Typical characteristic nonlinearities include insensitivity, saturation, clearance and hysteresis, and various combinations of them, which have a great influence on the system in control systems. For example, Backlash nonlinearity of the reducers and gears has strong effect on the system in some electromechanical tracking systems. Due to the effect of backlash nonlinearity on quality and reliability of the system, many researchers have tried to find out its solutions. In this study, we performed theoretical considerations and simulations to compensate the effects of nonlinearities such as backlash, saturation, hysteresis, etc. present in the control system. This paper shows that, unlike the past linear approximation of the inherent nonlinearities present in control systems, it directly eliminates the inherent nonlinearities and is convenient for physical implementation. First, this paper shows the simple method of compensating nonlinearities by using direct coupling principle. Next, Feedback compensation method is introduced in the systems which involve the saturation nonlinearity element. Finally, through the experiment, the advantages of these methods are confirmed. This is a new approach for nonlinear compensation and more convenient and simpler to implement compared with the previous different control methods. It can also be used to overcome the effect of several nonlinearities in different control systems as well as in the primary static satellite system.
| Published in | American Journal of Engineering and Technology Management (Volume 10, Issue 5) |
| DOI | 10.11648/j.ajetm.20251005.12 |
| Page(s) | 84-93 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2025. Published by Science Publishing Group |
Insensitivity, Saturation, Hysteresis, Nonlinearity Compensation
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APA Style
Ryong, K. T., Guk, R. J., Chol, K. H. (2025). Compensation Method of Characteristic Nonlinearity on Control System. American Journal of Engineering and Technology Management, 10(5), 84-93. https://doi.org/10.11648/j.ajetm.20251005.12
ACS Style
Ryong, K. T.; Guk, R. J.; Chol, K. H. Compensation Method of Characteristic Nonlinearity on Control System. Am. J. Eng. Technol. Manag. 2025, 10(5), 84-93. doi: 10.11648/j.ajetm.20251005.12
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Download@article{10.11648/j.ajetm.20251005.12,
author = {Kim Thae Ryong and Ri Jin Guk and Kim Hyon Chol},
title = {Compensation Method of Characteristic Nonlinearity on Control System
},
journal = {American Journal of Engineering and Technology Management},
volume = {10},
number = {5},
pages = {84-93},
doi = {10.11648/j.ajetm.20251005.12},
url = {https://doi.org/10.11648/j.ajetm.20251005.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajetm.20251005.12},
abstract = {Typical characteristic nonlinearities include insensitivity, saturation, clearance and hysteresis, and various combinations of them, which have a great influence on the system in control systems. For example, Backlash nonlinearity of the reducers and gears has strong effect on the system in some electromechanical tracking systems. Due to the effect of backlash nonlinearity on quality and reliability of the system, many researchers have tried to find out its solutions. In this study, we performed theoretical considerations and simulations to compensate the effects of nonlinearities such as backlash, saturation, hysteresis, etc. present in the control system. This paper shows that, unlike the past linear approximation of the inherent nonlinearities present in control systems, it directly eliminates the inherent nonlinearities and is convenient for physical implementation. First, this paper shows the simple method of compensating nonlinearities by using direct coupling principle. Next, Feedback compensation method is introduced in the systems which involve the saturation nonlinearity element. Finally, through the experiment, the advantages of these methods are confirmed. This is a new approach for nonlinear compensation and more convenient and simpler to implement compared with the previous different control methods. It can also be used to overcome the effect of several nonlinearities in different control systems as well as in the primary static satellite system.
},
year = {2025}
}
TY - JOUR T1 - Compensation Method of Characteristic Nonlinearity on Control System AU - Kim Thae Ryong AU - Ri Jin Guk AU - Kim Hyon Chol Y1 - 2025/11/22 PY - 2025 N1 - https://doi.org/10.11648/j.ajetm.20251005.12 DO - 10.11648/j.ajetm.20251005.12 T2 - American Journal of Engineering and Technology Management JF - American Journal of Engineering and Technology Management JO - American Journal of Engineering and Technology Management SP - 84 EP - 93 PB - Science Publishing Group SN - 2575-1441 UR - https://doi.org/10.11648/j.ajetm.20251005.12 AB - Typical characteristic nonlinearities include insensitivity, saturation, clearance and hysteresis, and various combinations of them, which have a great influence on the system in control systems. For example, Backlash nonlinearity of the reducers and gears has strong effect on the system in some electromechanical tracking systems. Due to the effect of backlash nonlinearity on quality and reliability of the system, many researchers have tried to find out its solutions. In this study, we performed theoretical considerations and simulations to compensate the effects of nonlinearities such as backlash, saturation, hysteresis, etc. present in the control system. This paper shows that, unlike the past linear approximation of the inherent nonlinearities present in control systems, it directly eliminates the inherent nonlinearities and is convenient for physical implementation. First, this paper shows the simple method of compensating nonlinearities by using direct coupling principle. Next, Feedback compensation method is introduced in the systems which involve the saturation nonlinearity element. Finally, through the experiment, the advantages of these methods are confirmed. This is a new approach for nonlinear compensation and more convenient and simpler to implement compared with the previous different control methods. It can also be used to overcome the effect of several nonlinearities in different control systems as well as in the primary static satellite system. VL - 10 IS - 5 ER -
Faculty of Mathematics, Kim Il Sung University, Pyongyang, DPR Korea
Faculty of Mathematics, Kim Il Sung University, Pyongyang, DPR Korea
Faculty of Mathematics, Kim Il Sung University, Pyongyang, DPR Korea
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