摘要
对于大规模交直流混联电网而言,并行电磁暂态仿真在保证计算精度的同时,具有比串行电磁暂态仿真更高的计算效率,因而得到了日益广泛的应用。为进一步提高并行电磁暂态仿真的计算效率,从PSCAD并行仿真机理出发,分析了网络划分均匀程度及联络线路数对并行仿真效率的影响。在此基础上提出一种网络划分优化模型,可在保证分区均匀的同时,减少联络线路数,从而可提高交直流混联电网并行电磁暂态仿真的计算效率。算例分析验证了所提方法的有效性和高效性。
For large-scale AC-DC hybrid power grids,parallel electromagnetic transient simulation has higher calculation efficiency than serial electromagnetic transient simulation while ensuring calculation accuracy.Thus it is increasingly widely used.To further improve the computational efficiency of parallel electromagnetic transient simulation,based on the mechanism of PSCAD parallel simulation,this paper analyzes the influence of the uniformity of network division and the number of contact lines on the efficiency of parallel electromagnetic transient simulation.An optimization model of network division is proposed,one which can reduce contact while ensuring uniform partitions.The number of lines can improve the efficiency of parallel electromagnetic transient simulation of an AC-DC hybrid power grid.Example analyses verify the effectiveness and efficiency of the proposed method.
作者
李高望
陈锐智
陈艳波
LI Gaowang;CHEN Ruizhi;CHEN Yanbo(State Grid Economic and Technical Research Institute Co.,Ltd.,Beijing 102209,China;Bishan Power Supply Branch,State Grid Chongqing Electric Power Company,Chongqing 402760,China;State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,School of Electrical&Electronic Engineering,North China Electric Power University,Beijing 102206,China)
出处
《电力系统保护与控制》
CSCD
北大核心
2021年第4期72-80,共9页
Power System Protection and Control
基金
国家自然科学基金项目资助“基于键合图理论的综合能源系统动态状态估计研究”(51777067)
国网经济技术研究院有限公司自主投入科技项目资助“基于机电暂态-电磁暂态混合仿真技术的高压直流输电系统动态性能研究”(524414190002)。
关键词
电磁暂态
网络划分优化
并行仿真
仿真效率
electromagnetic transient
network partition optimization
parallel simulation
simulation efficiency
