用共轭梯度法并行实现电力系统动态仿真方法

[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference Pub Date : 1991-05-07 DOI:10.1109/PICA.1991.160616

I. C. Decker, D. Falcão, E. Kaszkurewicz

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引用次数: 59

摘要

给出了一种电力系统暂态稳定分析动态仿真方法在并联式计算机上的并行实现试验结果。该测试系统是巴西南部-东南部互联电力系统的计划配置，该系统有616条母线、995条线路和88台发电机。计算机仿真中所使用的并行机是一个以超立方体拓扑结构排列的分布式内存多处理器。这些节点基于具有4mb本地内存的Inmos T800处理器。仿真方法采用交错交替隐式积分法，将网络方程重新排序，使网络导纳矩阵以块边对角线形式出现，然后结合LU分解和共轭梯度法进行求解。结果表明，仿真时间大大缩短。

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Parallel implementation of a power system dynamic simulation methodology using the conjugate gradient method

Results of tests with a parallel implementation of a power system dynamic simulation methodology for transient stability analysis in a parallel computer are presented. The test system is a planned configuration of the interconnected Brazilian South-Southeastern power system with 616 buses, 995 lines, and 88 generators. The parallel machine used in the computer simulation is a distributed memory multiprocessor arranged in a hypercube topology architecture. The nodes are based on the Inmos T800 processor with 4 MBytes of local memory. The simulation methodology is based on the interlaced alternating implicit integration scheme in which the network equations are reordered such that the network admittance matrix appears in the block bordered diagonal form and then is solved by a combined application of the LU factorization and the conjugate gradient method. The results obtained show considerable reductions in the simulation time.<>

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[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference

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