大规模水-火电力系统最优潮流的现代内点算法实现

AN IMPLEMENTATION OF INTERIOR POINT ALGORITHM FOR LARGE-SCALE HYDRO-THERMAL OPTIMAL POWER FLOW PROBLEMS

讨论了如何将现代内点非线性规划算法具体实现的问题。首先,定义了简约修正方程的变量和行的排列顺序,对简约修正方程进行行列变换,导出了一种由4T4T(T是调度周期)块状对角子矩阵组成的新的数据结构。此数据结构与节点导纳矩阵的结构相似,从而原问题的结构得到了充分利用,使得HTOPF问题易于编程与求解。为了清楚起见, 以一个4节点的简单电力系统为例展示了简约修正方程实现的过程。仿真结果表明: 所提算法具有良好的收敛特性和合理的计算时间,对于求解大规模系统问题具有广泛的应用前景。

The algorithm implementation of the HTOPF problems based on an interior point method.is discussed. The reduced correction equation with novel 4T×4T block diagonal sub matrices can be derived by exchanging rows and columns of a correction equation, where T is the number of time interval. Its topological structure is identical to that of the nodal admittance matrix, thus making the algorithm to be an efficient one. The simulation results verifies that the proposed algorithm possesses a good convergence property within a reasonable execution time, and hence, the algorithm is quite promising for large-scale applications.