AIO208
AIO208
(1)开环、闭环状态自由平滑切换 闭环运行状态下,如果遇到通讯故障,则自动切换到开环运行状态,等通讯恢复后,在用户DCS监控界面可以直接切换至闭环状态。正常运行情况下,用户也可以在DCS监控界面对控制状态进行随意切换。 (2)斜坡停车功能 斜坡停车状态下,系统发电量将以斜坡形式缓慢降落,以防止汽轮机转速波动。若斜坡停车期间再次按下运行按钮,则系统重新开始运行。 2.5转速启动
转速启动又为:“飞车启动”,即在电机旋转状态下启动。变频器转速启动存在于转速启动与转矩控制启动两种方式中。在启动变频器前控制器一直检测电机的转速,一旦接到启动命令,变频器立即输出该转速下对应的频率,并在此频率基础上加减转速或者加减转矩,直到达到给定数值。 AIO208
AIO208
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