Robust Reactive Power Scheduling of Distribution Networks Based on Modified Bootstrap Technique

Autor: Wenlong Liao, Shouxiang Wang, Birgitte Bak-Jensen, Jayakrishnan Radhakrishna Pillai, Zhe Yang
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Journal of Modern Power Systems and Clean Energy, Vol 12, Iss 1, Pp 154-166 (2024)
Druh dokumentu: article
ISSN: 2196-5420
DOI: 10.35833/MPCE.2022.000850
Popis: The uncertainties of the power load, wind power, and photovoltaic power lead to errors between point prediction values and real values, which challenges the safe operation of distribution networks. In this paper, a robust reactive power scheduling (RRPS) model based on a modified bootstrap technique is proposed to consider the uncertainties of power loads and renewable energy sources. Firstly, a deterministic reactive power scheduling (DRPS) model and an RRPS model are formulated. Secondly, a modified bootstrap technique is proposed to estimate prediction errors of power loads and renewable energy sources without artificially assuming the probability density function of prediction errors. To represent all possible scenarios, point prediction values and prediction errors are combined to construct two worst-case scenarios in the RRPS model. Finally, the RRPS model is solved to find a scheduling scheme, which ensures the security of distribution networks for all possible scenarios in theory. Simulation results show that the worstcase scenarios constructed by the modified bootstrap technique outperform popular baselines. Besides, the RRPS model based on the modified bootstrap technique balances economics and security well.
Databáze: Directory of Open Access Journals