因子表修正算法在电力系统暂态稳定计算中的应用研究  

Applicative Study of Factorization Modification in Power System Transient Stability Simulation

作　　者：邵朱夏 邵烨楠 SHAO Zhuxia;SHAO Yenan(State Grid Suzhou Power Supply Company,Suzhou 215004,China)

机构地区：[1]国网苏州供电公司,江苏苏州215004

出　　处：《电工技术》2024年第17期82-86,共5页Electric Engineering

摘　　要：总结了现有的电力系统暂态稳定仿真分析方法,指出暂态稳定计算数值积分方法中网络方程求解占用仿真时间多的特点。分析了暂态稳定计算中利用因子表求解网络方程的特点,提出利用因子表修正算法和因子表局部再分解算法来减少网络方程的计算量,同时引入稀疏技术。算例仿真结果表明,因子表修正算法模型适应性较好,数值精度和数值稳定性符合仿真要求。The currently prevailing methods for transient stability analysis are summarized and the high time consumption of iterated solving of network equations is pointed out.The characteristics of the network equation calculation during transient stability analysis are analyzed,and the use of factorization modified algorithm and partial re-factorization algorithm as well as the introduction of sparse technology are proposed to reduce the computation of network equation.Case simulation results indicate that the factorization modified algorithm has satisfactory adaptability,numerical precision and numerical stability.

关 键 词：暂态稳定计算 网络方程 因子表修正 稀疏技术 因子表局部再分解 

分 类 号：TM744[电气工程—电力系统及自动化]