A Method of Constraint Handling for Speed-Controlled Induction Machines

Hu, Zheng; Hameyer, Kay

doi:10.1109/tie.2016.2532843

Cited by 14 publications

(7 citation statements)

References 28 publications

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“…This means adjusting more control parameters. Moreover, due to the small time constants of inner control loops, the cascade PI controllers are not suitable for highly dynamic drive applications [26]. Hence, the non-cascading control has its own advantages.…”

Section: A Dynamic Models Of Dc-dc Buck Convertersmentioning

confidence: 99%

Overcurrent Protection Control Design for DC-DC Buck Converter With Disturbances

2019

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This paper deals with the output voltage regulation problem for dc-dc buck converters. Overcurrent protection and disturbances are both taken into consideration. The main challenge of control design is how to ensure that the current constraints are not violated at any time in the presence of disturbances. At first, a high-gain disturbance observer is utilized to estimate the disturbances. Then, a novel punishment mechanism for the inductor current is designed in the control scheme. Finally, based on the novel current-constrained technique and the high-gain disturbance observer, a composite control approach is proposed. The new control method not only guarantees the current within the required range but also has a nice ability on the disturbance rejection. In the meantime, rigorous stability proof is also presented. The theoretical analysis also explains how disturbances affect the satisfaction of the current constraints. The experimental results on a buck converter system are illustrated to verify the feasibility and effectiveness of the proposed control scheme.INDEX TERMS DC-DC buck converter, overcurrent protection, current-constrained controller, disturbance observer.

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Section: A Dynamic Models Of Dc-dc Buck Convertersmentioning

confidence: 99%

Overcurrent Protection Control Design for DC-DC Buck Converter With Disturbances

2019

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“…It should be emphasized that conservative parameters should be selected to reduce system overshoot. It unavoidably leads to weakness in the antiinterference capability and dynamic performance of PMSM systems [4]. Moreover, PI controllers in cascade structure unavoidably affect the transient response and dynamic performance of PMSM systems [5].…”

Section: Introductionmentioning

confidence: 99%

Novel fast terminal sliding mode controller with current constraint for permanent-magnet synchronous motor

Yao¹,

Kong²,

Ding³

2021

Turkish Journal of Electrical Engineering and Computer Sciences

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Under the noncascade structure, the balance between q-axis current constraint and dynamic performance in permanent-magnet synchronous motor system has become a critical problem. On the one hand, large transient current is required to provide high torque to achieve fast dynamic performance. On the other hand, current constraint becomes a state constraint problem, instead of governing q-axis reference current in the cascade structure directly. Aiming at this issue, a novel fast terminal sliding mode control (FTSMC)-based controller with current constraint is developed in this paper. The novelty of this scheme is related to the proposed penalty function based on interior point method, which is established in control action directly. Unlike ordinary solutions, the suggested solution combined with sliding mode variable can achieve current constraint of q-axis without scarifying dynamic performance. Furthermore, by adopting the FTSMC-type surface and new reaching law, the proposed implementation guarantees high performance with significant reduction of chattering phenomenon and has fast convergence characteristics. Then, the stability proof of the whole closed-loop system by employing the Lyapunov method is given in detail. Finally, series of simulations are provided to evaluate the performance of the presented FTSMC-type controller, in terms of current constraint, dynamic performance, and chattering reduction.

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“…Currently, there are many articles about model predictive control of PMSM. The literature , respectively, designed an MPC speed controller and MPC current controller, which replaces the PI‐based speed controller in traditional vector control. The current controller improves the robustness of the system, but there are still problems in the control system regarding the overall optimization of the cascade control system.…”

Section: Introductionmentioning

confidence: 99%

“…Currently, there are many articles about model predictive control of PMSM. The literature [15,16], respectively, designed an MPC speed controller and MPC current controller, which replaces the a Correspondence to: Fengyang Liu. E-mail: superlfy93@163.com *Harbin University of Science and Technology, 52 Xuefu Rd, Nangang, Harbin, Heilongjiang 150080, China **Harbin Institute of Technology, No.…”

Section: Introductionmentioning

confidence: 99%

Single‐loop model prediction control of PMSM with moment of inertia identification

Liu

Erliang

Cui

2020

IEEJ Transactions Elec Engng

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In order to improve the dynamic response performance and robustness of the permanent magnet synchronous motor control system and optimize the parameter adjustment of the control system, a motor control method based on single‐loop model prediction and moment of inertia parameter identification with forgetting factor is proposed. First, the motor state equation in the prediction model is designed, and the single‐loop model predictive control method is proposed. Then, comparing the effects of various parameters of the motor on the running stability of the motor, a least‐squares identification method based on forgetting factor is added to identify the moment of inertia online and optimize the prediction model in real time. The simulation and experimental results show that the proposed method has good dynamic performance for the permanent magnet synchronous motor adapting to the rotational speed and load variation. At the same time, the addition of the moment of inertia identification enhances the accuracy and system robustness of the motor model parameters during the model prediction process. This method provides an effective way of engineering control. © 2020 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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A Method of Constraint Handling for Speed-Controlled Induction Machines

Cited by 14 publications

References 28 publications

Overcurrent Protection Control Design for DC-DC Buck Converter With Disturbances

Overcurrent Protection Control Design for DC-DC Buck Converter With Disturbances

Novel fast terminal sliding mode controller with current constraint for permanent-magnet synchronous motor

Single‐loop model prediction control of PMSM with moment of inertia identification

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