用于大规模电力系统机电暂态实时仿真的并行网络拓扑算法

发布时间：2018-06-21 10:25

本文选题：并行计算 + 网络拓扑　；参考：《高电压技术》2016年01期

【摘要】：为在大规模电力系统机电暂态实时仿真中模拟厂站任意开关操作,提出了一种并行网络拓扑算法。算法首先定义一种电网主拓扑结构,并在此结构上应用基于优化边界表的网络分割算法,使得大量含有开关/刀闸的厂站主接线能完整地分配在子网中;然后在此基础上实现了一种基于消息传递接口(MPI)的电网并行拓扑算法,并定义了拓扑开关变位和断线故障之间的转换逻辑,以实现与机电暂态并行仿真程序集成。此算法没有增加已有机电暂态并行算法联络系统的复杂性,而是使厂站拓扑分析并行分布在子网中;同时为了加快拓扑分析与电网求解效率,使用了局部变化拓扑、导纳矩阵局部修改、部分因子分解技术。对被划分为14个子网的17984母线大电网案例测试表明:在Intel至强处理器E5450计算机上,并行拓扑算法能够获得超过19倍的超线性加速效果,实时模拟变电站运行而无需修改电网模型,总体效率能够满足实时仿真要求。
[Abstract]:A parallel network topology algorithm is proposed to simulate arbitrary switch operation in the real-time simulation of large-scale electrical power system . First , the algorithm defines a network topology and applies a network segmentation algorithm based on optimal boundary table , so that the main terminals of the plant that contain the switch / knife gate can be completely distributed in subnets ; Then , a parallel topology algorithm based on messaging interface (MPI) is implemented , and the conversion logic between topology switch and bolt fault is defined to realize the integration with the electromechanical transient parallel simulation program . This algorithm does not increase the complexity of the existing electromechanical transient parallel algorithm contact system , but makes the plant station topology analysis distributed in subnet ; In order to accelerate the efficiency of topology analysis and grid solving , local change topology , partial modification of admittance matrix and partial factorization are used . The case results show that the parallel topology algorithm can achieve more than 19 times superlinear acceleration in Intel to E5450 computer , and the real-time simulation of substation operation without the need to modify the grid model , the overall efficiency can meet the requirement of real time simulation .
【作者单位】：中国电力科学研究院;
【基金】：国家重点基础研究发展计划(973计划)(2013CB228203) 国家电网公司大电网重大专项(SGCC-MPLG001-031-2012)~~
【分类号】：TM743

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