电网故障计算通用程序设计

A Design of Universal Program for Power Grid Fault Calculation

通过引入虚拟支路和虚拟节点,建立了虚拟故障端口。以虚拟故障端口为边界,将故障电网划分为对称网络和不对称网络两部分,给出了电网故障计算的通用方法。基于此方法,运用Visual Basic 6.0,设计开发了一个电网故障计算的通用程序。此程序具有良好的人机界面,计算速度快、计算结果准确。文中最后以某电网为例进行了计算,其结果验证了程序的有效性。

By introducing the fictitious branch and fictitious node, the fictitious fault port is created. By taking fictitious fault ports as boundary, the faulted power grid is separated into symmetrical network and unsymmetrical network, and a universal method for power grid fault calculation is given. Based on the method and by using Visual Basic 6.0, a universal program for power grid fault calculation is designed, The program has a good man-machine interface and it is effective and precise. In the end a power grid is analyzed as an example, the result shows the effective of the program.