临近电压稳定极限的潮流和静稳极限算法

An Algorithm for the Load Flow Solution Close to the Voltage Stability Limit and the Determination of Static Voltage Stability Limit

本文提出重负荷节点电纳模型的常规潮流算法，改变了临界点附近雅可比矩阵的最小模特征值，解决了重负荷条件下潮流计算的收敛困难问题。利用该算法可以很方便地解出临近电压稳定极限的重负荷潮流和电压静稳极限。通过矩阵扰动的理论证明并用实例验证了它的有效性和适用性，从而为电压稳定的研究提供了一种简便、有效的算法。

This paper develops a conventional load flow algorithm by using a susceptance model in the heaviest load bus. With the algorithm it is very easy to find out the power flow under heavily loading condition, as well as the static voltage stability limit.Since the smallest module eigenvalue of Jacobian matrix is changed in the model, the problem of convergent difficulty of the load flow computation in the case of heavly loading is avoided. The applicability of the algorithm has been verified by the matrix disturbed theory and the tested samples. It is a simple and effective algorithm for the study of voltage stability.