Electric power system robust state estimation method formed by quadratic programming

A technology for robust state estimation and power systems, applied in information technology support systems, calculations, electrical components, etc., can solve problems such as difficulty in obtaining the global optimal solution and meaningless state estimation

Active Publication Date: 2014-04-02
TSINGHUA UNIV +1
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  • Abstract
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Problems solved by technology

Although the tolerance of these RSEs is good, they all need to solve a nonlinear non-convex optimization problem. It is diffic

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  • Electric power system robust state estimation method formed by quadratic programming
  • Electric power system robust state estimation method formed by quadratic programming
  • Electric power system robust state estimation method formed by quadratic programming

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Embodiment Construction

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents coming within the spirit and scope of the appended claims.

[0023] In the description of the present invention, it should be understood that the terms "first", "second" and so on are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "connected" and "connect...

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Abstract

The invention provides an electric power system robust state estimation method formed by quadratic programming. The method comprises the following steps: S1, providing an electric power system robust state estimation basic model formed by quadratic programming; S2, converting the electric power system robust state estimation basic model formed by quadratic programming to obtain a dual model with the quadratic programming form; S3, resolving the dual model. The electric power system robust state estimation method formed by quadratic programming provided by the inventive embodiment has good robust performance; the provided model belongs to a quadratic programming problem, which can ensure to obtain a global optimal solution mathematically and has higher calculation efficiency. Therefore, the electric power system robust state estimation method formed by quadratic programming has good engineering application prospects.

Description

technical field [0001] The invention belongs to the field of electric power system dispatching automation, and in particular relates to a method for estimating the tolerance state of the electric power system in the form of quadratic programming. Background technique [0002] Power system state estimation is the foundation and core component of energy management systems. At present, state estimators are basically installed in power grid dispatching centers at home and abroad, and state estimation has become the cornerstone of safe operation of power grids. In the past forty years, domestic and foreign scholars have proposed a variety of state estimation methods, and state estimation has played an important role in helping people obtain a comprehensive, real-time and accurate perception of the entire power grid. [0003] At present, the most widely used power system state estimation method in practical engineering is the Weighted Least Squares (WLS) method. The WLS model is...

Claims

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Application Information

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IPC IPC(8): H02J3/00G06F17/50
CPCY02E60/76Y04S40/22Y02E60/00
Inventor 刘锋陈艳波梅生伟黄少伟马进崔静思
Owner TSINGHUA UNIV
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