Power grid topology dynamic analysis method based on DSTU and association matrix

Abstract

The invention discloses a power grid topology dynamic analysis method based on a DSTU and association matrixes. The power grid topology dynamic analysis method comprises the steps of: arbitrarily numbering grid nodes, installing a DSTU in each switch, and acquiring grid typological structure information by means of the DSTUs; construing a first association matrix A of the grid nodes according to the acquired grid typological structure information; setting a transformation rule according to the form of a power grid, and converting the first correlation matrix A into a second correlation matrixA' based on the transformation rule; extracting a corresponding standard triangular matrix from the second correlation matrix A' to obtain a network typological structure diagram of the power grid; and if the network structure changes, extracting the topological structure information by means of the DSTUs, and disconnecting or connecting edges among the power nodes to realize power grid topology dynamic analysis. The power grid topology dynamic analysis method provided by the invention can analyze the real-time typological structure of the power grid rapidly, identify the nodes of ports in thepower grid, and has simple and efficient calculation method.

Description

technical field [0001] The invention relates to the technical field of power system topology analysis, in particular to a dynamic analysis method for power grid topology based on a DSTU (Distributed intelligent terminal unit, distributed intelligent terminal unit) and an association matrix. Background technique [0002] Network topology refers to the physical layout of various devices interconnected by transmission media, especially where computers are distributed and how cables are routed through them. Topology is an abstract representation method that only uses points or lines to describe the actual position and relationship of multiple objects, regardless of the physical properties such as the size and shape of the object. Topology does not care about the details of things, nor does it care about the mutual proportional relationship, but only expresses the relationship between multiple objects within a certain range in the form of a graph. Power network topology analysis...

AI Technical Summary

Problems solved by technology

However, there are the following problems: (1) The traditional matrix method requires complex matrix operations, which requires a large amount of calculation and slow calculation speed, which is difficult to meet the requirements of real-time applications

(2) When the power grid structure changes, the scalability is not flexible enough, and many contents in the program need to be corrected, and the operation and maintenance are more complicated, which is not conducive to engineering application

These improvements have increased the calculation speed to a certain extent, but because complex matrix operations still need to be performed, there is no essential change

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