Title: Power load monitoring method of high-power electrical appliances based on energy compensation

Authors: Haitong Gu; Zhuo Cui; Kaiyan Chen; Zhengyang Peng; Shitao Chen

Addresses: Guangzhou Power Supply Bureau of Guangdong Power Grid Co. Ltd. Guangzhou 510080, China ' Guangzhou Power Supply Bureau of Guangdong Power Grid Co. Ltd. Guangzhou 510080, China ' Guangzhou Power Supply Bureau of Guangdong Power Grid Co. Ltd. Guangzhou 510080, China ' Guangzhou Power Supply Bureau of Guangdong Power Grid Co. Ltd. Guangzhou 510080, China ' Guangzhou Maxkwh Information Technology Co. Ltd., Guangzhou 510080, China

Abstract: In order to overcome the problems of low monitoring accuracy and long monitoring time existing in traditional power load monitoring methods, a new power load monitoring method based on energy compensation is proposed. The basic framework of high-power electrical load monitoring method is given. According to Fourier series, the active power of high-power electrical equipment during operation is obtained, and the current waveforms under various operation states are obtained. The sliding double-sided window cumulative calculation method is used to determine the load switching event data. At the same time, the characteristic indexes of power load curve are extracted by similarity measurement index. In feature extraction based on the result using the energy to complete the electrical load monitoring compensation method. The research results show that the proposed method has higher monitoring accuracy and shorter monitoring time, the shortest time is 0.02 s.

Keywords: energy compensation; high-power appliances; electrical load; active power; switching events.

DOI: 10.1504/IJGEI.2022.125414

International Journal of Global Energy Issues, 2022 Vol.44 No.5/6, pp.427 - 439

Received: 22 Jan 2021
Accepted: 13 May 2021
Published online: 08 Sep 2022 *

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