论文标题
需求变化对ACOPF问题的凸松弛方法的紧密程度影响
Demand Variation Impact on Tightness of Convex Relaxation Approaches for the ACOPF Problem
论文作者
论文摘要
本文研究了电力系统需求的变化对AC最佳功率流（ACOPF）问题的凸松弛方法采购的解决方案质量的影响。这项研究需要采取各种措施来评估凸松弛方法获得的解决方案的紧密度。因此，采取了三种紧密度措施，以说明在不同需求场景下凸出放松方法的性能。凸松弛方法的主要问题是恢复一种最佳解决方案，这对于具有循环的网络中的原始非凸问题不一定是可行的。因此，引入了一个循环度量以评估放松方案的性能。提出的案例研究调查了使用各种紧密度措施评估不同情况下各种松弛方法的性能的优点。
This paper investigates the impact of the changes in the demand of power systems on the quality of the solution procured by the convex relaxation methods for the AC optimal power flow (ACOPF) problem. This investigation needs various measures to evaluate the tightness of the solution procured by the convex relaxation approaches. Therefore, three tightness measures are leveraged to illustrate the performance of convex relaxation methods under different demand scenarios. The main issue of convex relaxation methods is recovering an optimal solution which is not necessarily feasible for the original non-convex problem in networks with cycles. Thus, a cycle measure is introduced to evaluate the performance of relaxation schemes. The presented case study investigates the merit of using various tightness measures to evaluate the performance of various relaxation methods under different circumstances.
