论文标题
低碳电力系统中惯性的经济价值
Economic Value of Inertia in Low-Carbon Power Systems
论文作者
论文摘要
大多数可再生能源（RES）不提供任何惯性响应。它们在功率网格中的集成意味着高度降低的系统惯性水平，从而导致频率性能恶化。然后，为了保持频率安全性，对频率响应的要求大大增加。另外，从辅助来源加强惯性的提供可能会减轻此问题。但是，惯性条款的好处尚未完全理解。 在本文中，应用了依赖惯性的随机单位承诺（SUC）工具来量化惯性的经济价值。结果表明，增强的惯性提供将导致大量的经济节省，尽管这些节省在不同的系统条件下有所不同。这些结果应引起市场运营商和投资者的注意，以告知惯性辅助服务市场的设计以及对惯性辅助提供的投资。
Most renewable energy sources (RES) do not provide any inertial response. Their integration in a power grid implies a highly reduced level of system inertia, which leads to a deteriorated frequency performance. Then, the requirement for frequency response is significantly increased in order to maintain frequency security. Alternatively, enhanced provision of inertia from auxiliary sources may alleviate this problem. However, the benefits of inertia provision are not yet fully understood. In this paper, an inertia-dependent Stochastic Unit Commitment (SUC) tool is applied to quantify the economic value of inertia. The results demonstrate that enhanced provision of inertia would lead to significant economic savings, although these savings vary under different system conditions. These results should be brought to the attention of both market operators and investors, in order to inform the design of an ancillary-services market for inertia and the investment in auxiliary provision of inertia.
