电力系统潮流分解协调并行计算

Decomposition and Coordination Power Flow Parallel Calculation

现代大规模电力系统计算问题规模非常巨大,现有计算模式的计算速度已经无法满足实时计算的要求。为此,研究了PC机群计算环境下的电力系统潮流计算模型,结合基于节点分割的网络分块方法和PC机群环境的特性,提出了一种基于网络数学分割的电力系统潮流分解协调算法,将大规模互联电力系统分解成若干子网络,通过分配于各个PC机的各个子网络之间的分解协调计算获取加速比。利用该法对IEEE标准系统进行了潮流计算,结果表明该算法具有较高的加速度和计算精度,适合在网络计算环境中实现。

The scale of modern power system becomes more and more large,and the present serial computing modes have been unable to meet the current requirements.A mathematic algorithm of parallel power flow calculation build on cluster of PCs was proposed,which combines the node splitting methods and the characteristic of PCs cluster condition,and then,presents a decomposition and corrdination power flow calculation based on network partition in mathematic form.When a large-scale interconnected power system is decomposed,the accelerated ratio to each PC,through the decomposition and coordination calculation between every PC machine,is assigned.Test results of IEEE standard systems show that the proposed algorithm has high acceleration and accuracy,which makes the algorithm feasible in network computing environment.