Answer to Question #233463 in Chemical Engineering for Lok

Question #233463

Explain different time integral performance criteria and their applications.

Expert's answer

There is an inherent purpose to diminish error in any response control system. To keep a trail of the errors at all periods from zero to infinitude, and to diminish them unceasingly a performance measure in terms of ITAE, IAE, ISE, and ITSE are well-defined. Minimization of recital measures will guarantee the diminishing of errors. As errors might become undesirable likewise that is why these recital measures are typically articulated in terms of either outright value of error or terms of square error. ISE criterion is extra applied for creating performance measures for optimum control such as a linear quadratic regulator or linear tracking control optimal control problem in combination with control input constraints u(t).

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