Intelligent fractional-order integral sliding mode control for PMSM based on an improved cascade observer

Xiao, Lingfei; Ma, Leiming; Huang, Xinhao

doi:10.1631/fitee.2000317

Cited by 10 publications

(4 citation statements)

References 27 publications

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“…To attain a swift response in attitude control, the FNTSM is employed as the inner loop controller. In the outer loop, the traditional PD-type sliding surface is further refined into a PID-type sliding surface, integrating an integral term to eliminate steady-state error and enhance position control accuracy [34]. Due to the intricacies of operating conditions and uncertainties in payloads, establishing an accurate mathematical model for rotorcraft logistic UAVs is a considerable challenge.…”

Section: Introductionmentioning

confidence: 99%

Finite-Time Robust Flight Control of Logistic Unmanned Aerial Vehicles Using a Time-Delay Estimation Technique

Ma,

Yu,

et al. 2024

Drones

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This paper proposes a cascaded dual closed-loop control strategy that incorporates time delay estimation and sliding mode control (SMC) to address the issue of uncertain disturbances in logistic unmanned aerial vehicles (UAVs) caused by ground effects, crosswind disturbances, and payloads. The control strategy comprises a position loop and an attitude loop. The position loop, which functions as the outer loop, employs a proportional–integral–derivative (PID) sliding mode surface to eliminate steady-state error through an integral component. Conversely, the attitude loop, serving as the inner loop, utilizes a fast nonsingular terminal sliding mode approach to achieve finite-time convergence and ensure a quick system response. The time-delay estimation technique is employed for the online estimation and real-time compensation of unknown disturbances, while SMC is used to enhance the robustness of the control system. The combination of time-delay estimation and SMC offers complementary advantages. The stability of the system is proven using Lyapunov theory. Hardware-in-the-loop simulation and flight tests demonstrate that the control law can achieve a smooth and continuous output. The proposed control strategy can be effectively applied in complex scenarios, such as hovering, crash recovery, and high maneuverability flying, with significant practicality in engineering applications.

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Section: Introductionmentioning

confidence: 99%

Finite-Time Robust Flight Control of Logistic Unmanned Aerial Vehicles Using a Time-Delay Estimation Technique

Ma,

Yu,

et al. 2024

Drones

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“…Hence, it is imperative to minimize load fluctuations to enhance dynamic characteristics. Lingfei Xiao et al [3] proposed a fractional order integral sliding mode automatic control (FOISMC) strategy based on an optimized cascade observer. Jiang Junfeng et al [4] have devised an optimized controller featuring a swift sliding surface and a continuous approaching law integral terminal sliding mode.…”

Section: Introductionmentioning

confidence: 99%

Research on Synchronous Control System of Multi-Motor Driven Scraper Conveyor

Bai,

Zhang,

Pei

2024

Advances in Transdisciplinary Engineering

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In the domain of conventional dual or triple-drive scraper conveyors, the bedrock of coal transportation lies in the utilization of motor-driven chains located at both the head and tail ends. This operational framework frequently necessitates recurrent, high-load initiations. Consequently, these scraper conveyors are prone to a spectrum of challenges, encompassing power inadequacies, vexing initiation procedures, motor overheating incidents, and chain integrity breaches. To address these formidable impediments, this article introduces an innovative paradigm: the uniformly distributed multi-motor-driven scraper conveyor. Within this context, a comprehensive array of control models is conceived, featuring both a direct-drive control model employing permanent magnet motors and a synchronous control model for the orchestration of multiple motors. Rigorous theoretical analyses and simulations, executed using the MATLAB/Simulink platform, illuminate a compelling revelation: when matched for equivalent transport capacities, the power prerequisites of the uniformly distributed three-motor-driven scraper conveyor experience a marked reduction. Extending this discourse, the article proceeds to delineate multi-motor control paradigms, spanning the domains of parallel control, master-slave control, and deviation-coupled control. Subsequently, a meticulous comparative analysis unfolds, elucidating the respective merits and demerits of these three synchronous control methodologies, all rooted in the crucible of simulation-derived results.

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“…Grid-connected power generation from renewable energy sources, represented by solar and wind energy, has become a trend in the development of new power systems [1] . With the improvement of PV power generation efficiency and the increase of grid-connected capacity, the control performance of PV inverters has a more significant impact on the power quality of the grid, and the study of its control strategy is of great significance for the development of new power systems [2] .…”

Section: Introductionmentioning

confidence: 99%

Control Strategy Based on Improved Sliding Mode Control for T-type 3L PV Grid-connected Inverter

Sun,

Fan,

Yin

2023

J. Phys.: Conf. Ser.

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This paper analyzes the mathematical model and working principle of a T-type 3 L PV inverter and introduces the control structure of a grid-connected PV inverter. In view of the influence of the sliding mode controller (SMC) rooted on the traditional reaching law (RL) on the control performance for grid-connected PV inverters as the current inner loop, such as large THD, this paper proposes a novel RL in the inner loop SMC to improve the tracking effect and robustness of the controller. The design method of each link of the SMC based on the proposed novel RL is described in the paper. Then, the stability analysis of the improved SMC is carried out. The experiment has been carried out on the experimental operating platform of the T-type 3 L PV grid-connected inverter system. The experimental results allow expressing that the designed control strategy can modify the dynamic performance of the system, reduce the harmonic distortion rate of the incoming current, and maintain the system with strong anti-interference capability under the premise of making the PV power generation system operate stably.

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Intelligent fractional-order integral sliding mode control for PMSM based on an improved cascade observer

Cited by 10 publications

References 27 publications

Finite-Time Robust Flight Control of Logistic Unmanned Aerial Vehicles Using a Time-Delay Estimation Technique

Finite-Time Robust Flight Control of Logistic Unmanned Aerial Vehicles Using a Time-Delay Estimation Technique

Research on Synchronous Control System of Multi-Motor Driven Scraper Conveyor

Control Strategy Based on Improved Sliding Mode Control for T-type 3L PV Grid-connected Inverter

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