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A power signal filtering method and system utilizing shrinkage gradients

A power signal and gradient technology, applied in the field of electric power, can solve problems such as insufficient attention

Inactive Publication Date: 2020-09-18
GUANGDONG UNIV OF PETROCHEMICAL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The current commonly used methods have not paid enough attention to this problem, and have not taken effective measures to solve this problem

Method used

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  • A power signal filtering method and system utilizing shrinkage gradients
  • A power signal filtering method and system utilizing shrinkage gradients
  • A power signal filtering method and system utilizing shrinkage gradients

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0042] figure 1 Schematic diagram of a power signal filtering method using shrinkage gradient

[0043] figure 1 It is a schematic flow chart of a power signal filtering method using contraction gradient in...

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Abstract

The embodiment of the invention discloses a power signal filtering method and system using shrinkage gradient. The method comprises the following steps: step 101, acquiring a signal sequence S acquired according to a time sequence; 102, calculating a shrinkage factor beta; 103, solving an initial value x0<SM> of the shrinkage sequence x<SM>; 104, creating an iterative control parameter k and assigning 0, and creating a contraction step length tk and assigning delta T; step 105, solving a gradient vector shown in the specification; step 106, solving a shrinkage gradient function gk; 107, judging whether the shrinkage gradient function gk is smaller than an absolute value shown in the specification or not and obtaining a first judgment result; step 108, adding 1 to the value of the iterativecontrol parameter k, and calculating the kth step value of the shrinkage vector x<SM>; step 109, solving an adjacent error e; 110, judging whether the adjacent error e is greater than or equal to a preset threshold epsilon 0 or not to obtain a second judgment result; 111, recording a signal sequence SNEW from which noise is filtered, specifically, SNEW=xk<SM>;

Description

technical field [0001] The invention relates to the field of electric power, in particular to a method and system for filtering power signals. Background technique [0002] With the development of smart grid, the analysis of household electricity load becomes more and more important. Through the analysis of electricity load, household users can obtain the electricity consumption information of each electrical appliance in a timely manner, as well as a detailed list of electricity charges; the power department can obtain more detailed user electricity consumption information, and can improve the accuracy of electricity load forecasting, Provide a basis for overall planning for the power sector. At the same time, using the electricity consumption information of each appliance, the user's electricity consumption behavior can be known, which is of guiding significance for household energy consumption assessment and research on energy-saving strategies. [0003] At present, the...

Claims

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Application Information

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IPC IPC(8): G06K9/00G01R21/00
CPCG01R21/002G06F2218/04G06F2218/08
Inventor 翟明岳
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH
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