提出动态基准方法,精准预测极端条件下的系统表现
Integrating Dynamic Correlation Shifts and Weighted Benchmarking in Extreme Value Analysis
- 融合极值理论与动态相关性识别,自动筛选关键变量
- 将极值预测值融入评分体系,提升未来风险预判准确率
- 适用于光伏等高风险领域,助力决策者发现潜在脆弱点
本文提出一种创新的极值分析方法——极值动态基准法(EVDBM),结合极值理论检测极端事件,并引入新型动态显著相关性识别(DISC)阈值算法,增强极端条件下关键变量的分析能力。通过将极值分析预测的重现值融入基准评分,使评分更准确反映未来预期状况。调整后的评分提供前瞻视角,揭示各案例在极端条件下的潜在脆弱性与韧性因素,这是静态历史数据无法捕捉的。该方法融合历史与概率信息,构建可适应多种场景的综合基准框架。以真实光伏数据验证,成功识别出关键低发电情景及变量间显著相关性,为风险管理、基础设施设计和长期规划提供支持,并实现不同发电厂间的对比评估。其灵活性表明在决策敏感性强的其他领域也具广泛应用潜力。
原文摘要 · Abstract (English)
This paper presents an innovative approach to Extreme Value Analysis (EVA) by introducing the Extreme Value Dynamic Benchmarking Method (EVDBM). EVDBM integrates extreme value theory to detect extreme events and is coupled with the novel Dynamic Identification of Significant Correlation (DISC)-Thresholding algorithm, which enhances the analysis of key variables under extreme conditions. By integrating return values predicted through EVA into the benchmarking scores, we are able to transform these scores to reflect anticipated conditions more accurately. This provides a more precise picture of how each case is projected to unfold under extreme conditions. As a result, the adjusted scores offer a forward-looking perspective, highlighting potential vulnerabilities and resilience factors for each case in a way that static historical data alone cannot capture. By incorporating both historical and probabilistic elements, the EVDBM algorithm provides a comprehensive benchmarking framework that is adaptable to a range of scenarios and contexts. The methodology is applied to real PV data, revealing critical low - production scenarios and significant correlations between variables, which aid in risk management, infrastructure design, and long-term planning, while also allowing for the comparison of different production plants. The flexibility of EVDBM suggests its potential for broader applications in other sectors where decision-making sensitivity is crucial, offering valuable insights to improve outcomes.
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