论文标题
汇总V2G充电器的频率响应不确定的EV连接
Frequency Response from Aggregated V2G Chargers With Uncertain EV Connections
论文作者
论文摘要
快速响应（FR）在低惯性系统中发电机中断后确保频率动态非常有效。配备车辆电网（V2G）充电器的电动汽车（EVS）将来可以提供大量的FR来源。但是，与V2G聚合相关的不确定性是由于停电时连接的电动汽车数量不确定的驱动，但尚未完全了解并阻止其参与现有的服务提供框架。为了应对此限制，本文首次将这种不确定性纳入了系统频率动力学中，概率的NADIR和稳态频率要求通过基于派生的基于我物病的分布分布量限制来实现。分析了来自25,000多个充电器的现场数据，以提供现实的参数和连接预测，以检查GB 2030系统年度运行中V2G充电器的FR值。案例研究表明，可以通过拟议的调度框架有效地管理电动汽车连接的不确定性，这导致每个充电器每年节省6,300英镑或37.4 TCO2。探索了该值对可再生能力和FR延迟的敏感性，V2G容量显示为三分之一，与相同的网格电池容量一样有价值。
Fast frequency response (FR) is highly effective at securing frequency dynamics after a generator outage in low inertia systems. Electric vehicles (EVs) equipped with vehicle to grid (V2G) chargers could offer an abundant source of FR in future. However, the uncertainty associated with V2G aggregation, driven by the uncertain number of connected EVs at the time of an outage, has not been fully understood and prevents its participation in the existing service provision framework. To tackle this limitation, this paper, for the first time, incorporates such uncertainty into system frequency dynamics, from which probabilistic nadir and steady state frequency requirements are enforced via a derived momeent-based distributionally-robust chance constraint. Field data from over 25,000 chargers is analysed to provide realistic parameters and connection forecasts to examine the value of FR from V2G chargers in annual operation of the the GB 2030 system. The case study demonstrates that uncertainty of EV connections can be effectively managed through the proposed scheduling framework, which results in annual savings of £6,300 or 37.4 tCO2 per charger. The sensitivity of this value to renewable capacity and FR delays is explored, with V2G capacity shown to be a third as valuable as the same grid battery capacity.
