Optimal Network Topology for Node-Breaker Representations With AC Power Flow Constraints
Optimal Network Topology for Node-Breaker Representations With AC Power Flow Constraints
复制标题
具有交流潮流约束的节点断路器表示的最优网络拓扑
作者：
Byungkwon Park;C. DeMarco
网络拓扑优化（NTO）可以改变电力系统网络的拓扑结构，从而提供额外的灵活性，以减少网络拥塞和违规。大多数NTO问题制定的基础上，总线分支模型，它是具有挑战性的，以代表所有变电站配置的现实画面。在本文中，我们探索的优势，变电站重构模型的基础上，节点断路器表示的NTO问题的完全非线性交流潮流。通过外逼近法，给出了求解该非凸混合整数非线性规划的裁剪算法。所提出的解决方案的方法迭代之间的混合整数线性规划和非线性子问题。说明了进一步加速迭代过程的其他增强。数值案例研究表明，相对的经济和运营的影响，最佳网络拓扑结构与节点断路器表示。
It has been demonstrated that network topology optimization (NTO) may change the topology of power system networks, and consequently, provide additional flexibility to reduce network congestion and violations. Most NTO problems are formulated based on the bus-branch model in which it is challenging to represent a realistic picture of all substation configurations. In this paper, we explore advantages of substation reconfiguration modeling based on node-breaker representations for NTO problem with full nonlinear alternating current power flow. It also proposes a tailored solution algorithm to solve this nonconvex mixed-integer nonlinear programming through the outer approximation method. The proposed solution approach iterates between a mixed-integer linear programming and a nonlinear subproblem. Additional enhancements to further accelerate the iteration process are illustrated. Numerical case studies demonstrate the relative economic and operational impact of optimal network topology with node-breaker representations.