论文标题
通过离散控制设备启用的分发系统的快速资源调度
Fast Resource Scheduling for Distribution Systems Enabled with Discrete Control Devices
论文作者
论文摘要
本文提出了一个框架，用于通过连续控制设备（例如，逆变器接口DGS和离散控制设备（DCDS））（例如，ON-ON-ON-ON-LOAD TAP CHAMPHERS（OLTC））启用的分配系统中的快速短期和稳态电压控制。考虑到负载的电压依赖性性质，以通过管理电压水平来进一步降低工作成本。分支和切割方法用于处理与DCD的操作相关的完整性约束。应用了全球收敛的信任区域算法（TRA）来解决分支过程中每个节点的整数松弛问题。使用内点法解决了TRA子问题。为了减少分支的分支负担并切割算法，在每个节点应用TRA之前，首先解决了简化的优化问题。使用此问题的目标函数的收敛状态和价值，可以更快地决定停止有关分支。解决简化的问题可以避免大多数节点的应用。结果表明，根据数值研究，该方法在计算时间中有大量节省收敛到最佳解决方案。
This paper proposes a framework for fast short-term scheduling and steady-state voltage control in distribution systems enabled with both continuous control devices, e.g., inverter interfaced DGs and discrete control devices (dcds), e.g., on-load tap changers (oltcs). The voltage-dependent nature of loads is taken into account to further reduce the operating cost by managing the voltage levels. The branch and cut method is applied to handle the integrality constraints associated with the operation of dcds. A globally convergent trust-region algorithm (tra) is applied to solve the integer relaxed problems at each node during the branching process. The tra sub-problems are solved using the interior point method. To reduce the branching burden of the branch and cut algorithm, before applying tra at each node, a simplified optimization problem is first solved. Using the convergence status and value of the objective function of this problem, a faster decision is made on stopping the regarding branch. Solving the simplified problem obviates the application of tra at most nodes. It is shown that the method converges to the optimal solution with a considerable saving in computation time according to the numerical studies.
