Explain the differences between the theoretical and real Smith Predictor models.
Smith predictor is a predictive controller which can be used for system with large dead time. Suppose there is a process which has a delay component in it. So if we want to control the system with PID controller we will feed back the output to the input side and the output will be compared with the reference input . The difference between the output and the reference input which is called error is then fed to the input side of the PID controller. Output from the controller then give control input to the system.
But for system with large dead time i.e with a delay component in it the output from the system that is to be compared with the reference input is outdated. So the close loop is feeding back outdated information. So when there is disturbance in the system the output of the system contains both delay term and the disturbance. To remove the delay term from the output of the system smith predictor is used.
Closed loop control system with delay component
A compensator is added to the system
The Smith Predictor general structure for delay compensation
Theoretical Smith predictor creates a models that imitate output of the system with the dead time .
So, when this model output is subtracted from the actual output the output is zero. In a real smith predictor the output is not zero. As system may be subjected to various disturbance from time to time. So in a real smith predictor only the disturbance part is fed to the input side via closed loop.
Explain the differences between the theoretical and real Smith Predictor models.
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xQ4. Describe the differences between the 2 models used to describe enzyme mechanisms of action and explain why one can is useful to describe both competitive and non-competitive enzyme inhibition and one can only describe competitive inhibition. re ill of
xQ4. Describe the differences between the 2 models used to describe enzyme mechanisms of action and explain why one can is useful to describe both competitive and non-competitive enzyme inhibition and one can only describe competitive inhibition. re ill of
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Explain the key differences in outcomes between markets consisting of price-setting firms and markets consisting of price-taking firms. Select a specific real-world firm or market that we have not discussed in class or the online text and discuss what which model of market structure you think would be most appropriate to describe that market. Real world markets never exactly meet the assumptions of the models, so you can also talk about what aspects of the real-world market may not fit...
Explain the key differences in outcomes between markets consisting of price-setting firms and markets consisting of price-taking firms. Select a specific real-world firm or market that we have not discussed in class or the online text and discuss what which model of market structure you think would be most appropriate to describe that market. Real world markets never exactly meet the assumptions of the models, so you can also talk about what aspects of the real-world market may not fit...
Explain the key differences in outcomes between markets consisting of price-setting firms and markets consisting of price-taking firms. Select a specific real-world firm or market that we have not discussed in class or the online text and discuss what which model of market structure you think would be most appropriate to describe that market. Real world markets never exactly meet the assumptions of the models, so you can also talk about what aspects of the real-world market may not fit...
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