Nonintrusive Industrial Load Identification Combined with Random Forests and Steady-State Waveform

Shuhui Yi; Hongxia Zhu; Junjie LiuJunnan Li

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Nonintrusive Industrial Load Identification Combined with Random Forests and Steady-State Waveform

机译：Nonintrusive Industrial Load Identification Combined with Random Forests and Steady-State Waveform

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onintrusive industrial load identification can accurately acquire the operation data of each load in the plant, which is the benefit of intelligent power management. The identification method of the industrial load is complicated and difficult to be realized due to the difficulty in collecting transient data for modeling, and high-precision measuring equipment is required. Aiming at this situation, the article proposes a nonintrusive industrial load identification method using a random forest algorithm and steady-state waveform. Firstly, by monitoring the change of the industrial load power state, when the load changes and becomes stable, the steady-state waveform is extracted. Due to different electrical characteristics of industrial loads, the current waveform of loads is different to some extent. We can construct characteristic data for each industrial load to construct its own current steady-state waveform. Then, using the high-dimensional data of the steady-state waveform as the sample data, the bootstrap sampling method and the CART algorithm in the random forest algorithm are used to generate multiple decision trees. Finally, the industrial load types are identified by voting multiple decision trees. The actual operating load data of a factory are used as the sample data in the simulation, and the effectiveness and rapidity of the proposed identification algorithm are verified by the combined load method simulation comparison. The simulation results show that the accuracy of the proposed identification algorithm is more than 99%, the identification time is 3.36 s, which is much higher than that of other methods, and the operation time is less than that of other methods. Therefore, the proposed identification algorithm can effectively realize the nonintrusive industrial load identification.

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来源
《Journal of Electrical and Computer Engineering》 |2021年第2期|8287750.1-8287750.9|共9页
作者
Shuhui Yi; Hongxia Zhu; Junjie LiuJunnan Li;
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作者单位

China Electric Power Research Institute, Wuhan 430070, China;

State Grid Shandong Electric Power Company Marketing Service Center, Jinan 250001, China;

State Grid Henan Electric Power Company Marketing Service Center, Zhengzhou 450015, China;

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Nonintrusive Industrial Load Identification Combined with Random Forests and Steady-State Waveform

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