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A Harmonic Monitoring Method

A harmonic and harmonic pollution technology, applied in harmonic reduction devices, AC networks to reduce harmonics/ripples, spectrum analysis/Fourier analysis, etc., can solve the problems of low intelligence and improve intelligence degree of effect

Active Publication Date: 2020-10-09
STATE GRID CORP OF CHINA +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present application provides a harmonic monitoring method to solve the problem that the harmonic monitoring method in the prior art can only realize monitoring and has a low degree of intelligence

Method used

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Embodiment Construction

[0023] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

[0024] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude one or more other features. , whole, step, operation, element, component and / or the presence or addition of a collection thereof.

[0025] It shou...

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Abstract

The method is applicable to the technical field of harmonic monitoring, and provides a harmonic monitoring method. The method comprises the following steps: obtaining an electric signal of a to-be-monitored power grid, wherein the to-be-monitored power grid comprises a to-be-monitored user-side power grid to be monitored, a to-be-monitored wire outlet side power grid or a to-be-monitored bus powergrid; extracting the harmonic pollution degree of the electric signal, performing the processing, corresponding to the harmonic pollution degree, of the to-be-monitored power grid based on the harmonic pollution degree. Through the method, the harmonic waves can be monitored, the harmonic waves can be regulated and controlled, and the intelligent degree is improved.

Description

technical field [0001] The application belongs to the technical field of harmonic monitoring, and in particular relates to a harmonic monitoring method. Background technique [0002] With the development of my country's power grid technology, power electronic equipment is widely used in various fields, which brings great convenience to people's lives. The development of frequency conversion technology has brought great pollution to the power grid. High-order harmonic current and harmonic voltage have a great impact on the grid voltage, and even affect the stable operation of the entire power grid. [0003] In order to control the harmonics of the grid well, it is generally necessary to detect the harmonics of the grid current first. However, the existing harmonic detection methods can only realize monitoring, and the degree of intelligence is low. Contents of the invention [0004] In view of this, an embodiment of the present application provides a harmonic monitoring me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/01G01R23/16
CPCY02E40/40
Inventor 杜俊杰何瑞东段志国和立辉杜洋蒋云峰梁俊伟刘清国曹乾坤
Owner STATE GRID CORP OF CHINA
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