Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and system for effectively compensating conventional sampling power angle error

A power angle and error technology, applied in the field of routine sampling in substations, can solve the problems affecting real-time monitoring power grid data performance requirements and reducing data accuracy, and achieve the effect of alleviating heat dissipation problems, reducing load and energy consumption, and being easy to use.

Pending Publication Date: 2021-06-01
BEIJING SIFANG JIBAO ENG TECH +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] (3) A large number of calculations will reduce the accuracy of calculation data at the moment of data mutation, and will also affect the performance requirements of real-time monitoring power grid data

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 and system for effectively compensating conventional sampling power angle error
  • Method and system for effectively compensating conventional sampling power angle error
  • Method and system for effectively compensating conventional sampling power angle error

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] In order to make the object, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The embodiments described in this application are only some embodiments of the present invention, not all embodiments. Based on the spirit of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0044] The technical solution of the present invention will be further described in detail below in conjunction with formula derivation.

[0045] The specific workflow of a method for effectively compensating the power angle error caused by conventional sampling is as follows: figure 1 shown.

[0046] A method for effectively compensating the power angle error caused by conventional samp...

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 and system for effectively compensating a conventional sampling power angle error, and the method comprises the steps: collecting voltage original sampling data and current original sampling data under the conditions of certain voltage, current amplitude and power angle; calculating a power value by using the voltage original sampling data and the current original sampling data; calculating a power angle error compensation coefficient according to the power value; and compensating the calculated power value by using the power angle error compensation coefficient to obtain a power grid power active value and a power reactive value of the power angle error caused by compensation sampling. According to the method, the problem of power angle error caused by sampling in a conventional sampling device is solved, the calculated power value completely meets the precision requirement specified by the power technical standard, the power value can be quickly and accurately calculated in the numerical value sudden change process, and the method can be applied to an embedded secondary device or an intelligent substation.

Description

technical field [0001] The invention belongs to the technical field of conventional sampling in substations, and relates to a method and system for effectively compensating conventional sampling power angle errors. Background technique [0002] At present, substations need to obtain power value information accurately and in real time, which can provide data basis for intelligent power dispatching, and also provide data support for real-time monitoring of power grids. Therefore, the ability to calculate grid power in real time, quickly and accurately will promote the development of smart grid. [0003] Grid power calculation is shown in the following formula (1). [0004] [0005] The digital measurement and control device uses the acquisition value (SV) message integrated by the merging unit. When the merging unit sends the SV message, it has already processed the time difference between the voltage and current channels during the acquisition process. Therefore, the digi...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/06
CPCH02J3/00H02J3/06H02J2203/20
Inventor 赵靖杜振华肖彬晋阳珺赵立刚艾志虎程文雁王建东
Owner BEIJING SIFANG JIBAO ENG TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com