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In networked control system, such as WirelessHART that is characterized by stochastic delay, the use of proportional integral and differential (PID) controllers is inadequate. This is because PID performs poorly in handling time-delay processes. The main reason for this poor performance is the limitation in the range of stable gain of the controller. Time delay causes oscillatory response of the PID...
The use of conventional PID controllers has proven to be inadequate in delayed and uncertain networks such as WirelessHART network. This is because the PIDs produce oscillatory and unstable response when large gains are used. Furthermore, the response become sluggish when very small gains are used. Because of complexity, the use of deadtime compensators and other model based controllers in the industries...
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