Robust and nonlinear control

This paper presents a solution to mitigate the influences of oscillations without the modification of the electric drives based on the utilization of the nonlinear control technique known as feedback linearization. The advantages of the proposed control method are low cost and straightforward to implement with the microcontroller unit. The effectiveness and robustness of this proposed control are verified through the analysis of simulation results and the comparison with PI control.

7p giangnhanly 02-10-2023 5 3   Download

This paper proposed an adaptive controller based on Fuzzy logic for Cleaning and Detecting Robot Manipulator (CDRM). In fact, robot manipulators are a nonlinear system and in the working process, they usually bear the nonlinear fiction, payload variation external disturbance, etc.

6p vifriedrich 25-08-2023 7 4   Download

In this study, a combination of multi-input fuzzy control, single-input fuzzy control, sliding mode control and backstepping control is introduced to the industrial robot manipulator (IRM). Simulation results show the high performance of this control method when compared to adouble-fuzzy backstepping sliding mode controller (DFBSMC) and Fuzzy Backstepping Sliding Mode Controller controller (FBSMC).

8p vifriedrich 25-08-2023 9 6   Download

In this paper, a point-to-point positioning controller based on Active Disturbance Rejection Control (ADRC) is applied to a linear motion actuator using lead ball screw. In the design, the Extended State Observer (ESO) is adopted to the controller structure, and the ADRC is designed which consists of the ESO and the nonlinear PD controller to estimate and compensate the disturbances.

7p viannee 02-08-2023 5 4   Download

Continued part 1, part 2 of ebook "Aeroservoelasticity: Modeling and control" presents the following content: finite-state aeroelastic modeling; linear aeroelastic control; robust control of linear time-invariant systems; nonlinear aeroservoelastic applications; adaptive suppression of transonic LCO;...

162p dieptieuung 14-07-2023 4 1   Download

This research proposes an advanced proportional-integral-derivative (PID) controller for position-tracking control problem of a pump-controlled Electro-Hydraulic System (EHS). Although conventional PID controller is a practically robust and easy-to-use method, it is difficult to maintain good control performance of such system which contains both high nonlinearities and unknown terms.

8p vidoctorstrange 06-05-2023 8 3   Download

This paper presents an algorithm for designing a robust and optimal controller for active magnetic bearing systems. The active magnetic bearing systems are widely applied for high speed machining due to no contact operation, low fiction, lubrication-free operation, and extended life. However, they are nonlinear, unstable, multiple input and multiple output systems.

7p chauchaungayxua11 23-03-2021 11 2   Download

In this paper, the authors propose a novel adaptive multilayer T-S fuzzy controller (AMTFC) with a optimize soft computing algorithm for a class of robust control uncertain nonlinear SISO systems. First, a new multilayer T-S fuzzy was created by combined multiple simple T-S fuzzy model with a sum function in the output. The multi-layer fuzzy model used in nonlinear identification has many advantages over conventional fuzzy models, but it cannot be created by the writer's experience or the trial and error method. It can only be created using an optimization algorithm.

13p trinhthamhodang9 04-12-2020 15 2   Download

This article highlights a robust adaptive tracking control approach for a nonholonomic wheeled mobile robot by which the bad problems of both unknown slippage and uncertainties are dealt with. The radial basis function neural network in this proposed controller assists unknown smooth nonlinear dynamic functions to be approximated. Furthermore, a technical solution is also carried out to avoid actuator saturation. The validity and efficiency of this novel controller, finally, are illustrated via comparative simulation results.

18p nguyenanhtuan_qb 18-06-2020 27 2   Download

This paper proposes a novel uncertain fuzzy descriptor system which is an extension from standard T-S fuzzy system. A fixed Lyapunov function-based approach is considered and controller design for this rich class of fuzzy descriptor systems is formulated as a problem of solving a set of LMIs. The design conditions for the descriptor fuzzy system are more complicated than the standard state-space-based systems. However, the descriptor fuzzy system-based approach has the advantage of possessing fewer number of matrix inequality conditions for certain special cases.

