摘要
研究了汽轮发电机定子系统随负荷变化的振动规律。以发电机定子系统双壳模型的Hamilton正则方程为基础 ,计及转子绕组的实际位置 ,采用半解析法分析了 2 0 0MW发电机定子系统滞后功率因数cosφ=0 .85的情况下不同输出功率的振动情况。本文所揭示的振动规律可作为判断发电机是否正常运行的理论依据。
The stator system vibration pattern of a large turbogenerator at various loads was investigated. Based on Hamilton canonical equation for the double shell model of turbogenerator stator system, and with actual rotor winding location considered, the vibration of a 200MW turbogenerator stator system at various output power was analyzed by employing the semi analytical solution, when lagging power factor cosφ equals 0.85. The vibration pattern presented in this paper can be used to diagnose whether or not the generator operates normally.
出处
《大电机技术》
北大核心
2004年第6期5-8,62,共5页
Large Electric Machine and Hydraulic Turbine
