大型跨区域电网故障计算软件的面向对象实现

OBJECT-ORIENTED IMPLEMENTATION OF LARGE INTERCONNECTED POWER NETWORK FAULT CALCULATION SOFTWARE

随着全国电网互联的逐步实现,电力系统分析计算的复杂性和规模随之扩大,对各类实用化分析计算软件提出了新的要求。文中研究了考虑大型跨区域电网特点的故障计算软件的面向对象实现方法,从系统的类层次结构、数据和计算功能的分层封装、对基于节点导纳矩阵和节点阻抗矩阵的故障计算算法的综合应用,以及根据区域电网进行分区数据组织的方法对计算性能提高的作用等方面进行了全面深入的研究和分析。在此基础上开发的故障计算软件对于大型跨区域电网具有快速灵活全面的故障计算处理能力。

With the gradual interconnection of large regional power networks into a national power network, the burden of power system analysis and calculation is increased accordingly. So the power system analyzing and calculating software should duly match the new requirements. This paper puts forward an object-oriented implementation of the fault calculating software by taking into account the characteristics of the large interconnected power networks. Such problems as the category hierarchy, the hierarchical encapsulation of the calculating functions, the comprehensive application of the fault calculating algorithms based on the nodal admittance matrix and nodal impedance matrix, and how the regional algorithm influences the calculating performance are discussed at length. The software based on this scheme has been found to perform very well in fault calculation for large interconnected power networks.