Transient-feature-clustering-based household load identification method

A transient feature and load identification technology, which is applied in the direction of special billing meters, measuring devices, instruments, etc., can solve the problems of unrecognizable classification, etc., and achieve the effects of improving the accuracy of load identification, reducing transmission loss, and reducing the amount of calculation

Inactive Publication Date: 2016-12-14
STATE GRID CORP OF CHINA +1
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AI Technical Summary

Problems solved by technology

Although the load steady-state features are easy to extract and can identify most of the household loads, the disadvantage is that when the steady-state features of household appliances are similar or overlapped, they cannot be accurately identified and classified

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  • Transient-feature-clustering-based household load identification method
  • Transient-feature-clustering-based household load identification method
  • Transient-feature-clustering-based household load identification method

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Embodiment Construction

[0018] The present invention provides a household load identification method based on transient feature clustering. This embodiment takes electric teapots, microwave ovens, disinfection cabinets and hair dryers as examples for specific description, including the following steps:

[0019] a) Establish a database of electrical load characteristics; the establishment of a household load characteristic database is the most important basic part of the entire identification. Before load identification, it is necessary to conduct separate operating tests on household loads one by one, and conduct real-time monitoring and extract load characteristics Vector, in order to establish a database of household load characteristics, as a basis for load identification;

[0020] b) Collect the electricity consumption parameters of the electricity load, use the bilateral cumulative CUSUM algorithm of the sliding window to detect the transient event of the load, and record the transient data; when...

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Abstract

The invention discloses a transient-feature-clustering-based household load identification method. The method comprises: an electric load feature database is established; an electric parameter of an electric load is collected, a transient event of the load is detected by using a dual-side accumulated CUSUM algorithm of a sliding window, and transient data are recorded; a clustering analysis is carried out by using a sum-of-squared-error criterion function, and a transient feature is extracted; and the extracted transient feature is compared with the electric load feature database and a household load is identified. On the basis of the collected information like the electric parameter of the electric appliance, the clustering analysis is carried out based on using a K-mean-value sum-of-squared-error criterion function by using the load transient feature as a feature quantity, thereby identifying a load with a similar or overlapped steady feature, improving the load identification precision, and realizing load identification of a household appliance or electrical equipment. Moreover, the method is simple; the calculation load is low; the electricity using behavior of the user is regularized; the power transmission losses are reduced; and the energy utilization rate is improved.

Description

technical field [0001] The invention relates to the technical field of household electricity identification, in particular to a household load identification method based on transient feature clustering. Background technique [0002] Classified metering of household electricity consumption is an inevitable requirement for smart energy meters. The electric energy meter currently used only realizes the time-of-use measurement of the total electricity, but does not have the function of classifying and measuring according to the nature of the load. Household load identification is to realize the classification and measurement of electricity bills, so that the user's electricity bill list is like a telephone bill list, and the electricity consumption of various household appliances is clear at a glance. This can enable home users to know their own electricity consumption in a timely manner, and provide reference for users to reasonably allocate electricity consumption time and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R11/56G01R11/54
CPCG01R11/56G01R11/54
Inventor 孙洁杨连瑞仇德贵丁苏标房韫
Owner STATE GRID CORP OF CHINA
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