基于并行计算和数据复用的快速静态安全校核技术

Fast Computing Technologies for Static Security Checking Based on Parallel Computation and Data Reuse

随着跨区互联大电网的形成以及多级调度一体化对发电计划编制的要求,面向发电计划的96时段静态安全校核的计算量越来越大,需要进一步提高计算速度以满足相关应用的实用化需求。文中分析了96时段静态安全校核的计算特点,从算法优化、并行计算、数据复用等角度提出了基于直流潮流筛选的快速扫描技术、面向多时段断面的多进程并行计算技术、基于拓扑特征关联性分析的数据复用技术和面向单时段断面的多线程并行计算技术等4种快速计算技术。实际电网的测试结果表明,所述技术能显著提高96时段静态安全校核的计算速度。

With the formation of interconnected power grid of China as well as the requirement of integration of power generation scheduling among multi-level dispatching centers, it is increasingly imperative to improve the speed of the 96-period cases＇ security analysis for generation scheduling. Based on an analysis of the security characteristics, four fast computation methods are presented in terms of algorithm optimization, parallel computation, data reuse and other aspects, namely, the fast contingencies filtering, multi-process parallel computation for multi-period cases, data reuse based on topological characteristics and multi-thread parallel computation for a multi-contingency case. Detailed test examples of real power grids show that the methods proposed are effective in significantly improving the speed of 96-period cases＇ security analysis.