Duck-Curve Mitigation in Power Grids With High Penetration of PV Generation
Duck-Curve Mitigation in Power Grids With High Penetration of PV Generation
复制标题
光伏发电高渗透率电网中的鸭子曲线缓解
DOI：
10.1109/tsg.2021.3122398
复制
发表时间：
2022
影响因子：
9.6
通讯作者：
R. Baldick
中科院分区：
文献类型：
--
作者：
Ivan Calero;C. Cañizares;Kankar Bhattacharya;R. Baldick
在几个太阳辐射较高的司法管辖区，小型光伏发电已受到住宅客户的欢迎，作为改善碳足迹和减少电费的替代方案。然而，这种分布式发电的大规模部署正在形成一种特殊且不理想的净需求形状，这种形状在中午太阳能光伏发电高峰时段加深，并在傍晚突然上升，即所谓的“鸭子曲线”。因此，本文研究了住宅中使用预冷策略来减轻鸭曲线效应的情况。为此，首先基于滑铁卢大学开发的智能住宅负荷模拟器（SRLS）开发并进行适当的房屋热模型和模拟，以证明在典型配置的房屋中预冷的技术可行性。然后，提出了一种聚合技术来评估不同光伏渗透水平对大型电网的影响，以及管理加利福尼亚州和德克萨斯州鸭子曲线的预冷却方法，得出的结论是，此类技术能够大幅平坦化系统净需求曲线。
Small-scale PV generation has become popular with residential customers in several jurisdictions with high solar radiation, as an alternative to improve their carbon footprint and reduce their electricity bills. However, massive deployment of such distributed generation is creating a particular and undesirable shape in the net demand, which deepens at hours of peak solar PV injections at noon and suddenly rises towards the evening, known as the “duck curve”. Hence, this paper investigates the use of pre-cooling strategies in residential households to mitigate the duck-curve effects. To this aim, appropriate thermal models and simulations of houses are first developed and carried out to demonstrate the technical feasibility of pre-cooling in a house with a typical configuration, based on the Smart Residential Load Simulator (SRLS) developed at the University of Waterloo. Then, an aggregation technique is proposed to evaluate the effects on a large grid of different penetration levels of PV, and pre-cooling approaches to manage the duck-curve in California and Texas, concluding that such techniques are capable of substantially flattening the system net demand curve.