配电网的回路阻抗法潮流计算与仿真可视化

Distribution systems load flow based on loop-impedance equations and simulation visualization

摘要:

为快速、生动形象地模拟仿真配电网运行状况，本文提出了一种用于配电网快速潮流计算和仿真信息可视化的新方法：基于十字链表与关联矩阵，给出了阻抗矩阵生成算法；提出了基于right-looking LU分解法的并行Gauss消去算法，利用GPU加速求解回路阻抗方程组；采用GIS和虚拟现实技术对潮流计算结果进行仿真可视化。仿真算例表明该方法对节点编号无特殊要求，适用于有环、无环的配电网潮流计算，具有计算速度快、精度高、仿真结果显示直观形象的优点。

Abstract:

A novel method of the load flow and simulation information visualization is proposed for simulating quickly and vividly the operation status of distribution systems. Combining the orthogonal list save distribution system topology and incidence matrix reflect current flow, an impedance matrix generation algorithm was designed to automatically calculate every matrix elements; a parallel Gussian elimination algorithm based on right-looking LU factorization was put forward, in order to accelerate the loop-impedance matrix equations solving by GPU; GIS and virtual reality technologies were used to visualize the result of load flow. Simulation examples show this method hasn’t special requirement for the node numbering scheme and is suitable for load flow of the radial and the meshed distribution networks for its rapid computation, high precision and visual intuitionistic display about simulation result.