Method for counting equipment of power grid and computing transmission losses on basis of on-line theoretical transmission loss computation

Abstract

The invention belongs to the technical field of analysis and computation of transmission losses of the power grid in the electric system and particularly relates to a method for counting equipment of the power grid and computing transmission losses on the basis of on-line theoretical transmission loss computation. The method includes: building gate circuits or gate transformers at the boundary of a domination area of a power grid company, automatically counting and updating circuits and transformers involved in the on-line theoretical transmission loss computation on the basis of the topological structure of the power grid, and accordingly, computing distribution of theoretical transmission losses and computing policy for reducing losses. By the method, all equipment involved in transmission loss computation can be automatically determined by manually maintaining the gate circuits and the transformers at the boundary of the domination area of the power grid company only. Besides, when the method is compared with the conventional manner of manual maintenance, work load is greatly reduced, the method can adapt to change of the power grid structure automatically, and availability and accuracy of on-line theoretical transmission loss computation and loss reduction policies for the power grid are improved.

Description

technical field [0001] The invention belongs to the technical field of grid network loss analysis and calculation in electric power systems, and in particular relates to a loss reduction calculation method for automatically determining participating statistical equipment in the online theoretical network loss calculation of the power grid. Background technique [0002] Electric energy is a secondary energy obtained from primary energy conversion, which can be converted into mechanical energy, thermal energy, magnetic energy, etc. With the development of society, electric energy has become the lifeblood of the development of the national economy, and its application has penetrated into various fields of production and life. With the rapid increase of power transmission in the power grid, the active power loss of the power grid (hereinafter referred to as network loss) also increases significantly. Taking 2007 as an example, China's annual power generation was about 3.3 trill...

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Problems solved by technology

With the continuous and rapid development of the power grid in recent years, this method has been difficult to meet the requirements of online theoretical network loss calculation

The grid structure and equipment of the power grid are in the process of rapid development and change. In order to ensure the accuracy of the online theoretical network loss calculation of the power grid, a large amount of manpower must be spent on maintenance work, resulting in inaccurate online network loss analysis and calculation results.

From the published literature, there is no systematic method to solve this problem

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