Non-intrusive residential load identification based on load feature matrix and CBAM-BiLSTM algorithm

Autor: Shunfu Lin, Bing Zhao, Yinfeng Zhan, Junsu Yu, Xiaoyan Bian, Dongdong Li
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Frontiers in Energy Research, Vol 12 (2024)
Druh dokumentu: article
ISSN: 2296-598X
DOI: 10.3389/fenrg.2024.1443700
Popis: With the increasing demand for the refined management of residential loads, the study of the non-invasive load monitoring (NILM) technologies has attracted much attention in recent years. This paper proposes a novel method of residential load identification based on load feature matrix and improved neural networks. Firstly, it constructs a unified scale bitmap format gray image consisted of multiple load feature matrix including: V-I characteristic curve, 1–16 harmonic currents, 1-cycle steady-state current waveform, maximum and minimum current values, active and reactive power. Secondly, it adopts a convolutional layer to extract image features and performs further feature extraction through a convolutional block attention module (CBAM). Thirdly, the feature matrix is converted and input to a bidirectional long short-term memory (BiLSTM) for training and identification. Furthermore, the identification results are optimized with dynamic time warping (DTW). The effectiveness of the proposed method is verified by the commonly used PLAID database.
Databáze: Directory of Open Access Journals