Online error analysis system of digitized electric energy metering device
An electric energy metering device and error analysis technology, applied in the direction of measuring devices, measuring electric variables, instruments, etc., can solve the problems that are not conducive to scientific research, lack of scientific and effective methods, and the popularization and application of digital electric energy metering devices cannot play a big role And other issues
Active Publication Date: 2015-07-08
ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD +2
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
It does not involve the quantitative analysis of the digital electric energy measurement error caused by the environmental factors of equipment operation, electromagnetic environmental factors and power supply environmental factors, and there is also a lack of scientific and effective methods for error analysis in this area
That is to say, even if the error factors such as A / D quantization and asynchronous sampling are accurately analyzed, it cannot be strongly supported by actual operating data.
This is neither conducive to scientific research, nor can it play a big role in the popularization and application of digital electric energy metering devices
To sum up, at present, there is neither a relatively complete analysis object nor a scientific and effective analysis method for the comprehensive error analysis of digital electric energy metering devices.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0023] The online error analysis system of the digital electric energy metering device provided by the present invention continuously acquires the relevant data of the error influencing factors of the digital electric energy metering device and the operating data of the device itself through the sensors installed in various key parts of the substation, including three busbars 5-7 accurate The cu...
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
Login to View More Abstract
The invention discloses an online error analysis system of a digitized electric energy metering device and belongs to the field of online monitoring of smart power grid devices. The online error analysis system continuously obtains error influence factor relevant data of the digitized electric energy metering device and operation data of the device through sensors installed at key positions of a transformer substation in an online mode and adopts a correlation analysis and related algorithm combined error analysis method to analyze the electric energy metering error influence degree of relevant influence factors. The online error analysis system comprises a current-voltage sensing unit, an environment sensing unit and a computer. The online error analysis system provides actual operation data for systematic study of digitized electric energy metering, well masters an error change rule of the digitized electric energy metering device and lays the theoretical and practical foundation for popularization and application of the digitized electric energy metering.
Description
technical field [0001] The invention belongs to the field of online monitoring of smart grid equipment, and more specifically relates to an online error analysis system of a digital electric energy metering device. Background technique [0002] With the advancement of science and technology, the power system continues to develop towards digitalization and intelligence. Digital substations are an important part of smart grids. In the digital substation, the electric energy metering no longer adopts the traditional electric energy metering device, but adopts the all-digital electric energy metering device. The typical three-phase digital electric energy metering device consists of figure 1 shown. The combined electronic transformers 1-3 on the high-voltage side are A-phase combined electronic transformers, B-phase combined electronic transformers and C-phase combined electronic transformers, wherein the combined electronic transformers include assembled The electronic curren...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01R35/04
Inventor 张秋雁杨爱冰肖监欧家祥徐宏伟王路李红斌程含渺
Owner ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD