标题： 光伏-储能家庭的最优运行策略：平衡自用电和自给自足 显示英文标题

标题： Optimal Operating Strategy for PV-BESS Households: Balancing Self-Consumption and Self-Sufficiency

摘要： 光伏（PV）发电和电池储能系统（BESS）在单个家庭中的高渗透率增加了对确定最佳光伏发电功率和BESS容量的解决方案的需求。 自用和自给自足对于优化家庭光伏-电池储能系统（PV-BESS）的运行至关重要，旨在最小化从主电网进口和出口的电力。 然而，自用和自给自足并不是独立的；它们之间存在线性关系。 本文展示了这种关系，并提出了一种最优运行策略，考虑了电力生成和消费配置，以最大化配备PV-BESS的家庭的自用和自给自足。 我们将自用和自给自足模式根据每个家庭的自给率与自用率的比率分为四类，并使用数学计算和该比率来确定最佳的光伏发电和BESS容量。 然后，使用模型预测控制（MPC）和基于强化学习（RL）的电池充放电调度模型对每类的最佳运行值进行仿真。 结果表明，自用与自给之间的比率是确定PV-BESS系统最佳容量的有用指标，以最大化光伏发电的本地利用率。 显示英文摘要

摘要： High penetration of Photovoltaic (PV) generation and Battery Energy Storage System (BESS) in individual households increases the demand for solutions to determine the optimal PV generation power and the capacity of BESS. Self-consumption and self-sufficiency are essential for optimising the operation of PV-BESS systems in households, aiming to minimise power import from and export to the main grid. However, self-consumption and self-sufficiency are not independent; they share a linear relationship. This paper demonstrates this relationship and proposes an optimal operating strategy that considers power generation and consumption profiles to maximise self-consumption and self-sufficiency in households equipped with a PV-BESS. We classify self-consumption and self-sufficiency patterns into four categories based on the ratio of self-sufficiency to self-consumption for each household and determine the optimal PV generation and BESS capacities using both a mathematical calculation and this ratio. These optimal operation values for each category are then simulated using Model Predictive Control (MPC) and Reinforcement Learning (RL)-based battery charging and discharging scheduling models. The results show that the ratio between self-consumption and self-sufficiency is a useful metric for determining the optimal capacity of PV-BESS systems to maximise the local utilisation of PV-generated power.