Nonlinearity compensation based on identified NARX polynomials models

نویسندگان

چکیده

This paper deals with the compensation of nonlinearities in dynamical systems using Nonlinear polynomial AutoRegressive models eXogenous inputs (NARX) identified from data. The approach is formulated for static and contexts general case also adapted hysteresis. Both simulated experimental results are presented to illustrate method. In case, proposed method compared other approaches was found be competitive. yielded a maximum tracking error $$3.9\%$$ while corresponding value uncompensated system $$21.0\%$$ . Furthermore, technique typically signals lower energy requirements. show that methodology can provide practically linearize simple nonlinear very few terms.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Identification of NARX Hammerstein Models Based on Support Vector Machines

This paper presents a new algorithm for identification of NARX Hammerstein systems using support vector machines (SVMs) to model the static nonlinear elements. The SVM is fitted by minimizing an ε-insensitive, L-1 cost function which is robust in the presence of outliers. Another advantage of this algorithm is that the value of the uncertainty level epsilon can be specified by the user which gi...

متن کامل

Digital Fiber Nonlinearity Compensation

IEEE SIGNAL PROCESSING MAGAZINE [46] MARCh 2014 1053-5888/14/$31.00©2014IEEE T he world is connected by a core network of longhaul optical communication systems that link countries and continents, enabling long-distance phone calls, data-center communications, and the Internet. The demands on information rates have been constantly driven up by applications such as online gaming, highdefinition ...

متن کامل

NARX Models Application to Model Based Nonlinear Control

The paper discusses the applicability of approximate NARX models of nonlinear dynamic systems to model based nonlinear control. The models might be obtained by a new version of Fourier analysis based neural network. The proposed controller is based on a discrete-time model of the plant. The objective is to incorporate plant modelling and control design into a unified framework where on the one ...

متن کامل

Disturbance Observer-Based Simple Nonlinearity Compensation for Matrix Converter Drives

This paper presents a new method to compensate the nonlinearity for matrix converter drives using disturbance observer. The nonlinearity of matrix converter drives such as commutation delay, turn-on and turn-off time of switching device, and on-state switching device voltage drop is modeled by disturbance observer and compensated. The proposed method does not need any additional hardware and of...

متن کامل

Neural Network-based Narx Models in Non-linear Adaptive Control

The applicability of approximate NARX models of non-linear dynamic systems is discussed. The models are obtained by a new version of Fourier analysis-based neural network also described in the paper. This constitutes a reformulation of a known method in a recursive manner, i.e. adapted to account for incoming data on-line. The method allows us to obtain an approximate model of the non-linear sy...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Nonlinear Dynamics

سال: 2021

ISSN: ['1573-269X', '0924-090X']

DOI: https://doi.org/10.1007/s11071-021-06797-2