Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for hyperbolic cosine maximum exponential absolute value robust estimation of power system state

A hyperbolic cosine and power system technology, applied to electrical components, circuit devices, AC network circuits, etc., can solve problems such as estimation performance needs to be improved

Active Publication Date: 2016-02-03
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +2
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the estimation performance of these robust state estimation methods still needs to be improved.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for hyperbolic cosine maximum exponential absolute value robust estimation of power system state
  • Method for hyperbolic cosine maximum exponential absolute value robust estimation of power system state
  • Method for hyperbolic cosine maximum exponential absolute value robust estimation of power system state

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The present invention proposes a hyperbolic cosine type maximum exponent absolute value robust estimation method for the state of a power system. The present invention will be described in detail below in conjunction with embodiments.

[0033] The hyperbolic cosine type maximum exponential absolute value robust estimation method of the power system state includes the following steps:

[0034] Step A: extract the power system node injection active and reactive power, branch active and reactive power, and node voltage amplitude parameters; in order to establish hyperbolic cosine maximum exponential absolute value robust state estimation (Hyperboliccosinemaximumexponentialabsolutevaluestateestimation, COSH-MEAV) basic model.

[0035] The basic model of COSH-MEAV is shown below

[0036] max x J ( x ) = Σ i = ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for hyperbolic cosine maximum exponential absolute value robust estimation of a power system state. The method comprises the following steps: extracting power system node injection active power and reactive power, branch active power and reactive power, and node voltage amplitude parameters; building a basic model of hyperbolic cosine maximum exponential absolute value robust state estimation (COSH-MEAV) from the above parameters; introducing auxiliary variables into the basic model and obtaining an equivalent model of COSH-MEAV; and using a primal-dual interior point algorithm to solve the equivalent model of COSH-MEAV. Calculation examples indicate that the method is high in robustness and calculation efficiency and has good engineering application prospect.

Description

technical field [0001] The invention belongs to the field of electric power system scheduling automation, in particular to a hyperbolic cosine type maximum exponent absolute value robustness estimation method for the state of the electric power system. Background technique [0002] Power system state estimation is the foundation and core of energy management systems. Now almost every large dispatch center has installed a state estimator, and state estimation has become the cornerstone of the safe operation of the power grid. Since state estimation was first proposed by foreign scholars in 1970, people have studied and applied state estimation for more than 40 years, and various state estimation methods have emerged during this period. [0003] At present, the most widely used state estimation at home and abroad is the weighted least squares method (Weighted least squares, WLS). The WLS model is simple and easy to solve, but its robustness is poor. In order to enhance the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H02J3/00
Inventor 陈艳波张璞韩子娇董鹤楠韩通于普瑶马进
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)