Supercharge Your Innovation With Domain-Expert AI Agents!

High-speed synchronous acquisition and calculation method and device for electrical load data

A technology of power load and high-speed synchronization, which is applied in the direction of measuring devices, complex mathematical operations, and measurement of electrical variables, can solve the problems of low calculation accuracy of electrical signal parameters, signal frequency aliasing, etc., and achieve low accuracy, Solve the effect of noise suppression and improve signal resolution

Pending Publication Date: 2021-10-22
STATE GRID JIANGSU ELECTRIC POWER CO LTD MARKETING SERVICE CENT +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the deficiencies in the prior art, this application provides a high-speed synchronous acquisition and calculation method and device for electric load data, which comprehensively adopts oversampling, least squares digital phase-shifting algorithm and quasi-synchronous algorithm to improve signal resolution and solve the problem of Solved the problems of signal frequency aliasing and noise suppression, different phase shifts, and differences in triggering time; solved the problem of low calculation accuracy of electrical signal parameters, and improved the calculation accuracy of electrical parameters

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
  • High-speed synchronous acquisition and calculation method and device for electrical load data
  • High-speed synchronous acquisition and calculation method and device for electrical load data
  • High-speed synchronous acquisition and calculation method and device for electrical load data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0061] The application will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, but not to limit the protection scope of the present application.

[0062] like figure 1 As shown, a high-speed synchronous acquisition and calculation method of electric load data of the present invention comprises the following steps:

[0063] Step 1: Set the oversampling rate Mc, obtain the sampling data with the oversampling rate Mc, perform low-pass filtering on the sampling data, and extract the sampling data corresponding to the oversampling rate Mc;

[0064] During specific implementation, an important source of noise in the sampling process is ADC quantization noise, which is generally 1 / 2LSB, which is the resolution of the sampling system. The quantization step of the ADC is usually uniform, and the input sample value is discarded to the closest quantiz...

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 high-speed synchronous acquisition and calculation method and device for electrical load data, and the method comprises the steps: 1, setting an oversampling rate Mc, obtaining sampling data at the oversampling rate Mc, carrying out the low-pass filtering of the sampling data, and extracting the sampling data corresponding to the oversampling rate Mc; 2, carrying out phase shift processing on the sampling data in the step 1; and 3, performing iterative processing on the sampling data after phase shift in the step 2 by using a quasi-synchronization algorithm, and calculating the amplitude, frequency and phase angle of each harmonic of the sampling data. According to the invention, the problems of signal frequency aliasing and noise suppression are solved; the problems that different phase shifts are caused by inconsistent parameters of a front-end anti-aliasing filter, and differences exist in triggering moments due to inconsistent rising edges of different ADC triggering signals are solved; the problem that in the prior art, electric signal parameter calculation accuracy is low is solved.

Description

technical field [0001] The invention belongs to the technical field of electric power measurement, and relates to a method and device for high-speed synchronous acquisition and calculation of electric load data. Background technique [0002] The purpose of signal sampling is to calculate the parameter characteristics of the signal, such as amplitude, phase, frequency, power, electricity, etc. When the frequency of the power grid fluctuates, non-positive periodic sampling will occur, which will affect the measurement of electrical signal parameters. Therefore, in the application scenarios that require accurate measurement of electrical parameters, it is necessary to select the parameter calculation method in a targeted manner. [0003] In my country, the ideal grid voltage and current frequency is 50Hz. In the case of pure fundamental wave (standard 50Hz) or harmonic (50Hz integer multiple), when the sampling frequency is an integer multiple of the signal frequency and great...

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): G01R22/10G06F17/16G06F17/18
CPCG01R22/10G06F17/16G06F17/18
Inventor 黄奇峰黄艺璇左强杨世海陈铭明方凯杰刘恬畅程含渺曹晓冬陆婋泉
Owner STATE GRID JIANGSU ELECTRIC POWER CO LTD MARKETING SERVICE CENT
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com