Method and system for sensing multiple-dimension electric utilization activities

A perceptual system, multi-dimensional technology, applied in the field of computer applications, can solve the problems of confusing harmonic signals and insufficient differentiation, and achieve the effect of strong discrimination ability, improved judgment accuracy, and high judgment accuracy.

Active Publication Date: 2013-04-03
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

At the same time, the traditional two-dimensional power consumption characteristics composed of active power and reactive power are not enough to distinguish a large number of similar electri

Method used

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  • Method and system for sensing multiple-dimension electric utilization activities
  • Method and system for sensing multiple-dimension electric utilization activities
  • Method and system for sensing multiple-dimension electric utilization activities

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Experimental program
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specific Embodiment

[0090] one. Create a feature set as follows:

[0091] Current harmonic characteristics: the independent probability distribution of each order harmonic current value generated by the equipment;

[0092] The input characteristic value is the harmonic current of all orders of all electrical appliances;

[0093] The output is the logarithm of a statistical probability, the probability that all appliances have exactly the same eigenvalue as this input.

[0094] The formula is:

[0095] h 1 ( { c ij } ) = log ( Π i = 1 n Π j = 1 m P ij ...

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Abstract

The invention provides a method and a system for sensing multiple-dimension electric utilization activities. The method comprises the following steps of step 1, predefining statistical features of electric utilization equipment under a plurality of dimensions, obtaining a feature value of each statistical feature, and establishing a corresponding statistical model; step 2, installing a collecting unit at an entrance of an electric network, obtaining the current and voltage information of all electric utilization equipment in a real-time way, and comparing and training the feature weight of each statistical feature according to the current and voltage information and input data of an user by a calculating unit; and step 3, carrying out the enlightening type searching and calculation according to the feature values, the statistical models and the feature weights by the calculating unit, so as to obtain the real-time electric utilization activity of each electric utilization equipment, and sending the real-time electric utilization activities to a display unit. The method and the system have the advantages that multiple load features are combined with a series of statistical calculating methods to directly obtain the information of the electric utilization activities of all household equipment, the resolution capability is high, the judgment precision is high, and the electric utilization activities of the similar electric utilization equipment can be effectively distinguished.

Description

technical field [0001] The present invention relates to the field of computer application technology, in particular to a multi-dimensional power consumption behavior perception method and system. Background technique [0002] In 2008, IBM proposed the concept of "Smart Earth", describing it as "more thorough perception, more comprehensive interconnection, and deeper intelligence". The US government also put smart grid as an important part of its "new energy rescue plan" on the agenda shortly after Smart Earth was proposed. Compared with the traditional grid that we are familiar with, the smart grid means to obtain as much information as possible, pay more attention to the interaction between users, and provide better services by analyzing information. User-end devices such as smart meters directly contact users and guide users' electricity consumption behaviors, which is an important manifestation of the difference between smart grids and traditional grids. By giving detai...

Claims

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Application Information

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IPC IPC(8): G06F19/00G01R19/00
Inventor 刘晶杰徐志伟聂磊
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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