A fractional order sliding mode control-based topology to improve the transient stability of wind energy systems

Musarrat, Nafiz; Fekih, Afef

doi:10.1016/j.ijepes.2021.107306

Cited by 28 publications

(10 citation statements)

References 31 publications

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“…As a branch of the control field, fractional order control has been widely used in the design of different types of controllers (Yin et al, 2014b;Al-Saggaf et al, 2020;Sheng et al, 2021) for its advantages such as flexibility and precise parameter adjustment, increasing system stability margin and enhancing system robustness, etc. Fractional order PI λ D μ control was first proposed and demonstrated its superiority over the traditional PID control by Igor Podlubny through the response analysis (Podlubny, 1999;Semmari et al, 2017;Cuong et al, 2020;Dalir and Bigdeli, 2020;Bushnaq et al, 2021;Musarrat and Fekih, 2021;Nguyen et al, 2021;Wu and Huang, 2021;Huang et al, 2022). The order parameters λ , μ of the fractional order PI λ D μ controller can be taken as any real number.…”

Section: Fractional Order Control Theorymentioning

confidence: 99%

Workspace analysis and motion control strategy of robotic mine anchor drilling truck manipulator based on the WOA-FOPID algorithm

et al. 2022

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The manipulator is the key component of the anchor drilling robot to automatically complete the anchoring operation underground. Due to the complexity of its motion equation and the limitations of its control strategy, the real-time pose and the positioning accuracy of the manipulator are inferior, which seriously restricts the safety, efficiency, and speed of roadway excavation. In order to improve the positioning accuracy and realize the optimal efficiency of the manipulator, this article designs a manipulator structure with four degrees of freedom. With the help of the D-H method and the intelligent parameter setting method, this article carries out the basic theoretical research on the kinematics and the fractional order FOPID control algorithm of the manipulator of the mining roof bolter, and formulates a manipulator motion control strategy. At the same time, combined with numerical simulations and field experiments, we explore the robustness and control efficiency of the hydraulic system of the manipulator under the working conditions of a harsh environment and limited space, and reveal that the intelligent optimization algorithm can control the motion state of the manipulator more accurately and stably after the parameters of the fractional order FOPID controller are positively determined. This study effectively solved the dynamic model uncertainty caused by time-varying internal parameters and external loads of the hydraulic servo system, optimized and reconstructed the structure and motion coefficient parameters of the manipulator, and revealed the control mechanism of a precise spatial positioning and online trajectory planning of the hydraulic servo system of the manipulator. Compared with the traditional PID control algorithm, this algorithm has a faster response speed and better expected track tracking ability. This research lays a theoretical foundation for the precise positioning and automatic support of the manipulator, and also provides a reference for the design of similar motion control algorithms.

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Section: Fractional Order Control Theorymentioning

confidence: 99%

Workspace analysis and motion control strategy of robotic mine anchor drilling truck manipulator based on the WOA-FOPID algorithm

et al. 2022

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“…In the FOSMC, the improvement in terms of chattering reduction [37] and fast response [38][39][40][41][42][43], is achievable through the concept of fractional order calculus [44]. With these advantages, the FOSMC was utilized in several applications such as aerospace [45][46][47][48], missile guidance [49][50][51], automotive [52][53], robotic [40,[54][55][56][57], energy, and power systems [58][59][60][61]. Also, the SEIR epidemic model's vaccination control policy was established by the FOSMC [62][63].…”

Section: Introductionmentioning

confidence: 99%

Fractional Order Sliding Mode Controller for HBV Epidemic System

Boonyaprapasorn¹,

Kuntanapreeda²,

Ngaimsunthorn³

et al. 2022

MMEP

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The Hepatitis-B (HBV) epidemic's dynamic can be presented as a compartment model. Determining the HBV epidemic control strategy can be considered a nonlinear feedback control problem. The sliding mode controller (SMC) is an effective feedback control method for controlling the dynamical system under disturbances. Recently, the SMC based on fractional order calculus can provide preferable characteristics for a control system such as robustness and convergence rate. In this study, the HBV epidemic system's control policy is proposed using the fractional order sliding mode controller (FOSMC). The control policy with multiple measures including vaccination, isolation, and treatment is formulated to manipulate the susceptible and the infected subpopulations to the desired level. The Lyapunov-based approach is proven for stability analysis. The control policy is applied to the simulation example to verify the feasibility of the proposed FOSMC method. The simulation results are compared with those of the integer order SMC. By the proposed method, the results reveal that the susceptible and infected subpopulations are driven to the desired levels under disturbances with a higher convergence rate compared to that of the integer one. Moreover, the proposed FOSMC method can reduce the chattering occurrence which is the primary drawback of the SMC method.

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“…Based on this, this paper establishes the electrohydraulic coupling model of the power head of raise boring machine from the dynamic principle, electrohydraulic coupling properties, and the characteristic equation of hydraulic components and puts forward the control method of the power head electrohydraulic drive system based on fractional FOPID. To further improve the control effect of the system, the genetic algorithm (GA), particle swarm algorithm (PSO), whale optimization algorithm (WOA), three groups of intelligent optimization algorithms are used to adjust the FOPID and PID controller parameters, and the influence of the above different combination algorithms on the control system is evaluated, to provide theoretical guidance for the reliability of the reaming operation of the reverse well drilling rig [21][22][23][24]. Finally, field experiments were conducted in Liuqiao Town, Suixi County, Anhui Province, to prove the effectiveness of WOA-FOPID control strategy in electrohydraulic drive control system.…”

Section: Introductionmentioning

confidence: 99%

Intelligent Control Strategy of Electrohydraulic Drive System for Raising Boring Power Head

Jun

Liu

Chen

et al. 2022

Scientific Programming

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The power head is the key part of the rock breaking work of the raise boring machine. Because the power head cannot adjust speed in time with the change in complex rock stratum, it leads to high failure rate, low work efficiency, and even accidents, so it is urgent to improve the controllability of the power head. In this paper, the electrohydraulic coupling mathematical model of the power head is established using the characteristic equations of dynamics and hydraulic components, and the control strategy of the fractional electrohydraulic drive system of the power head is proposed; genetic algorithm (GA), particle swarm optimization (PSO), and whale optimization algorithm (WOA) are used to adjust the parameters of FOPID, so as to improve the control effect of electrohydraulic system. The results show that the step response of WOA-FOPID control strategy is also better than that of genetic algorithm (GA) and particle swarm optimization (PSO). It can reach a stable state in 0.02 seconds, and the overshoot is only 0.12137%. The test verifies the correctness of the adaptive control and simulation results of the power head, which can effectively improve the adaptability of the power head to complex coal seams.

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A fractional order sliding mode control-based topology to improve the transient stability of wind energy systems

Cited by 28 publications

References 31 publications

Workspace analysis and motion control strategy of robotic mine anchor drilling truck manipulator based on the WOA-FOPID algorithm

Workspace analysis and motion control strategy of robotic mine anchor drilling truck manipulator based on the WOA-FOPID algorithm

Fractional Order Sliding Mode Controller for HBV Epidemic System

Intelligent Control Strategy of Electrohydraulic Drive System for Raising Boring Power Head

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