Optimization method for a moving-coil electromagnetic linear actuator using an improved Macaca thibetana behavior-based hierarchical GA–PSO algorithm

Wang, Geng; Lyu, Zhiqiang; Gao, Renjing; Tan, Cao

doi:10.1007/s00158-022-03335-5

Cited by 5 publications

(1 citation statement)

References 34 publications

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“…Furthermore, direct-drive pumps based on smart materials are limited in application due to short strokes and high expense [4,5]. Therefore, scholars explore novel direct-drive pumps based on the optimized design of linear pumps [6][7][8]. As a critical component of the novel pump control system to achieve high response, the direct-drive pump has become a novel hotspot for its high integration, energysaving, control flexibility, and strong stability [9,10].…”

Section: Introductionmentioning

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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