|SUN Xiaorong,YANG Shuangshuang,PAN Xueping,GUO Jinpeng,QIN Jinghui.Energy sharing and cooperative scheduling of multi-regional integrated energy system under transactive energy mechanism[J].Electric Power Automation Equipment,2023,43(11):9-17
|关键词: 多区域综合能源系统 分布式优化 能源共享 代理增广拉格朗日松弛
|Energy sharing and cooperative scheduling of multi-regional integrated energy system under transactive energy mechanism
SUN Xiaorong, YANG Shuangshuang, PAN Xueping, GUO Jinpeng, QIN Jinghui
College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China
|Under the demand of energy sharing, the centralized scheduling of multi-regional integrated energy system has the problems of multiple decision-making variables, complex constraints, difficult to protect the information privacy of regional subjects, and non-smooth convergence and slow convergence speed when adopting traditional distributed algorithms. Therefore, a multi-regional energy management framework for area system operators under the transactive energy mechanism is designed, a stochastic optimization model for energy sharing day-ahead scheduling considering the uncertainty of renewable energy sources is established, and an absolute value function-based linearized surrogate augmented Lagrangian relaxation algorithm is constructed to solve the problem. Based on the proposed model and algorithm, the area system operators set inter-regional trading prices according to the initial supply and demand information submitted by each region, and each region optimizes the equipment output and the transactive energy capacity with the goal of minimizing the operation cost, carbon emission cost and photovoltaic abandonment cost, and performs iterative clearing. The numerical results show that the proposed model can effectively improve the operation benefits of regions and renewable energy consumption, and the proposed algorithm has more advantages in solving speed and solving quality than the commonly used distributed algorithms.
|Key words: multi-regional integrated energy system distributed optimization energy sharing surrogate augmented Lagrangian relaxation