辐射型配电网重构的二次电流矩法

根据辐射型配电网开环运行的结构特点,定义了关于节点的逆流路径、阻抗距离和等效二次电流等概念,形成二次电流矩模型,提出和证明了二次电流矩定理。定理表明:辐射型配电网任何逆流路径的二次电流矩等于该路径的功率损失。二次电流矩杠杆平衡角度的分析结论是:辐射型配电网运行的优化程度取决于二次电流矩杠杆的均衡程度。由此形成了辐射型配电网重构二次电流矩的杠杆模型,并且以这个模型为基础形成了一种辐射型配电网重构的方法。方法的物理概念清楚、计算过程简捷可靠,具有实用价值。

The Quadratic Current Moment Method for Radial Distribution Network Reconfiguration

As the distribution network is operated as open circuit,the concepts of upstream path,impedance distance and nodal equivalent current are given and the quadratic current moment(QCM)model for radial distribution network is proposed.QCM theorem is put forward and proved accordingly.The theorem indicates that QCM equals network power loss of the upstream path of the node.Using the conception of Pry Bar Model,the relationship between optimization and load balance of radial distribution network is discussed from the viewpoint of QCM.A conclusion is drawn that the optimization result of distribution network operation is determined by the pry bar balance degree of QCM.The pry bar model of QCM is formed for solving the problem of distribution network reconfiguration.This method has clear physical meaning,which is simple and direct for analysis and calculation in radial distribution network.