Two-stage real-time optimal electricity dispatch strategy for urban residential quarter with electric vehicles' charging load. (1st April 2023)

• Record Type: Journal Article
• Authors: Li, Yipu; Su, Hao; Zhou, Yun; Chen, Lixia; Shi, Yiwei; Li, Hengjie; Feng, Donghan
• Is Part Of: Energy. Volume 268(2023)
• Publication Date: 2023-04-01
• Subjects: Optimal electricity dispatch -- Electric vehicle -- Residential quarter -- Two-stage -- Real-time; Power resources -- Periodicals; Power (Mechanics) -- Periodicals; Energy consumption -- Periodicals; 333.7905
• DOI: 10.1016/j.energy.2023.126702
• Languages: English
• ISSNs: 0360-5442

Abstract

Abstract: The potential of demand-side management and the schedulable ability of electric vehicles (EVs) encourage demand-side management operators such as residential load aggregators to dispatch the electricity demand and supply of the residential quarter and enhance the economics and security of energy use. Considering the uncertainties in the arrival time, departure time, and charging amount of EVs, a two-stage real-time optimal electricity dispatch strategy for residential quarters with EVs' charging load is proposed here. First, a real-time optimal approach is proposed based on the receding horizon optimization process to decompose the day-ahead optimal period into sequential advanced optimization horizons. Second, considering the dual optimization goals of economics and security, a two-stage optimization procedure is proposed for the residential quarter's electricity dispatch in the advanced optimization horizon. Specifically, the first-stage optimization model aims to minimize the total cost of electricity of the residential quarter. And the second-stage optimization model is to minimize the peak-valley load difference of the residential quarter. Based on these models, a solving timeline with detailed steps for the proposed two-stage real-time optimal electricity dispatch strategy is presented. Finally, case studies on the data of a real residential quarter located in Shanghai demonstrate the effectiveness of the proposed methodology. Highlights: Requirements for residential quarter's electricity dispatch are analyzed. An effective two-stage real-time electricity dispatch method is proposed. Dual optimization goals of economics and security are considered. A clear solving timeline with detailed solving steps is presented. Case studies based on the data of a real residential quarter are conducted.