High-Performance Control of Electromechanical Servo System Based on Motor/Hydraulic Actuator

A special issue of Actuators (ISSN 2076-0825). This special issue belongs to the section "Control Systems".

Deadline for manuscript submissions: 31 December 2025 | Viewed by 463

Special Issue Editors


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Guest Editor
School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing 211816, China
Interests: nonlinear control; electromechanical servo control; intelligent control; adaptive control; robust control; electro-hydraulic servo control; motor servo control; neural networks; robot arm; observer design; fault diagnosis

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Guest Editor
School of Vehicle and Traffic Engineering, Henan University of Science and Technology, Luoyang 471003, China
Interests: electromechanical servo control; adaptive control; robust control; electro-hydraulic servo control; motor servo control

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Guest Editor
School of Computer and Information Engineering, Fuyang Normal University, Fuyang 236037, China
Interests: electromechanical servo control; adaptive control; robust control; electro-hydraulic servo control; motor servo control

Special Issue Information

Dear Colleagues,

Motor/hydraulic actuators play an important role in high-performance electromechanical servo control. However, the existing modeling uncertainties will reduce the system control performance or even cause the whole closed-loop system to become unstable. It should be noted that these uncertainties can be subdivided into endogenous uncertainties associated with the system states and exogenous uncertainties with regard to external disturbances. More importantly, these uncertainties are not only smooth but also nonsmooth. Furthermore, measurement noises, input saturation, and other factors can also affect the resulting control performance of the system. Overall, the modeling uncertainties, which not only come from diverse sources but also have complex forms, always inevitably exist in all electromechanical servo plants, enabling the closed-loop controller design become difficult and hindering the development of these systems towards high control performance. Therefore, how to reject these uncertainties to improve the system control performance is of great significance. Additionally, other control methods such as prescribed performance control, preset time control, state constraint control, input constraint control, event-triggered control, optimal control, and so on play a significant role in satisfying the system control requirements. This Special Issue warmly welcomes all research work related to motor/hydraulic actuator-based electromechanical servo control.

Dr. Guichao Yang
Dr. Zhenle Dong
Dr. Zhangbao Xu
Guest Editors

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Keywords

  • motor control
  • hydraulic control
  • electromechanical control
  • servo control
  • motion control
  • controller design
  • control theory and application
  • control engineering
  • modeling and simulations

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Published Papers (1 paper)

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Research

19 pages, 3033 KB  
Article
Fast Terminal Sliding Mode Control Based on a Novel Fixed-Time Sliding Surface for a Permanent Magnet Arc Motor
by Qiangren Xu, Gang Wang and Shuhua Fang
Actuators 2025, 14(9), 423; https://doi.org/10.3390/act14090423 - 29 Aug 2025
Abstract
A fast terminal sliding mode control based on a fixed-time sliding surface is proposed for a permanent magnet arc motor (PMAM), effectively improving speed response, control accuracy, and disturbance rejection capability. Due to its piecewise structure and advanced logarithmic characteristics, a PMAM is [...] Read more.
A fast terminal sliding mode control based on a fixed-time sliding surface is proposed for a permanent magnet arc motor (PMAM), effectively improving speed response, control accuracy, and disturbance rejection capability. Due to its piecewise structure and advanced logarithmic characteristics, a PMAM is subject to high-frequency disturbances. Additionally, it is also influenced by external disturbances. To address this, a sliding mode reaching law that combines terminal terms, linear terms, and switching terms is designed to reduce chattering and enhance robustness. Furthermore, to improve the convergence speed of the sliding mode and disturbance rejection ability, a novel fixed-time converging sliding surface based on a variable exponent terminal term is introduced. Numerical simulations verify the convergence and disturbance rejection capabilities of the proposed sliding surface. Stability based on the Lyapunov theorem is strictly proven. Experimental results validate the effectiveness and superiority of the proposed algorithm. Full article
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