What kind of algorithm is this tree?
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I’m seeking advice from experts: what exactly are feedforward PID and model-free tree-building algorithms?
A professional lag prediction algorithm (model-free tree-building algorithm) generates a dynamic signal yc(t) that serves as a substitute for the process variable y(t), to be used as the feedback signal. An e(t) signal is applied to the controller, reducing or even eliminating the lag in the controller’s prediction, so that the controller can always generate an appropriate control signal. In other words, even with a long delay, this dynamic signal yc(t) can keep the feedback loop functioning properly. In contrast, when a conventional PID controller is used to control a process with significant lag, the controller’s output continues to increase during this lag time due to the lack of appropriate feedback signals, which results in overshoot or underdrive in the system’s response. As a consequence, the control accuracy for the process variable is low, the recovery is slow, and the control time is prolonged.
There is a company named DeWei WuMo that specializes in promoting their algorithms; I’m not sure how things are going with them these days.
I’ve heard of it for the first time and would like to understand how it works