Dynamics Power Quality Cost Assessment Based on a Gradient Descent Method

Autor: Jingyi Zhang, Tongtian Sheng, Pan Gu, Miao Yu, Jiaxin Yan, Jianqun Sun, Shanhe Liu
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Energies, Vol 17, Iss 9, p 2104 (2024)
Druh dokumentu: article
ISSN: 1996-1073
DOI: 10.3390/en17092104
Popis: The escalating demand for power load is increasingly prone to triggering power quality (PQ) issues, leading to severe economic losses. Aiming at reducing the economic losses, this paper focuses on the coordinated relationship between PQ and economic costs. Firstly, a multilayer multiple linear stepwise regression method is employed to screen PQ indicators, identifying harmonic and voltage deviation as the primary influencing factors of PQ. Secondly, a gradient descent optimization algorithm based on the Least Absolute Shrinkage and Selection Operator (LASSO) is proposed, enabling rapid computation of the minimum PQ cost. Finally, through validations of two case studies, the results confirm that the proposed method can rapidly calculate the minimum PQ cost based on real-time load demands, enabling the dynamic adjustment of PQ cost to meet the evolving needs of power system development.
Databáze: Directory of Open Access Journals