calculation on the power grind according to voltage, areas, lines and power distribution chambers; a centralized control center module is arranged; a theoretical line loss analysis module is arranged to finish calculation and analysis on the theoretical line loss of the whole power grid.

Description

technical field [0001] The invention relates to the field of power grid line loss calculation and analysis, in particular to a method capable of realizing real-time calculation of large-scale power grid theoretical line loss and improving the accuracy of theoretical line loss calculation. Background technique [0002] Line loss is the power loss generated in the process of power transmission, and the line loss rate is an indicator to measure the level of power grid operation and management, and is also an important reference in the planning and construction of smart grids. The theoretical line loss calculation can comprehensively reflect the level of power grid planning and design, power grid construction, technological progress, and production operation and management level, and is also an important technical management method for power supply enterprises. Line loss management has certain particularities compared with other tasks. Data collection and information maintenance...

AI Technical Summary

Problems solved by technology

Although this technical solution utilizes the data of the electric power automation system, it cannot obtain the real-time corresponding information of the network topology, wiring diagram and operation data, and the clocks of the acquisition device, smart instrument and other equipment cannot run synchronously, which will bring about the collected The real-time and consistency of data and information are poor, resulting in large errors in line loss calculations, difficulties in online calculation of theoretical line losses, etc., and the lack of measures to deal with burst calculations in the scheme, which makes it poorly adaptable to large-scale power grids

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