Listing method of circuit network state equation

Abstract

The invention relates to a listing method of a circuit network state equation. The method comprises the following steps: establishing a system equation of a circuit; implementing topological digitization on the circuit; executing a pseudo-code to obtain a coefficient matrix of the system equation of the circuit; and establishing a first-order state equation with a standard format. According to the technical scheme provided by the invention, the problem of sequencing state equations for general circuit networks existing for a long time can be solved, and thus the application of the state equation method in the electromagnet transient analysis of the circuit network becomes possible.

Description

technical field

[0001] The invention relates to a method for listing and writing the state equation of a circuit system, in particular to a method for listing and writing the state equation of a circuit network. Background technique

[0002] The state equation is a dynamic equation describing the circuit network system model, which is the basis of circuit network analysis. The state variables are a group of independent dynamic variables, and the state equation is a group of independent first-order differential equations expressed by the state variables. Equations of state with standard forms can be analyzed and solved using various well-established numerical calculation programs. The only problem is that the equation of state is usually not directly available. For a slightly complex medium-scale circuit network, it must be obtained through complex topology analysis with the help of the knowledge of network graph theory. It is generally believed that the formulation of sta...

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