基于直角坐标的电力系统潮流计算方法研究

Research on Power System Power Flow Calculating Method Based on the System of Coordinate

潮流计算是电力系统规划和安全分析的基础,目前较常用的潮流计算方法有牛顿法和PQ分解法,其雅克比矩阵在每次迭代中都是变化的,计算量较大。以直角坐标形式推导常数雅克比矩阵的潮流计算形式,将迭代过程中的电压实部和虚部的增量附加给有功和无功功率不平衡量,得到常数雅克比矩阵方程。用matlab软件进行编程仿真,计算结果显示,与传统牛顿法相比,其计算形式更加简单,且计算结果较好。

Flow calculation is the power system planning and security analysis on the basis of current trends more com- monly used calculation method Newton method and PQ decomposition method, the Jacobian matrix in each iteration are changing, large amount of calculation. In this paper, rectangular form Jacques calculated ratio is derived constant trend in the form of a matrix, the iterative process of incremental real and imaginary parts of the voltage added to the active and reactive power unbalance get constant Jacobian matrix equation. Simulation using matlab software programming, the re- suits show that,compared with the traditional Newtong method,which is calculated in the form of a more simple and the results better.