Power Quality Data Compression and Disturbances Recognition Based on Deep CS-BiLSTM Algorithm With Cloud-Edge Collaboration

Frontiers in Energy Research

Yingjie Lv¹  ShouZhi Wang¹  Bo Zhang¹  Chen Chen²  Haipeng Chen³  Xin Xia⁴  Chuanliang He⁴ 

[1] Beijing Electric Power Science and Smart Chip Technology Company Limited, Beijing, China;College of Instrumentation and Electrical Engineering, Jilin University, Changchun, China;Department of Electrical Engineering, Northeast Electric Power University, Jilin, China;State Grid Laboratory of Power Line Communication Application Technology, Beijing Smart-Chip Microelectronics Technology Co., Ltd., Beijing, China;

关键词: distributed compressed sensing;    power quality disturbance classification;    bidirectional long-short memory network;    edge algorithm and cloud edge collaboration;    parameter optimization;    DDPG algorithm;   

DOI  :  10.3389/fenrg.2022.874351

来源: DOAJ

【 摘 要 】

The current disturbance classification of power quality data often has the problem of low disturbance recognition accuracy due to its large volume and difficult feature extraction. This paper proposes a hybrid model based on distributed compressive sensing and a bi-directional long-short memory network to classify power quality disturbances. A cloud-edge collaborative framework is first established with distributed compressed sensing as an edge-computing algorithm. With the uploading of dictionary atoms of compressed sensing, the data transmission and feature extraction of power quality is achieved to compress power quality measurements. In terms of data transmission and feature extraction, the dictionary atoms and measurements uploaded at the edge are analyzed in the cloud by building a cloud-edge collaborative framework with distributed compressed sensing as the edge algorithm so as to achieve compressed storage of power quality data. For power disturbance identification, a new network structure is designed to improve the classification accuracy and reduce the training time, and the training parameters are optimized using the Deep Deterministic Policy Gradient algorithm in reinforcement learning to analyze the noise immunity of the model under different scenarios. Finally, the simulation analysis of 10 common power quality disturbance signals and 13 complex composite disturbance signals with random noise shows that the proposed method solves the problem of inadequate feature selection by traditional classification algorithms, improves the robustness of the model, and reduces the training time to a certain extent.

【 授权许可】

Unknown