在DC MASTER系列的实际应用方面,SIEMENS推荐的荷载平衡方案中有一段关于负荷平衡调节器参数设置描述(下载中心的文档资料6RA70 range Load-balanced control application):
In practice it has been shown that the PI/I controller should not intervene by more than 5%.
When setting the integration time, it should be noted that this is at least four times as long as the longest integral time of the secondary speed controller.
The intervention also tracks the web velocity setpoint, i.e., the level of intervention increases linearly with the web velocity.
第一句是速度干预量不要大于5%的额定速度,第三句是干预量应要与当前速度适配,关键是第二句理解有些模糊,时间常数谁至少是谁的四倍?第二(或次要的)速度控制器指的是哪一个?哪位有经验者能给出更明晰的解释,谢谢!