Distribution method for angular speed non-linear excitation controllers

Abstract

The invention provides a distribution method for angular speed non-linear excitation controllers. An electric power system which the distribution method is used for comprises a generator set, loads and an electric power network, the generator set further comprises generators, an excitation system, a water turbine and a speed regulating system of the water turbine, linearization equations of the generator set, the loads and the electric power network are respectively built, then a linearization equation of the whole system is built, the damping ratio is calculated through a state matrix of the linearization equation of the whole system, and the optimum distribution positions of the angular speed non-linear excitation controllers are determined. The control effect of the angular speed non-linear excitation controllers with the determined optimum distribution positions is brought into full play, the capacity for suppressing oscillation of the system is improved, and the distribution method for the angular speed non-linear excitation controllers has high practical value at the level of electric power system planning.

Description

technical field [0001] The invention belongs to the technical field of electric power system control, and in particular relates to a point layout method of an angular velocity nonlinear excitation controller. Background technique [0002] As far as the power system is concerned, the controller design based on traditional classical control theory is only aimed at a specific operating point of the system, and cannot consider the influence of system uncertainty factors. When a large disturbance occurs in the system, or large-scale new energy access produces large-scale fluctuations, the controller may not be able to adapt. Aiming at the above shortcomings of classical control theory, a lot of research has been done on the application of advanced control theory in power system. Among them, the research on generator nonlinear excitation controller has attracted the attention of scholars at home and abroad, and has achieved certain research results. However, the current research...

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Problems solved by technology

However, the current research only stays at the design level of the nonlinear excitation controller of the generator, and there is no literature related to the layout of the nonlinear excitation controller.

Some people at home and abroad have done research on the placement of PSS and FACTS components, but they have not yet involved the placement of nonlinear controllers

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