摘要
对电网频率变化率ｄｆ／ｄｔ的特性进行了分析，论证了利用ｄｆ／ｄｔ解决频率紧急控制装置过切、装置在孤立小电网中误动和ｄｆ／ｄｔ难于准确整定的可行性，并通过实测验证了分析的正确性．
In this paper the features of frequency change of power system are analysed and the feasibility of making use of d f /d t to avoid ablating the load excessively and erroneous motion in the isolation power system is studied. The analyses above have been proved to be correct through experiments.
出处
《水电能源科学》
1998年第3期49-54,共6页
Water Resources and Power
关键词
频率变化率
装置误动
df/dt
frequency change of power system
erroneous motion
