Optimal Design of Terminal Sliding Mode Controller for Direct Torque Control of SRMs

Sun, Xiaodong; Feng, Liyun; Zhen, Zaili; Lei, Gang; Diao, Kaikai; Guo, Youguang; Zhu, Jun

doi:10.1109/tte.2021.3111889

Cited by 40 publications

(11 citation statements)

References 38 publications

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“…Compared with state-of-the-art approaches [13][14][15][16][17][18][19][20][21][22][23][24][25][26], the proposed approach does not require the upper bound of uncertainties, which is almost impossible to obtain in many real applications. Besides, the proposed control scheme has superior tracking control performance such as convergence fast to the finite-time stable equilibrium, the non-singularity, rapid response, and the strong robustness with complex uncertainties and external disturbances.…”

Section: Remarkmentioning

confidence: 99%

“…In order to guarantee the performance of the tracking controller, the terminal sliding mode control (TSMC) scheme has been developed and discussed as an efficient methodology [13,14]. The TSMC approach has many properties such as robustness, higher precision, rapid response, and finite-time stable equilibrium.…”

Section: Introductionmentioning

confidence: 99%

“…The essential philosophy of TSMC is to design a terminal attractor sliding surface that guarantees finite-time convergence of the states. In the literature, TSMC has been successfully applied in various industrial fields, for example, switched reluctance motor [13], uncertain robot systems [14], etc. However, those approaches have three potential disadvantages: 1) singular problem, 2) slow convergence to the equilibrium, 3) chattering phenomenon problem, and hence limits its performance in practical applications.…”

Section: Introductionmentioning

confidence: 99%

“…1) The online non-negative adaptive mechanism (NAM) is used to estimate the uncertainties and disturbances. Hence, unlike the existing TSMC [13][14][15][16][17][18][19][20][21][22][23][24][25][26], the proposed approach does not require prior knowledge about the bounds of the complexity of external disturbances and complex uncertainties.…”

Section: Introductionmentioning

confidence: 99%

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Non-Negative Adaptive Mechanism-Based Sliding Mode Control for Parallel Manipulators with Uncertainties

Nguyen¹

2023

Computers, Materials &Amp; Continua

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In this paper, a non-negative adaptive mechanism based on an adaptive nonsingular fast terminal sliding mode control strategy is proposed to have finite time and high-speed trajectory tracking for parallel manipulators with the existence of unknown bounded complex uncertainties and external disturbances. The proposed approach is a hybrid scheme of the online non-negative adaptive mechanism, tracking differentiator, and nonsingular fast terminal sliding mode control (NFTSMC). Based on the online non-negative adaptive mechanism, the proposed control can remove the assumption that the uncertainties and disturbances must be bounded for the NFTSMC controllers. The proposed controller has several advantages such as simple structure, easy implementation, rapid response, chattering-free, high precision, robustness, singularity avoidance, and finite-time convergence. Since all control parameters are online updated via tracking differentiator and non-negative adaptive law, the tracking control performance at high-speed motions can be better in real-time requirement and disturbance rejection ability. Finally, simulation results validate the effectiveness of the proposed method.

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Section: Remarkmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Non-Negative Adaptive Mechanism-Based Sliding Mode Control for Parallel Manipulators with Uncertainties

Nguyen¹

2023

Computers, Materials &Amp; Continua

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“…Sliding mode control (SMC), model predictive control, adaptive control, robust control, and other control techniques can be used to reduce the impact of interference. Since SMC is not sensitive to interference and parameter changes, SMC is superior to PID control in robustness and anti-interference [15][16][17]. The Terminal sliding mode control (TSMC) strategy introduces a nonlinear function, which can make the system state achieve complete tracking of the desired state within the specified effective time based on ensuring the stability of the sliding film [18].…”

Section: Introductionmentioning

confidence: 99%

Design and Terminal Sliding Mode Control of Double Stator Bearingless Switched Reluctance Motor

2022

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This paper proposes an 18/15/8-pole bearingless switched reluctance motor (BSRM) with good decoupling performance, which optimizes the distance and number of teeth between the inner and outer stator and rotor, reduces the hysteresis force existing during phase change, improves the electromagnetic conversion efficiency, and reduces the interference of forces between torque and levitation. A three-layer rotor structure is used to design the magnetic separation frame, which eliminates the interference of magnetic lines between the torque system and the suspension system. The direct control idea is applied to control the torque and levitation forces. A new reaching law (RL) is proposed, and a torque sliding mode controller and a suspension force sliding mode controller are designed, which replace the traditional terminal sliding mode control and PID control, and improve the robustness of the control system and dynamic response. Ansoft Maxwell 2D software is used to perform electromagnetic analysis to verify the decoupling, and the control simulation model is established by MATLAB/Simulink simulation analysis, and the results are compared with the traditional controller method. The results show that the proposed control system effectively improves the dynamic response speed and robustness of the system, and verifies the effectiveness and superiority of the proposed control method.

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A new flux and multilevel hysteresis torque band DTC with lookup table‐based switched reluctance motor drive to suppress torque ripple

2024

Circuit Theory & Apps

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SummaryThe switched reluctance motor (SRM) is a prominent electrical machine drive with low cost and good performance in different drive applications. This machine's main drawbacks are torque ripple and flux ripple. However, the existing SRM‐operated direct torque control (DTC) Voltage vectors (VVs) give high torque ripples due to improper sector division and minimum selection of VVs switching states. On the other hand, a two‐level hysteresis torque band can result in torque ripples. Therefore, this paper proposed DTC using 16 partitions, active small and large VVs, and a multilevel hysteresis torque band (MHTB) strategy to mitigate the torque ripple further. More active VVs (i.e., 16) are employed in the modified sector‐based switching tables, suppressing the torque ripples. The proposed strategy is verified and validated using MATLAB/Simulink. The detailed result discusses the response of torque, flux, and speed of SRM. The DTC‐operated SRM drive experimental results prove the effective minimization of torque ripples in the proposed DTC compared to the existing DTC.

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Optimal Design of Terminal Sliding Mode Controller for Direct Torque Control of SRMs

Cited by 40 publications

References 38 publications

Non-Negative Adaptive Mechanism-Based Sliding Mode Control for Parallel Manipulators with Uncertainties

Non-Negative Adaptive Mechanism-Based Sliding Mode Control for Parallel Manipulators with Uncertainties

Design and Terminal Sliding Mode Control of Double Stator Bearingless Switched Reluctance Motor

A new flux and multilevel hysteresis torque band DTC with lookup table‐based switched reluctance motor drive to suppress torque ripple

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