20p 12120609 23-03-2020 30 5   Download

In this paper, the authors aimed to analyze uncertain nonlinear networked control systems (NCS) under discrete eventtriggered communication scheme (DETCS), in which an integrated design methodology between robust fault detection observer and active fault-tolerant controller is proposed.

19p vivalletta2711 11-01-2020 12 1   Download

The article describes the detailed model of the zipper system with many different models based on the change in the length of the rope used in the zipper system. To meet the nonlinearity of the system in actual operation, use nonlinear control theory to design the controller for the system; by experimenting on the model and comparing with the PID controller.

5p lequangvinh1608 13-08-2019 21 1   Download

The employed method is easy to implement in practical applications and moreover, the SMC exhibits the desired dynamic properties during the entire output-tracking process independent of perturbations. Simulation results are presented to demonstrate the effectiveness of the proposed controller in terms of performance, robustness, and stability. Results show that the proposed controller for the load following operation is so effective that the xenon oscillations are kept bounded in the given region.

11p minhxaminhyeu5 30-06-2019 21 0   Download

The efficient and effective speed controllers can be designed by using adaptive control techniques. In which the conventional PI controller is replaced by structures based on Sliding Mode Control (SMC) strategy. SMC is known for its capability to cope with bounded disturbance as well as model imprecision which makes it ideal for the robust nonlinear control of IM drives.

8p girlsseek 27-02-2019 38 1   Download

In this paper, a Model Reference Adaptive Systems (MRAS) based an Adaptive System is proposed to a Twin Rotor MIMO System (TRMS). The TRMS is an open-loop unstable, nonlinear and multi output system.

6p blackwidow123 15-06-2018 31 3   Download

This paper presents a control of active suspension system for quarter-car model with two-degree-of-freedom using H and nonlinear adaptive robust control method. Suspension dynamics is linear and treated by H method which guarantees the robustness of closed loop system under the presence of uncertainties and minimizes the effect of road disturbance to system.

9p sansan2 26-05-2018 52 3   Download

This volume brings about the contemporary results in the field of discrete-time systems. It covers papers written on the topics of robust control, nonlinear systems and recent applications. Although the technical views are different, they all geared towards focusing on the up-to-date knowledge gain by the researchers and providing effective developments along the systems and control arena. Each topic has a detailed discussions and suggestions for future perusal by interested investigators.

256p crius75 02-01-2013 59 3   Download

A Series of Reference Books and Textbooks Editors NEIL MUNRO, PH.D., D.SC. Professor Applied Control Engineering University of Manchester Institute of Science and Technology Manchester, United Kingdom FRANK L.LEWIS, PH.D. Moncrief-O’Donnell Endowed Chair and Associate Director of Research Automation & Robotics Research Institute University of Texas, Arlington 1. Nonlinear Control of Electric Machinery, Darren M.Dawson, Jun Hu, and Timothy C.Burg 2. Computational Intelligence in Control Engineering, Robert E.King 3.

614p khangoc2393 13-08-2012 78 9   Download

A trend of inverstigation of Nonlinear Control Systems has been present over the last few decades. As a result the methods for its analysis and design have improved rapidly. This book includes nonlinear design topics such as Feedback Linearization, Lyapunov Based Control, Adaptive Control, Optimal Control and Robust Control.

0p bi_bi1 11-07-2012 54 10   Download

All practical systems contain nonlinear dynamics. Control system development for these systems has traditionally been based on linearized system dynamics in conjunction with linear control techniques. Sometimes it is possible to describe the operation of systems by a linear model around its operating points. Linearized system can provide approximate behavior of the system. But in analyzing the overall system behavior, the resulting system model is inadequate or inaccurate. Moreover, the stability of the system cannot be guaranteed.

0p wqwqwqwqwq 06-07-2012 93 15   Download