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This paper deals with Fractional Complex Order Controller FCOC tuning. The paper presents new structure of FCOC with the form PIx+iyD, in which x and y are the real and imaginary parts of the integral complex order, respectively. With the controller's five parameters, we can fulfil five design requirements. Design specifications are set to ensure robustness toward gain variations, noise on system...
In this work we present a design and implementation method of discrete variable gain controllers, which are used for regulating industrial systems. The design is derived from the classical discrete deadbeat response approach. The design is based simply on determining a variable gain for each discrete sample such to accomplish the regulation in finite steps equal the system order. The gain computation...
This paper deals with fractional robust control of a two time scale system. The CRONE design methodology is applied on a singularly perturbed system. The system is decomposed on two subsystems: slow and fast. Then, the CRONE method is applied to obtain a fractional controller ensuring robustness towards gain variations. A numerical example is given to show the efficiency of the proposed method.
Class D amplifiers are becoming the most feasible solution for embedded audio application. However, distortions due to the non-linear nature of switching stage are the main drawback for this amplifier topology. This paper discusses the design and implementation of high fidelity audio class D using sliding mode control scheme. This design method proves to be a cost effective solution for industrial...
The aim of this note is to study robust non-fragile stabilization and robust non-fragile D-stabilization for the delta-operator formulated linear uncertain systems. The uncertainty is assumed to be norm-bounded and multiplicative controller gain variations are assumed in existence in the state feedback gain. Based on the notion of non-fragile quadratic stabilizability, a criterion of robust non-fragile...
This paper concerns the design problem of reliable Hinfin control for discrete-time systems with circular pole constraints. A reliable controller design method is developed. This method is based on Hinfin performance and multiobjective optimization in terms of LMI. A given Hinfin performance bound of the actuator failure cases is guaranteed and the performance in the normal case is optimized. Simulation...
In order to realization electronic parts product appearance quality detection control, one kind of processor based on the intelligent knowledge automatic extraction and system intelligence modeling was presented. In the processor, wavelet-fuzzy technique and neural network technique are combined. Uses the fuzzy wavelet extraction image feature, and wavelet function is used as fuzzy membership function...
Smith predictor control is theoretically a good solution to the problem of controlling the time delay systems. However, there are few control design method of Smith predictor scheme for obtain the desired transient and steady state responses arbitrary. In this paper we present a design method of 2-DOF Smith predictor control system design by root locus technique for achieve in the closed loop system...
This paper presents an energy-shaping design approach to the exciter-governor controller for power systems. The approach is actually an extension of the design method for single loop excitation controller given by [3]. The controller is obtained by shaping the total energy function via modifying the energy transfer not only between the mechanical and electrical energy, but also the exciter control...
This paper presents a new auto-tuning method for designing a diagonal PID controller for a TITO system. From the auto-tuning results a design method is developed based on moving the critical point to a desired position on the compensated characteristic loci. An example is given to illustrate the design method.
This paper presents a new method for the design of constant gain digital controllers for multirate systems with a multiple input/fixed output sampling rate configuration. The technique is based on full-state feedback pole placement. Two main problems are addressed; the adverse effects of intersample cross-coupling and the high amplitude control signals that normally result from a multirate feedback...
The problem of designing realistic decentralized controllers to solve the robust decentralized servomechanism problem [1] is considered in this paper. In particular, it is desired to find a decentralized controller for a plant to solve the robust servomechanism problem so that closed loop stability and asymptotic regulation occur, and also so that other desirable properties of the controlled system,...
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