论文标题
通过使用钒氧化还原流量电池每天预测充电的一种方法来实施光伏自我消费和坡道率控制算法
An Approach to Implement Photovoltaic Self-Consumption and Ramp-Rate Control Algorithm with a Vanadium Redox Flow Battery Day-to-Day Forecast Charging
论文作者
论文摘要
太阳资源的可变性主要是由云传播引起的，导致光伏（PV）系统输出的快速功率波动。波动可能会对电网产生负面影响，并且可以将平滑技术用作纠正它的尝试。但是，在文献中，PV+VRFB集成在建筑规模上应对极端功率的升值并没有消失，并且与其他能源管理策略（EMSS）结合使用了其有效性。这项工作的重点是使用VRFB来控制PV安装的功率输出，将坡道速率保持在非暴力限制范围内，并在电池状态（SOC）范围内保持坡道（SOC）范围，适合执行坡道速率管理。基于模型模拟，研究了能量键 - 性能指标（KPI），并实时验证。模拟了三个EMS：自我消费最大化（SCM）和具有RAMP速率控制（SCM+RR）的SCM，最后一个策略包括基于天气预测前一天（SCM+RR+WF）的夜间电池充电。结果表明，电池SOC管理控制对于将这些EMS应用于VRFB至关重要，并且在线天气预报在实时应用中被证明是有效的。 SCM+RR+WF是一种在冬季管理PV+VRFB系统的强大方法（研究应用程序），高光伏穿透性建筑区使其成为可行的方法。在经过研究的一周中，该策略成功控制了违反功率坡道的100％，也获得了59％的自我消费率（SCR）和61％的网格浮雕因子（GRF）。
The variability of the solar resource is mainly caused by cloud passing, causing rapid power fluctuations on the output of photovoltaic (PV) systems. The fluctuations can negatively impact the electric grid, and smoothing techniques can be used as attempts to correct it. However, the integration of a PV+VRFB to deal with the extreme power ramps at a building scale is underexplored in the literature, as well as its effectiveness in combination with other energy management strategies (EMSs). This work is focused on using a VRFB to control the power output of the PV installation, maintaining the ramp rate within a non-violation limit and within a battery state of charge (SOC) range, appropriate to perform the ramp rate management. Based on the model simulation, energy key-performance indicators (KPI) are studied, and validation in real-time is carried. Three EMSs are simulated: a self-consumption maximization (SCM), and SCM with ramp rate control (SCM+RR), and this last strategy includes a night battery charging based on a day ahead weather forecast (SCM+RR+WF). Results show a battery SOC management control is essential to apply these EMSs on VRFB, and the online weather forecast proves to be efficient in real-time application. SCM+RR+WF is a robust approach to manage PV+VRFB systems in wintertime (studied application), and high PV penetration building areas make it a feasible approach. Over the studied week, the strategy successfully controlled 100% of the violating power ramps, also obtaining a self-consumption ratio (SCR) of 59% and a grid-relief factor (GRF) of 61%.
