Multiphysics methodology for thermal modelling and quantitative analysis of electromagnetic linear actuator

Tan, Cao; Li, Bo; Liu, Yongteng; Ge, Wenqing; Sun, Bin

doi:10.1088/1361-665x/ab2d39

Cited by 12 publications

(4 citation statements)

References 26 publications

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“…The plunger is driven by inputting the desired voltage for precise reciprocating action indirectly, and the flow is distributed based on the check valve train to achieve stable output flow. The schematic diagram of the EDDP is shown in figure 1 [32,33].…”

Section: The Operating Principle Of the Eddpmentioning

confidence: 99%

Adaptive disturbance observer-based improved super-twisting sliding mode control for electromagnetic direct-drive pump

Lu¹,

Tan²,

Ge³

et al. 2022

Smart Mater. Struct.

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In this study, to enhance the frequency-flow characteristics of the novel electromagnetic direct-drive pump (EDDP). An adaptive disturbance observer-based improved super-twisting sliding mode control (ISTSMC-ADOB) is proposed to address the problem in which the response quality is deteriorated by factors such as parameter mismatch and disturbance. An adaptive disturbance observer (ADOB) is designed to achieve adaptive compensation, avoid the use of high-gain feedback, and extend the applicability of the conventional disturbance observer (DOB). An improved super-twisting sliding mode control (ISTSMC) based on the fast terminal sliding mode (FTSM) algorithm is designed to ensure faster convergence of the error in finite time. By combining the ADOB with the ISTSMC, the conservative parameter selection of the sliding mode control (SMC) is avoided, and the accuracy and robustness are further strengthened. The stability is analyzed based on Lyapunov. The results show that the proposed method effectively improves the steady-state accuracy, response speed, and robustness in trajectory tracking of the electromagnetic linear actuator (EMLA) for the EDDP. This further enhances the frequency-flow characteristics of the system.

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Section: The Operating Principle Of the Eddpmentioning

confidence: 99%

Adaptive disturbance observer-based improved super-twisting sliding mode control for electromagnetic direct-drive pump

Lu¹,

Tan²,

Ge³

et al. 2022

Smart Mater. Struct.

Self Cite

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“…Therefore, many scholars have paid much attention to the Eddy effect and its influence on the dynamic response characteristics of the HSV. Zhao et al [26], Bai et al [27], and Tan et al [28] conducted numerical simulations to find that the Eddy effect has an important impact on the dynamic response of the HSV. Moreover, Zhao et al found that the Eddy effect exerts a greater influence on the actuation response time than the release response time for the conventional HSV.…”

Section: Introductionmentioning

confidence: 99%

Eddy Effect and Dynamic Response of High-Speed Solenoid Valve with Composite Iron Core

Liu,

Zhang,

Zhao

et al. 2023

Materials

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To alleviate the Eddy effect of the high-speed solenoid valve (HSV) and improve its dynamic response speed, a novel HSV with a composite iron core is presented. The time-step finite element method is used to establish and verify the numerical simulation of HSV coupling multiple physical fields. Then, the Eddy effect and dynamic response characteristics of the conventional and composite HSVs are further compared and analyzed. The results showed that the Eddy current loss in the main pole was the largest for the conventional HSV, accounting for 72.5% and 64.4% in the actuation and release processes, respectively. It was found that the Eddy effect of the composite HSV was obviously weakened, and the total Eddy current losses in the actuation and release processes were reduced by 58.8% and 38.7%, respectively. Meanwhile, the actuation response time and release response time of the composite HSV were shortened by 15.6% and 18.5%, respectively. In addition, increasing the peak voltage further shortened the actuation response time of the composite HSV, but had no significant effect on the response time of the conventional HSV.

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“…In recent years, with the rapid development of smart materials, high magnetic energy rare earth permanent magnet materials, manufacturing technology, and advanced control theory. Scholars have further improved the performance of micro linear motors by using highly magnetic materials, designing Halbach arrays instead of conventional pole structures, as well as applying superconducting materials to make windings [6][7][8]. The electromagnetic linear actuators, as an important development direction of linear motors, have become a research hotspot for high-performance linear servo control due to the advantages of cogging-free torque, high linearity, simple structure, and convenient control compared to conventional permanent magnet synchronous linear motors [9,10].…”

Section: Introductionmentioning

confidence: 99%

Adaptive Non-Singular Terminal Sliding Mode Control Method for Electromagnetic Linear Actuator

Tan

et al. 2022

Micromachines

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In this study, to further improve the dynamic performance and steady-state accuracy of the electromagnetic linear actuator (EMLA) for the direct-drive system, the adaptive non-singular terminal sliding mode controller (ANTSMC) based on an improved disturbance observer (IDOB) is proposed. Accurate modeling of the EMLA based on the LuGre friction model was obtained by identification. Aiming at the continuous disturbance of the system, a non-singular terminal sliding mode control based on improved exponential reaching law (IERL) is designed, which is combined with the advantages of fuzzy control. Adaptive adjustment of the IERL gain is achieved to ensure finite time convergence of the tracking error while suppressing system jitter. Based on the IDOB to achieve effective observation compensation under noise disturbance and further improve the system robustness. The stability of the control is analyzed based on the Lyapunov function. The results show that the proposed method suppresses the jitter and improves the tracking performance and robustness of the servo system for different desired trajectories effectively.

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Multiphysics methodology for thermal modelling and quantitative analysis of electromagnetic linear actuator

Cited by 12 publications

References 26 publications

Adaptive disturbance observer-based improved super-twisting sliding mode control for electromagnetic direct-drive pump

Adaptive disturbance observer-based improved super-twisting sliding mode control for electromagnetic direct-drive pump

Eddy Effect and Dynamic Response of High-Speed Solenoid Valve with Composite Iron Core

Adaptive Non-Singular Terminal Sliding Mode Control Method for Electromagnetic Linear Actuator

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