基于稀疏技术的快速高斯-赛德尔潮流算法  

A fast Gauss-Seidel power flow algorithm for power system based on sparse technology

作　　者：陈恳[1] 魏艺君 熊哲浩 戴雨心 廖嘉文 CHEN Ken;WEI Yijun;XIONG Zhehao;DAI Yuxin;LIAO Jiawen(School of Information Engineering,Nanchang University,Nanchang 330031,China;State Grid Jiangxi Construction Company,Nanchang 330077,China)

机构地区：[1]南昌大学信息工程学院,江西南昌330031 [2]国网江西省电力有限公司建设分公司,江西南昌330077

出　　处：《南昌大学学报（工科版）》2020年第1期85-89,97,共6页Journal of Nanchang University(Engineering & Technology)

基　　金：南昌大学研究生创新专项资金项目(CX2018154)。

摘　　要：针对高斯-赛德尔潮流算法利用节点电压方程和节点功率方程直接迭代的特点,提出基于稀疏技术的快速高斯-赛德尔潮流算法。其中包括建立以一维方式存贮的二维数组形式的Y(n,d)数据文件,以大大减少存贮单元数并大大提高数据文件的读写速度;读出的一维方式的数据文件可直接构成二维Y(n,d)数组;直接利用Y(n,d)数组完成基于稀疏技术的潮流计算而无需非零判断。此外,比较最佳加速因子的取值精度对计算结果和迭代次数的影响以避免冗余计算;利用改进的加速因子试探法快速确定最佳加速因子以减少潮流计算次数。Y(n,d)数组与传统Y(n,2n)数组相比,其数据文件的读写速度和潮流计算速度均大大提高,且系统规模越大,优势越明显。Aiming at the characteristic of direct iteration on the bus voltage equation and bus power equation in Gaussian-Seidel power flow algorithm,a fast one based on sparse technology was proposed.It included that the Y(n,d)data files in the form of two-dimensional array was established and stored in one dimension,which was greatly reduced the numbers of storage units and greatly improved the speed of reading and writing data files.Meanwhile,the one dimension data file read can directly form a two-dimensional Y(n,d)array,and that Y(n,d)array can be directly used to complete power flow calculation based on sparse technology without non-zero judgment.Additionally,the influence of the accuracy of the best accelerated factor on the calculation results and the number of iterations was compared to avoid redundant calculation,and an improved trial method for accelerating factor was used to determine the best accelerating factor quickly to reduce the calculation times on power flow.Compared with the Y(n,d)array and the traditional Y(n,2n)array,the reading-writing speed on the data file and power flow calculating speed were greatly improved with larger system scale and more advantages.

关 键 词：高斯-赛德尔潮流算法 稀疏技术 加速因子 改进试探法 电力系统 

分 类 号：TM315[电气工程—电机]