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36th Chinese Control and Decision Conference (CCDC)

作者： Huang, Wenhua Pan, Lin Wang, Jiying Shen, Zihao He, Zijian Wuhan Univ Technol Sch Transportat & Logist Engn Wuhan 430063 Peoples R China Wuhan Univ Technol Sanya Sci & Educ Innovat Pk Sanya 572025 Peoples R China Hebei Huifeng Network Technol Dev Co Ltd Shijiazhuang 050092 Hebei Peoples R China Wuhan Univ Technol Qingdao Inst Qingdao 266200 Peoples R China

ISBN: (纸本)9798350387780;9798350387797

This article introduces an advanced approach in the realm of control strategies-Fractional-Order non-singular Fast terminal sliding mode Control (IFO-NFTSMC). The foundation of this strategy lies in the combination of an Adaptive Load Torque Observer (ALTO) tailored for direct-driven Permanent Magnet Synchronous Generators (D-PMSG). The primary objective is to address the speed loop of the Machine Side Inverter (MSC) with the aim of capturing the maximum power point of the wind turbine. Central to this control paradigm is the incorporation of an Improved non-singular Fast terminal sliding mode Surface (INFTSMS) enriched with fractional terms, introducing heightened design flexibility. Moreover, an exponential function is integrated into the isovelocity term of the exponential reaching rate, and a smooth S-function replaces the original sign function to mitigate the chattering effect inherent in the controller. Following this, the ALTO assumes a pivotal role by offering feedforward compensation for the generated q-axis current, thereby augmenting the disturbance rejection capabilities of the controller. To assess the efficacy of the proposed IFONFTSMC+ALTO in comparison with other sliding mode controllers, simulation experiments were conducted on the D-PMSG under stepped wind speeds. The outcomes underscore the exceptional performance of the controller, revealing swift response times and surpassing its counterparts in terms of vibration suppression and disturbance rejection capabilities.

关键词： maximum power point tracking fractional order non-singular terminal sliding mode controller adaptive load torque observe

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Adaptive non-singular terminal sliding mode Control for an Unmanned Underwater Vehicle: Real-time Experiments

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INTERNATIONAL JOURNAL OF CONTROL AUTOMATION AND SYSTEMS 2020年第3期18卷 615-628页

作者： Rangel, Miguel Angel Garcia Manzanilla, Adrian Suarez, Angel Eduardo Zamora Munoz, Filiberto Salazar, Sergio Lozano, Rogelio Natl Polytechn Inst Lab LAFMIACINVESTAVUMI Ctr Res Adv Studies Mexico City Mexico Natl Council Sci Technol CONACYT Mexico City Mexico Univ Technol Compiegne Compiegne France

This research work focuses on the design of a robust-adaptive control algorithm for a 4DOF Unmanned Underwater Vehicle (UUV). The proposed strategy is based in a non-singular terminal sliding mode Control (NTSMC) with adaptive gains, where the proposed adaptation mechanism ensures that the gains remain bounded. In this control strategy a non-singular terminal sliding surface is proposed to obtain a faster convergence of the tracking errors. The NTSMC ensures Practical Finite-Time Stability for the closed-loop system as well as exhibits a chattering reduction. In order to demonstrate the satisfactory performance of the proposed controller, a set of experiments was performed with a non-singular terminal sliding mode controller and an Adaptive non-singular terminal sliding mode Control (ANTSMC) in real time for trajectory tracking in the X-Y plane, the graphs showed that the ANTSMC converges faster to a smaller region and reduces oscillations.

关键词： non-singular terminal sliding mode controller real-time experiments unmanned underwater vehicle

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Adaptive terminal sliding mode Control for Magnetic Levitation System With Observer 16

Adaptive Terminal Sliding Mode Control for Magnetic Levitati...

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16th IEEE Conference on Industrial Electronics and Applications (ICIEA)

作者： Feng, Wei Hao, Jianhua Wang, Sen Ma, Xianchao Sun, Xicong Jing, Yongzhi Southwest Jiaotong Univ Minist Educ Sch Elect Engn Chengdu Peoples R China Southwest Jiaotong Univ Minist Educ Key Lab Magnet Suspens Technol & Maglev Vehicle Chengdu Peoples R China

ISBN: (纸本)9781665422482

In order to improve the convergence rate and disturbance reject ability of magnetic levitation system, this paper proposes an observer-based adaptive non-singular terminal sliding mode controller. Firstly, the dynamical model of magnetic levitation ball system is deduced, Then on the basis of the sliding mode control (SMC), an adaptive non-singular terminal sliding mode control(ANTSMC) is constructed. The ANTSMC can speed up the convergence speed and reduce chattering. In order to enhance the anti-interference ability,state estimation are cooperated into ANTSMC by using state observer. The simulation results confirmed the closed-loop magnetic levitation system performance both in dynamic response and disturbance attenuation, corresponding quantitative comparison could also show the advantages of proposed control scheme.

关键词： magnetic levitation ball system non-singular terminal sliding mode controller adaptive controller observer

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Improved State Machine Strategy Based on Consumption Minimization for Fuel Cell/Battery/Ultracapacitor Hybrid Electric Vehicles 33

Improved State Machine Strategy Based on Consumption Minimiz...

