Anti-disturbance speed control of low-speed high-torque PMSM based on second-order non-singular terminal sliding mode load observer

Lu, En; Wei, Li; Yang, Xuefeng; Liu, Yuanyuan

doi:10.1016/j.isatra.2018.11.028

Cited by 71 publications

(41 citation statements)

References 19 publications

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“…The sliding mode controller (SMC) strategy has become an important research branch in the field of automatic control. During the past few decades, various SMC strategies have been widely used in the PMSM speed control system such as fractional order SMC [11,12], integral SMC [13], fuzzy SMC [14,15], high-order SMC [16] and non-singular terminal SMC [17]. As a high-order SMC algorithm, the super-twisting (ST) structure has been widely studied by many scholars.…”

Section: Introductionmentioning

confidence: 99%

Model-Free Control Using Improved Smoothing Extended State Observer and Super-Twisting Nonlinear Sliding Mode Control for PMSM Drives

Peng

Zhang

2021

Energies

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This paper proposes a novel model-free super-twisting nonlinear sliding mode control (MFSTNLSMC) strategy with an improved smoothing extended state observer (SESO) for permanent magnet synchronous motor (PMSM) drives. First of all, the improved SESO is introduced to estimate the unknown term of the PMSM ultra-local model. Secondly, a novel nonlinear sliding mode surface (NLSMS) is designed, which can effectively overcome the disadvantages of simple and rough signal processing of the conventional linear sliding mode surface. At the same time, a super-twisting (ST) structure is chosen to suppress the chattering phenomenon and improve system robustness. Then, the Lyapunov stability theorem is used to prove the stability of the proposed control algorithm. Finally, both comparative simulations and experimental demonstrations verify the excellent speed tracking performance and robustness of the proposed control strategy.

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Section: Introductionmentioning

confidence: 99%

Model-Free Control Using Improved Smoothing Extended State Observer and Super-Twisting Nonlinear Sliding Mode Control for PMSM Drives

Peng

Zhang

2021

Energies

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“…For practical applications, this kind of high-frequency chatting cannot be realized by any actuator. Methods to reduce chatting include adjusting the approach law, introducing a filter and interference observer, and the dynamic sliding mode [17][18][19]. At present, the terminal sliding mode control has been applied in the hydraulic position servo system.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Hydraulic Servo System of the Rolling Mill Using Nonsingular Terminal Sliding Mode-Active Disturbance Rejection Control

Guo

Zhang

Liu

2020

Mathematical Problems in Engineering

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In order to improve the disturbance rejection ability and tracking accuracy of the hydraulic servo system of the rolling mill, this study combines nonsingular terminal sliding mode control (NTSMC) with active disturbance rejection control (ADRC). A fourth-order extended state observer was designed to estimate the disturbance of the system in real time. The stability of the control system was tested using the Lyapunov method. System effectiveness was verified through simulation experiments. Simulation results showed that the designed state observer can estimate the total disturbance of the system in real time and that the chattering of the control input can be eliminated by the introduction of a state observer. In terms of uncertainty in the system model caused by load changes and external interference signals, the nonsingular terminal sliding mode-active disturbance rejection control method exhibited better disturbance rejection capacity and a higher tracking accuracy than NTSMC.

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“…However, the coordination performance cannot be ensured [28,29]. In the master-slave control structure as shown in Fig.2 (b), the main motor tracks the command, and the actual position or speed from the master motor acts as a reference signal for slave motors [30].…”

Section: Introductionmentioning

confidence: 99%

High-Precision Coordinated Position Control of Integrated Permanent Magnet Synchronous Linear Motor Stations

Pan

Niu

et al. 2020

IEEE Access

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In multi-station linear reciprocating processing systems, the positioning accuracy and the cooperative precision of the motion stations directly affect the production quality of products. This paper aims to enhance both the positioning and the coordination accuracy of the motion stations from the integrated permanent magnet synchronous linear motor (IPMSLM) stations during the reciprocating motions, especially in the presence of load disturbance. Firstly, the adaptive control strategy based on pole placement principle with online parameter identification is proposed for single IPMSLM station. The least squares identification algorithm with forgetting factor is employed to calculate the mathematic model online, so as to solve the problem that the IPMSLM stations cannot be accurately modeled with the existence of parameter perturbation and load disturbance. Secondly, in order to improve the coordination performance of the IPMSLM stations, the cooperative error equation is proposed, and a ring coupling cooperative (RCC) control strategy based on Lyapunov stability theorem is designed. The accuracy and effectiveness of this proposed collaborative control strategy is verified by experiments under no-load and spring-load conditions. Experimental results show that for the proposed adaptive and coordinate control strategy, the positioning error and the coordination error during the reciprocating motion can be guaranteed uniformly within ±8 μm and ±10 μm, respectively.

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Anti-disturbance speed control of low-speed high-torque PMSM based on second-order non-singular terminal sliding mode load observer

Cited by 71 publications

References 19 publications

Model-Free Control Using Improved Smoothing Extended State Observer and Super-Twisting Nonlinear Sliding Mode Control for PMSM Drives

Model-Free Control Using Improved Smoothing Extended State Observer and Super-Twisting Nonlinear Sliding Mode Control for PMSM Drives

Investigation of the Hydraulic Servo System of the Rolling Mill Using Nonsingular Terminal Sliding Mode-Active Disturbance Rejection Control

High-Precision Coordinated Position Control of Integrated Permanent Magnet Synchronous Linear Motor Stations

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