基于改进牛顿算法的配电网潮流计算

Distribution Power Flow Calculation Based on the Improved Newton Raphson

在配电系统分析中,配电网潮流计算是一项非常重要的内容,它通过给定网络的结构及运行条件来确定各结点电压幅值和相角、网络中功率分布及功率损耗等,从而确定整个配电网络的电气状态。同时通过越界检查,了解和评价整个配电系统的运行状况。收敛问题在配电网的潮流计算中受到格外重视,改进牛顿算法具有二阶收敛性,并可方便地应用于状态估计,是求解辐射状配电网潮流的有效算法,具有简单、灵活、方便的特点。文章结合具体算例,利用MATLAB编程语言研究改进牛顿算法在配电网潮流计算中的应用。

Distribution power flow calculation is an important content of distribution system analysis. It is based on the structure and operating conditions of a given network to determine the electrical state of the entire network, each node voltage magnitude phase angle, the power distribution network and the power loss, and bounds checking, in order to under stand and evaluate the distribution operational status of the system. Convergence problems in the flow calculation of the distribution network has posed special attention, the improved Newton method has quadratic convergence, and can be easily applied to the state estimation ,and to be the effective algorithm of solving the radial distribution power flow , it has simple, flexible and convenient features. This paper will combine the specific examples, using MATLAB programming language to research the application of the improved Newton method in the distribution power flow calculation.