Non-invasive type residential electricity consumption load identification method
A technology for load identification and residential electricity consumption, applied in data processing applications, instruments, calculation models, etc., can solve the problems of low application technology difficulty, unfavorable promotion and application, troublesome daily life of the collected objects, etc., achieving simple maintenance, easy installation, Ease of promotion
Inactive Publication Date: 2018-09-14
GUANGDONG POWER GRID CO LTD
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Problems solved by technology
[0003] The adoption of intrusive load identification has the following defects: 1) Although the implementation process of the intrusion method is low in application technology difficulty, it can be solved by using existing mature technical solutions, but it needs to change the topology diagram of the power supply line of the participating data collection object, which will affect the daily life of the collection object. Unnecessary trouble, to a certain extent, reduces the enthusiasm of data collection objects to participate; 2) In modern society, there are many household appliances in each family, and the installation locations are scattered, and the collection cost will increase linearly with the increase in the number of collection devices
The cost of hardware remains high, which is not conducive to the promotion and application of large areas
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Embodiment 1
[0035] A non-intrusive residential electricity load identification method, comprising the following steps:
[0036] S1: Based on the purpose of electrical load identification, that is, to make the fitted total power and total harmonics the closest to the measured total power and total harmonics, the electrical load identification problem is transformed into an optimization problem solving the following formula , the objective function is
[0037]
[0038] Among them, P(t) is the total power collected in a residential line at any time, P=[P 1 ,P 2 ,...,P N ]' is the power value of N electrical appliances running, I(t) is the total harmonic collected in a residential circuit at any time, I=[I 1 , I 2 ,...,I N ]' is the harmonic when N electrical appliances are running, S=[s 1 ,s 2 ,...,s N ], where s i Indicates the operating status of the i-th electrical appliance, the operating status of the electrical appliance load is represented by 0 or 1, 0 indicates that the e...
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The invention discloses a non-invasive type residential electricity consumption load identification method. The non-invasive type residential electricity consumption load identification method comprises the following steps: S1, enabling the value of the fitted total power and total harmonic wave to be closest to the value of the actually measured total power and total harmonic wave and optimizingthe electric appliance load identification problem; S2, calculating the power feature value of each household appliance by utilizing a formula, calculating current harmonic spectrum amplification value by utilizing FFT, screening out data capable of representing the feature of the household appliance by a basic data screening method to form basic data of the household appliance; S3, acquiring thecurrent value and the voltage value of a resident user bus at certain moment and calculating total power; S4, generating M initial populations by utilizing quasi-random Halton sequence and performingbinary coding on the M individuals; and S5, calculating the adaptive value of each individual and performing genetic operation.
Description
technical field [0001] The present invention relates to the field of electric load identification, and more specifically, to a non-intrusive identification method for residential electric loads. Background technique [0002] There are usually two methods of load identification: intrusive and non-intrusive. The former sets a dedicated independent load detection sensor for each independent load, monitors each load condition and obtains relevant data, and finally summarizes the data. The latter only sets load detection sensors in the main power supply circuit, and uses software and hardware technology to identify different load input conditions and obtain relevant data by itself. [0003] The adoption of intrusive load identification has the following defects: 1) Although the implementation process of the intrusion method is low in application technology difficulty, it can be solved by using existing mature technical solutions, but it needs to change the topology diagram of the...
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IPC IPC(8): G06Q10/04G06N3/00
CPCG06N3/006G06Q10/04
Inventor 黄剑文温柏坚乔嘉赓徐晖蔡徽王国瑞萧展辉周珑彭泽武陈宋
Owner GUANGDONG POWER GRID CO LTD