重庆大学 过程控制 process control 中文 翻译 第五章 (2).ppt

* * * There are two key observations. First, K 1, meaning that the controlled variable will change in magnitude less than a given change in set point, the source of offset. The second is that τ τp, meaning that the system has a faster response than the open-loop process. The system time constant becomes smaller as we increase the proportional gain. This is consistent with the position of the closed-loop pole, which should move away from the origin as Kc increases. * There are two key observations. First, K 1, meaning that the controlled variable will change in magnitude less than a given change in set point, the source of offset. The second is that τ τp, meaning that the system has a faster response than the open-loop process. The system time constant becomes smaller as we increase the proportional gain. This is consistent with the position of the closed-loop pole, which should move away from the origin as Kc increases. * There are two key observations. First, K 1, meaning that the controlled variable will change in magnitude less than a given change in set point, the source of offset. The second is that τ τp, meaning that the system has a faster response than the open-loop process. The system time constant becomes smaller as we increase the proportional gain. This is consistent with the position of the closed-loop pole, which should move away from the origin as Kc increases. * There are two key observations. First, K 1, meaning that the controlled variable will change in magnitude less than a given change in set point, the source of offset. The second is that τ τp, meaning that the system has a faster response than the open-loop process. The system time constant becomes smaller as we increase the proportional gain. This is consistent with the position of the closed-loop pole, which should move away from the origin as Kc increases. * There are two key observations. First, K 1, meaning that the controlled variable will change in magnitude less than a given c