control theory

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control theory

A science that deals with monitoring and controlling processes. The three categories are adaptive control, predictive control, PID and model-based control. See PID.
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References in periodicals archive ?
We have selected a LMI-based state-feedback controller because it offers, among others, take into account pole placement constraints, control effort limitation, and decay rate and bandwidth improvement.
The controller gains [K.sub.p], [L.sub.1] and [L.sub.2] are calculated using the pole placement technique.
Once again, following the pole placement procedure, one may have, for the sake of simplicity, the input [[tau].sub.0] which is designed via pole placement, that is,
Parameters of controller polynomials R([z.sup.-1]), P([z.sup.-1]), Q([z.sup.-1]) and K([z.sup.-1]) can be calculated by pole placement method [7].
Self tuning pole placement controller (c2) is a discrete single input single output controller that can be used to control systems of second and third order processes.
Partial pole placement by full state feedback is a new strategy for single-input linear system proposed by Datta et al.
The necessary and sufficient condition for arbitrary pole placement of the system is that the system should be completely controllable and it will be very much simpler to find the state feedback gain matrix when the state equations are in the controllable canonical form (JONG et al., 2009).
Mottershead, "Multiple-input active vibration control by partial pole placement using the method of receptances," Mechanical Systems and Signal Processing, vol.
Section 3 describes the regional pole placement for internal and external loops of the RIC system and applied parameterization of the controller structure.
The main controllers are designed via classical SISO synthesis methods (Ziegler Nichols step response method, method of desired model) (1), (7-10) and also via polynomial approach (pole placement method) for SISO control loop (11-12).
The employment of linear state variable feedback (lsvf) as a means of system compensation, to achieve a number of design objectives such as arbitrary pole placement, decoupling and exact model matching has received attention in the past few years.
They cover a range of concepts and methods, including spectral properties of linear time-delay systems, pseudospectra and robust stability analysis, computation of stability regions in parameter spaces, stability regions in delay-parameter spaces, stability of delay rays and delay-interference, stability of linear periodic systems with delays, the continuous pole placement method, the robust stabilization problem, and stabilization using a direct eigenvalue optimization approach.