考虑节点度紧致化的最优主动解列模型

Optimal Controlled Islanding Model Considering Compactification Based on Degree

为解决主动解列模型的连通性和解列模型趋于复杂化导致计算效率下降的问题,本文提出了考虑节点度紧致化的主动解列模型。首先基于单商品流的思想,提出保证孤岛连通性的解析约束;再结合主动解列自身特点和复杂网络中度的概念,提出一种模型紧致化方法以压缩混合整数规划模型的可行域;最后以切负荷与最小潮流中断之和最小为目标求取最优的解列断面。所提模型能保证孤岛内的连通性并且能够较快地求解大型系统的解列问题。3个测试系统的仿真实验表明了该模型的有效性和快速性。

To solve the problems of connectivity in a controlled islanding model and the decrease in computational effi-ciency caused by the complexity of the model,a controlled islanding model considering compactification based on de-gree is proposed in this paper.First,based on the idea of a single commodity flow,a parsing constraintis put forward to ensure the island connectivity.Then,with the combination of the characteristics of controlled islanding and the concept of complex network degree,a model compactification method is proposed to compress the feasible regions of the mixed integer programming model.Finally,the optimal islanding splitting section is obtained with the objective of minimizing the sum of load shedding and minimum power flow interruption.The proposed model can guarantee the connectivity within the island and rapidlysolve the islanding problem of large-scale systems.The simulation results of three test sys-tems show that this model is effective and can be solved with a high efficiency.