Flexibility resource planning of a power system considering a flexible supply–demand ratio

Aiming at the problems of insufficient power system regulation capacity and lack of flexible resources caused by source-load uncertainty, the flexible resource planning of power systems is studied with the goal of improving flexibility. Uncertainty and flexibility are combined in this article, and a...

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Bibliographic Details
Published in:Frontiers in energy research Vol. 11
Main Authors: Zhang, Xiaotian, Lu, Mingxuan, Li, Hua, Gao, Fengxi, Zhong, Chongfei, Qian, Xiaoyi
Format: Journal Article
Language:English
Published: Frontiers Media S.A 04.07.2023
Subjects:
bi-level programming Problem
flexibility
power system
supply–demand ratio
uncertainty
ISSN:2296-598X, 2296-598X
Online Access:Get full text
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Summary:Aiming at the problems of insufficient power system regulation capacity and lack of flexible resources caused by source-load uncertainty, the flexible resource planning of power systems is studied with the goal of improving flexibility. Uncertainty and flexibility are combined in this article, and a probability index of an insufficiently flexible supply-demand ratio is proposed based on the probability characteristics of flexibility. A bi-level programming model of power system flexibility resources considering the probability of an insufficiently flexible supply demand ratio is constructed. Optimal economics is used as the objective function of the planning layer, and the proposed minimum probability index of the flexible supply-demand ratio is used as the objective function of the operations layer. Economics and flexibility are studied, taking the power system in a certain area in Northeast China as the research object. A flexible resource planning scheme that meets different flexibility expectations is obtained, and the scheme is discussed in detail from the aspects of system flexibility, economic cost, and new energy consumption capacity. The effectiveness of quantitative indicators and planning methods are verified.
ISSN:2296-598X
2296-598X
DOI:10.3389/fenrg.2023.1194595