A kind of electric energy comprehensive data processing method

A technology that integrates data and processing methods. It is applied in the direction of measuring electricity, measuring electrical variables, and measuring devices. It can solve problems such as poor instantaneous disturbance recognition ability, high equipment cost, and affecting system functions, so as to ensure anti-interference ability and improve safety. performance and high measurement accuracy

Active Publication Date: 2015-11-18
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Due to the use of various computers as on-site monitoring and analysis tools, the cost of equipment is relatively high;
[0004] 2. The flexibility and versatility of equipment configuration is poor, and it can only be used in specific operating environments;
[0005] 3. Poor real-time performance, backward time-frequency analysis methods, and lack of ability to track and capture instantaneous disturbances and transient harmonics;
[0006] 4. The ability of remote communication is limited, it is not easy to realize remote monitoring, data sharing and long-term evaluation and prediction, and the level of intelligence and networking is not high
[0007] 5. The ability to classify interference and identify faults is limited, does not have intelligent analysis functions, and cannot provide users with information directly used for decision-making;
[0008] 6. The on-site equipment does not have real-time analysis capabilities, and a large amount of collected data must be transmitted to special analysis tools for processing, resulting in a large requirement for the storage capacity of the on-site equipment
[0009] The insufficiency of the equipment itself not only affects the on-site monitoring, but also affects the functions of the entire system. For example, the real-time performance of the on-site equipment is not good, and the ability to identify transient disturbances is poor, which will affect the system's rapid response to problems, power quality evaluation capabilities and decision-making. Skills of analyze

Method used

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Examples

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Effect test

Embodiment

[0027] A method for processing integrated electric energy data, comprising the following steps:

[0028] 1) The front-end data acquisition equipment collects electric energy data and transmits it to the metering chip in real time;

[0029] 2) The metering chip calculates voltage and current data, and obtains active power and reactive power;

[0030] 3) The metering chip obtains electric energy according to the accumulation of active power and reactive power;

[0031] 4) The metering chip outputs the waveform data to the CPU while directly calculating the current, voltage, power, and electric energy;

[0032] 5) After the Fourier transform, the CPU calculates the 1st to 31st harmonic components, and calculates the positive sequence, negative sequence, and zero sequence components according to the current and voltage fundamental components, and further calculates the unbalance degree of current and voltage.

[0033] The front-end of the metering chip is provided with a 2-stage...

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PUM

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Abstract

The invention relates to an electric energy integrated data processing method which includes the following steps that firstly, a front end data collecting device collects electric energy data and transmits the electric energy data to a measuring chip in real time; secondly, the measuring chip calculates voltage and current data and obtains active power and reactive power; thirdly, the measuring chip obtains electric energy according to accumulation of the active power and the reactive power; fourthly, the measuring chip outputs waveform data to a CPU while directly calculating the current, the voltage, the power and the electric energy; fifthly, the CPU calculates 1-31 times of harmonic components through Fourier transformation, calculates a positive sequence, a negative sequence and zero-sequence components according to current and voltage fundamental components, and further calculates the unbalance degree of the current and the voltage. Compared with the prior art, the electric energy integrated data processing method has the advantages of being multiple in function, good in safety, high in measuring precision and the like.

Description

technical field [0001] The invention relates to a method for processing electric energy data, in particular to a method for processing comprehensive electric energy data. Background technique [0002] Power quality is a prominent issue that my country's power companies and governments are very concerned about. With the development of various industries in our country, the irregular use of users has gradually changed the load structure in our country. At the same time, it has also seriously affected the power quality. , so the monitoring of power quality is very important, among which power data processing is particularly important. The existing power data processing generally stores the following problems: [0003] 1. Due to the use of various computers as on-site monitoring and analysis tools, the cost of equipment is relatively high; [0004] 2. The flexibility and versatility of equipment configuration is poor, and it can only be used in specific operating environments; ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
Inventor 沈滢朱彬若曹祎张垠关宏潘爱强
Owner STATE GRID CORP OF CHINA
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