摘要
本文综合分析了第二汽车制造厂自各电厂2号机组多次引起的华中电网大面积低频功率振荡现象。分析结果证明了这些低频振荡是电网本身固有的弱阻尼低频振荡模式决定的,而维持低频振荡的直接原因是第二汽车制造厂自备电厂2号机组调速系统参与了低频振荡,它提供的负阻尼转矩使得固有的弱阻尼低频振荡模式被激发起来之后无法衰减。
Wide range low frequency oscillations (LFO) have occurred in Central China Power System several times. Analysis show that these oscillations was caused by the inherent weak damping oscillation mode existing in the system, and the LFO was induced by the negative damping torque supplied by the speed governor of No. 2 unit of the China Second Truck Factory, and can not be damped.
出处
《电网技术》
EI
CSCD
北大核心
1990年第2期40-44,共5页
Power System Technology