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33rd Chinese Control and Decision Conference (CCDC)

作者： Wang, Congcong Wang, Haoping Tian, Yang Nanjing Univ Sci & Technol Automat Sch Sino French Int Joint Lab Automat Control & Signa Nanjing 210094 Peoples R China

ISBN: (纸本)9781665440899

In this paper, an improved state machine control strategy based on equivalent consumption minimization for fuel cell/battery/ultra-capacitor hybrid electric vehicles is presented. By combining with an improved state machine control strategy, the power of the three power sources (fuel cell, battery and ultracapacitor) is reasonably allocated to improve the performance of the equivalent consumption minimization strategy (ECMS). In addition, the current is tracked by the non-singular terminal sliding mode controller (NTSMC) to obtain accurate current. The proposed method can effectively reduce the fuel consumption of the system and improve the fuel cell efficiency. The fuel cell hybrid vehicle is modeled in MATLAB/Simulink. The simulation results show that compared with the state machine and equivalent consumption minimization strategy, this method can effectively reduce hydrogen consumption and reduce the consumption cost of fuel cell hybrid electric vehicles.

关键词： Improved State Machine Fuel Cell/Battery/Ultra-capacitor Equivalent Consumption Minimization Strategy non-singular terminal sliding mode controller Hydrogen Consumption

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Finite-time stabilization for a novel non-contact spacecraft with a small air-clearance range constraint

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MECHANICAL SYSTEMS AND SIGNAL PROCESSING 2022年 180卷

作者： Liao, He Qi, Jirong Xie, Jinjin Zhu, Zhu Zhao, Yanbin Feng, Junhua Nanjing Univ Aeronaut & Astronaut Inst Astronaut Nanjing 211106 Peoples R China Shanghai Satellite Engn Inst Shanghai 201109 Peoples R China State Key Lab Astronaut Dynam Xian 710043 Peoples R China

The novel non-contact spacecraft can achieve physical vibration isolation through the non -contact Lorentz actuator (NCLA), thereby providing ultra-high payload pointing accuracy and stability. However, due to the change in the relative position of magnet and coil, the NCLA can ensure accurate control input only in the linear working range, but not in the entire air-clearance range. To address this problem, this paper proposes an adaptive finite-time observer for the external and inner disturbance torques caused by the nonlinear effect of the NCLA. Moreover, a novel non-singular terminal sliding mode controller is proposed to guarantee the non-contact spacecraft architecture can rapidly enter into the linear range of the NCLA with a small air -clearance range constraint in a complex external environment. Simulations and experiments are conducted on the air-bearing platform with dual five-degree-of-freedom to verify the feasi-bility and effectiveness of the proposed approach.

关键词： Adaptive finite-time observer non-contact spacecraft non-singular terminal sliding mode controller Small air-clearance range constraint

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Improved State Machine Strategy Based on Consumption Minimization for Fuel Cell/Battery/Ultracapacitor Hybrid Electric Vehicles

Improved State Machine Strategy Based on Consumption Minimiz...

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第33届中国控制与决策会议

作者： Congcong Wang Haoping Wang Yang Tian Sino-French International Joint Laboratory of Automatic Control and Signal Processing Automation SchoolNanjing University of Science and Technology

In this paper,an improved state machine control strategy based on equivalent consumption minimization for fuel cell/battery/ultra-capacitor hybrid electric vehicles is *** combining with an improved state machine control strategy,the power of the three power sources(fuel cell,battery and ultracapacitor) is reasonably allocated to improve the performance of the equivalent consumption minimization strategy(ECMS).In addition,the current is tracked by the non-singular terminal sliding mode controller(NTSMC) to obtain accurate *** proposed method can effectively reduce the fuel consumption of the system and improve the fuel cell *** fuel cell hybrid vehicle is modeled in MATLAB/*** simulation results show that compared with the state machine and equivalent consumption minimization strategy,this method can effectively reduce hydrogen consumption and reduce the consumption cost of fuel cell hybrid electric vehicles.

关键词： Improved State Machine Fuel Cell/Battery/Ultra-capacitor Equivalent Consumption Minimization Strategy non-singular terminal sliding mode controller Hydrogen Consumption

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A Novel sliding mode Control Technique for DC to DC Buck Converter

A Novel Sliding Mode Control Technique for DC to DC Buck Con...

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IEEE International Conference on Circuits, Power and Computing Technologies (ICCPCT)

作者： Kumbhojkar, Aditi Patel, Nitinkumar Kumbhojkar, Anant Walchand Coll Engn Dept Elect Engn Sangli Maharashtra India PVPIT Budhgaon Dept Mech Engn Sangli India

ISBN: (纸本)9781479923977

In this paper, the sliding mode controller for DC to DC converter is discussed. The performance of conventional PI controller and non-singular terminal sliding mode controller is tested for reference disturbance, line disturbance and load disturbance conditions. Mathematical model of DC to DC Buck converter is derived and the simulations for above discussed conditions are carried out in MATLAB/Simulink environment. It is observed that the response time, transient response and the time of convergence of sliding mode controller is superior to that of the PI controller.

关键词： Buck converter PI controller sliding mode controller non-singular terminal sliding mode controller

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A sliding mode controller with Cascaded Control Technique for DC to DC Boost Converter

A Sliding Mode Controller with Cascaded Control Technique fo...

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IEEE International Conference on Circuits, Power and Computing Technologies (ICCPCT)

作者： Kumbhojkar, Aditi Patel, Nitinkumar Walchand Coll Engn Dept Elect Engn Sangli India

ISBN: (纸本)9781479923977

In this paper, the sliding mode controller cascaded with PI voltage controller for DC to DC Boost converter is discussed. General design issues of sliding mode controller for boost converter are discussed and the need of cascade controller is established. The cascade control consists of voltage controller which is a PI controller and non-singular terminal sliding mode controller. The performance of conventional PI controller and non-singular terminal sliding mode controller for current control is tested for reference disturbance, line disturbance and load disturbance conditions. The simulations for above conditions are carried out in MATLAB/Simulink environment. The simulation results are presented to validate the effectiveness of proposed system.

关键词： Boost converter Cascade Control sliding mode controller non-singular terminal sliding mode controller

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