Industrial Process Identification and Control Design: by Tao Liu

By Tao Liu

Industrial approach id and keep watch over layout is dedicated to complex identity and regulate equipment for the operation of continuous-time strategies either with and with out time hold up, in business and chemical engineering perform. the straightforward and sensible step- or relay-feedback attempt is hired while utilising the proposed id concepts, that are categorised when it comes to universal commercial approach variety: open-loop sturdy; integrating; and risky, respectively. Correspondingly, regulate procedure layout and tuning types that stick to are provided for single-input-single-output tactics. moreover, new two-degree-of-freedom keep watch over techniques and cascade regulate approach layout equipment are explored as regards to independently-improving, set-point monitoring and cargo disturbance rejection. Decoupling, multi-loop, and decentralized keep an eye on ideas for the operation of multiple-input-multiple-output tactics also are precise. excellent monitoring of a wish output trajectory is discovered utilizing iterative studying regulate in doubtful commercial batch procedures. the entire proposed tools are provided in an easy-to-follow kind, illustrated by means of examples and useful functions. This publication might be important for researchers in procedure identity and regulate idea, and also will be of curiosity to graduate regulate scholars from strategy, chemical, and electric engineering backgrounds and to working towards regulate engineers within the procedure industry.

Show description

Read or Download Industrial Process Identification and Control Design: Step-test and Relay-experiment-based Methods PDF

Best robotics & automation books

Stability and Stabilization of Time-Delay Systems

Time-delays are vital elements of many dynamical structures that describe coupling or interconnection among dynamics, propagation or delivery phenomena, and heredity and pageant in inhabitants dynamics. This monograph addresses the matter of balance research and the stabilization of dynamical structures subjected to time-delays.

Adaptive Inverse Control, Reissue Edition: A Signal Processing Approach

A self-contained creation to adaptive inverse controlNow that includes a revised preface that emphasizes the assurance of either regulate structures and sign processing, this reissued version of Adaptive Inverse regulate takes a singular method that isn't to be had in the other e-book. Written by means of pioneers within the box, Adaptive Inverse regulate provides equipment of adaptive sign processing which are borrowed from the sphere of electronic sign processing to unravel difficulties in dynamic structures keep an eye on.

Industrial Process Identification and Control Design: Step-test and Relay-experiment-based Methods

Commercial method id and keep watch over layout is dedicated to complicated id and keep an eye on tools for the operation of continuous-time methods either with and with out time hold up, in business and chemical engineering perform. the easy and useful step- or relay-feedback try is hired whilst utilizing the proposed id recommendations, that are categorized by way of universal business method variety: open-loop solid; integrating; and volatile, respectively.

Evolutionary Humanoid Robotics

This publication examines how special strands of analysis on independent robots, evolutionary robotics and humanoid robotic examine, are converging. The e-book can be invaluable for researchers and postgraduate scholars operating within the parts of evolutionary robotics and bio-inspired computing.

Additional resources for Industrial Process Identification and Control Design: Step-test and Relay-experiment-based Methods

Example text

T P 0 / < 0, a positive step change to the process input (u) is suggested, as shown in Fig. 7, so that an obvious turning point in the output response can be observed. The starting point (t1 ) of the first segment of the step response data can then be taken for identification. If the initial process output has an increasing trend, a negative step change should be introduced accordingly. If the trend of the initial process output cannot be observed clearly, especially in the presence of severe measurement noise as shown in Fig.

Also, a closed-loop step test is generally performed after the closed-loop system has already moved into a steady state of operation. To facilitate identifying a process model from a closed-loop step test, the closed-loop controller should be prescribed in a simple form like the proportional (P), proportionalintegral (PI), or proportional-integral-derivative (PID) type of controllers, so that an analytical or quantitative relationship between the process response and the closedloop response can be explicitly established (Zheng 1996).

However, by substituting s D ˛ C j! tN /e ˛tN ! t/ reaches a steady value after the transient response to a step change. t/ D c for t Ä t0 , as shown in Fig. 4) where h is the magnitude of the step change. Its Laplace transform for s D ˛ C j! /t dt D 0 h : ˛ C j! / D ˛ C j! 1. 3), as shown in the relay identification monograph (Wang et al. 2003). The reason lies in the fact that the step response is not a periodic signal that can be topologized for such FFT computation. / ! 0 when ˛ ! 1. On the contrary, ˛ !

Download PDF sample

Rated 4.92 of 5 – based on 23 votes