Heterogeneous grid structure topology mapping method for offline and online data of power grid

Abstract

The invention discloses a heterogeneous network frame topology mapping method for offline and online data of a power grid, which is characterized by comprising the following steps of: decomposing a primary equipment topology network of a power grid into two stages of networks according to electrical characteristics of primary equipment of the power grid and inherent characteristics of the power grid; wherein the first-layer network is composed of a plant station and a line to form a plant-station-level topological network; the topology network is homologous and isomorphic, and subnet isomorphic algorithm topology mapping of the graph theory is applied; wherein the second-layer network is composed of primary equipment of each plant station, and the offline data and the online data form a topological network according to the connection relationship between the primary equipment and the secondary equipment; and expanding the topological networks of the plant stations and the lines of thefirst-layer network to the topological network of the primary equipment by the first-layer network and the second-layer network through the connection relationship between the bus and the lines, so that the whole-network topological mapping of offline and online data is realized, and the mapping from the node correspondence of the primary equipment of the offline data and the online data to the whole-network topological network is realized.

Description

technical field

[0001] The present application relates to the technical field of power system simulation, and in particular to a topology mapping method of heterogeneous grids for offline and online data of a power grid. Background technique

[0002] At present, power grid simulation analysis in China is roughly divided into two modes, offline mode and online mode. The off-line mode usually uses BPA and PSASP power calculation and analysis programs to simulate and analyze the pre-built power grid model. This patent adopts the offline data model of the power grid calculation database (PSDB), and supports the export of the grid mathematical model of different types of calculation programs. One is based on online data, such as the QS file of D5000’s operating state estimation, combined with the offline data of the power grid for model mapping and other steps, to generate a set of calculation models that meet the operating conditions of the power grid, and then use the BPA or P...

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