论文标题
径向分布网络的线性分支流模型及其在反应性功率优化和网络重新配置中的应用
A Linear Branch Flow Model for Radial Distribution Networks and its Application to Reactive Power Optimization and Network Reconfiguration
论文作者
论文摘要
本文介绍了一个冷启动的线性分支流模型，称为修饰的延伸。在修改后的延伸中，主动和反应性功率被其与电压幅度作为状态变量的比率与电压幅度所取代，因此，由于它们完全忽略了二次项的完全忽略而导致传统分支流量线性化方法引入的误差会减少。基于路径分支机构的入射矩阵，可以以非著作和明确的方式获得分支功率流和淋巴结幅度。随后，提出的修改后的散发模型应用于反应性功率优化和网络重新配置的问题，将其转换为混合构成二次编程（MIQP）。模拟表明，所提出的修改后的截距具有比现有的分布网络的现有冷启动线性分支流模型更高的精度，而所得的用于反应性功率优化和网络重新配置的MIQP模型在计算上比现有基准高得多。
This paper presents a cold-start linear branch flow model named modified DistFlow. In modified DistFlow, the active and reactive power are replaced by their ratios to voltage magnitude as state variables, so that errors introduced by conventional branch flow linearization approaches due to their complete ignoring of the quadratic term are reduced. Based on the path-branch incidence matrix, branch power flows and nodal voltage magnitudes can be obtained in a non-iterative and explicit manner. Subsequently, the proposed modified DistFlow model is applied to the problem of reactive power optimization and network reconfiguration, transforming it into a mixed-integer quadratic programming (MIQP). Simulations show that the proposed modified DistFlow has a better accuracy than existing cold-start linear branch flow models for distribution networks, and the resulting MIQP model for reactive power optimization and network reconfiguration is much more computationally efficient than existing benchmarks.
