论文标题
故障概率限制了交流最佳功率流
Failure Probability Constrained AC Optimal Power Flow
论文作者
论文摘要
尽管失败是电力传输系统中停电的核心原因，但现有的运营和计划决定主要是通过忽略其潜在的级联潜力来做出的。本文提出了一种可靠性的交流最佳功率流式公式，该公式旨在设计一个调度点，该调度点具有较低的操作员指定的可能性，从任何单个组件中断开始触发级联反应。通过利用最近开发的组件故障概率的分析模型，我们的失败概率受限的ACOPF（FP-ACOPF）利用系统的预期第一故障时间作为级联风险的平稳可调且可解释的签名。我们使用来自二元优化和数值线性代数的技术来有效地制定和使用现成的求解器来解决FP-ACOPF。对IEEE 118-BUS案例进行了广泛的模拟表明，与不受限制和N-1安全受限的ACOPF相比，我们的概率受限的调度点可以显着降低长期严重级联和大量需求损失的概率，而仅产生了总发电成本的次要较小。
Despite cascading failures being the central cause of blackouts in power transmission systems, existing operational and planning decisions are made largely by ignoring their underlying cascade potential. This paper posits a reliability-aware AC Optimal Power Flow formulation that seeks to design a dispatch point which has a low operator-specified likelihood of triggering a cascade starting from any single component outage. By exploiting a recently developed analytical model of the probability of component failure, our Failure Probability-constrained ACOPF (FP-ACOPF) utilizes the system's expected first failure time as a smoothly tunable and interpretable signature of cascade risk. We use techniques from bilevel optimization and numerical linear algebra to efficiently formulate and solve the FP-ACOPF using off-the-shelf solvers. Extensive simulations on the IEEE 118-bus case show that, when compared to the unconstrained and N-1 security-constrained ACOPF, our probability-constrained dispatch points can significantly lower the probabilities of long severe cascades and of large demand losses, while incurring only minor increases in total generation costs.
