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什么叫一次调频二次调频
更新时间: 2020-09-17 00:00:00  

1、一次调频是指由发电机组调速系统的频率特性所固有的能力,随频率变化而自动进行频率调整。其特点是频率调整速度快,但调整量随发电机组不同而不同,且调整量有限,值班调度员难以控制;

2、 二次调频是指当电力系统负荷或发电出力发生较大变化时,一次调频不能恢复频率至规定范围时采用的调频方式。

关键词: 什么 调频

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