摘要
利用表征重合闸操作影响发电机轴系扭振幅度的等值能量函数 ,导出了瞬时性故障与永久性故障下重合闸操作对轴系冲击最小的理想重合时刻。在此基础上 ,给出了能够减小重合操作对严重受扰轴段冲击的重合时刻计算方法及计算步骤。仿真计算验证了文献 [1]所提出的模型及该文所确定的优化重合时刻的准确性和计算方法的有效性 ,为改善实际中重合操作对轴系的冲击奠定了理论基础。
Based on the shaft partial energy function of the turbine\|generator shaft torsional oscillation.the paper derives the optimal reclosing conditions for both transient and permanent faults to minimize the impact of the reclosure operations on the most vulnerable section of the shaft.The calculation method and procedure for the optimal reclosing time are proposed.The effectiveness of the proposed method has been verified by simulation.Therefore,the performance improvements of the reclosure technique can be carried out on the basis of the theoretical foundation established in this paper.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2001年第9期5-7,57,共4页
Proceedings of the CSEE
基金
国家自然科学基金资助项目 ( 5 96 770 12 )
教育部博士点学科基金资助项目 ( 970 6 980 7)~~
关键词
汽轮发电机组
轴系扭振
重合闸
等值能量函数
shaft torsional oscillation
reclosure
shaft partial energy function
ideal reclosing time
