Nonlinear load electric energy metering device

A technology for electric energy metering devices and non-linear loads, applied in measuring devices, measuring electrical variables, instruments, etc., can solve the problem of the lack of effective detection means for difficult to reflect impact load electric energy, dynamic and transient processes, and lack of monitoring of load to power grid pollution and evaluation issues to achieve the effect of reducing displacement error, improving accuracy, and accurate measurement data

Inactive Publication Date: 2013-10-09
STATE GRID CORP OF CHINA +2
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, no special means are used to measure the electric energy of impact load users, and ordinary electric meters are still used, which is difficult to reflect the actual energy consumed by the impact load, and the pollution of the load to the power grid is also lack of monitoring and evaluation
[0003] Most of the current electric energy metering devices are based on the traditional sinusoidal power theory. When the grid load is mainly linear load and the distortion and fluctuation of the line wavefo...

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
  • Nonlinear load electric energy metering device
  • Nonlinear load electric energy metering device
  • Nonlinear load electric energy metering device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0031] Such as figure 1 As shown, a non-linear load energy metering device includes a voltage sensing and conditioning unit, a voltage RC filter circuit, a current sensing and conditioning circuit, a current RC filter circuit, an ADC analog-to-digital converter, and a data processing and management unit. The signal is transmitted to the ADC analog-digital converter through the voltage sensing and conditioning unit and the voltage RC filter circuit, the current signal is transmitted to the ADC analog-digital converter through the current sensing and conditioning circuit and the current RC filter circuit, and the ADC analog-digital converter will receive The voltage s...

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

PropertyMeasurementUnit
Resistanceaaaaaaaaaa
Capacitanceaaaaaaaaaa
Capacitanceaaaaaaaaaa
Login to view more

Abstract

The invention discloses a nonlinear load electric energy metering device which comprises a voltage sensing and conditioning unit, a voltage RC filter circuit, a current sensing and conditioning circuit, a current RC filter circuit, an ADC analog-digital converter and a data processing and managing unit. Voltage signals are transmitted to the ADC analog-digital converter through the voltage sensing and conditioning unit and the voltage RC filter circuit. Current signals are transmitted to the ADC analog-digital converter through the current sensing and conditioning circuit and the current RC filter circuit. The ADC analog-digital converter carries out conversion on the received voltage signals and the current signals and transmits the voltage signals and the current signals to the data processing and managing unit. The nonlinear load electric energy metering device achieves the advantages that metering signal transmission distortion does not occur and work is stable and reliable in the conditions that impact load is wide in frequency band and large in dynamic range.

Description

technical field [0001] The invention relates to the field of electric energy metering devices, in particular to a non-linear load electric energy metering device. Background technique [0002] With the rapid development of power electronics technology, the proportion of nonlinear loads is gradually increasing, and nonlinear problems are becoming increasingly prominent in power grids. This type of load has obvious impact characteristics. During production or operation, it will take fast-changing power from the power supply network. The instantaneous peak value of power may be several times or even dozens of times its average value. This type of load is collectively referred to as Shock load. Currently, no special means are used to measure the electric energy of impact load users, and ordinary ammeters are still used, which is difficult to reflect the actual energy consumed by the impact load, and the pollution of the load to the grid is also lacking in monitoring and evaluat...

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): G01R22/10
Inventor 黄葆文魏钰杨春光乔立凤高敬更赵言涛王磊
Owner STATE GRID CORP OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap