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Data-driven Sliding Mode Control for MIMO systems and Its Application on Linear Induction Motors
Dezhi Xu,Xiaoqi Song,Bin Jiang,Weilin Yang,Wenxu Yan 제어·로봇·시스템학회 2019 International Journal of Control, Automation, and Vol.17 No.7
In this paper, a model free adaptive integral sliding mode constrained control (MFAISMCC) is proposedto maintain the flux linkage of a linear induction motor (LIM) while tracking the speed reference. Firstly, themathematica model of a LIM is given after the electrical analysis. In order to linearize the motor system, thetechnology of compact form dynamic linearzation (CFDL) is applied. Then, the MFAISMCC is proposed basedon the analysed linear model. Furthermore, a novel anti-windup compensator for MIMO systems is proposed incase the actuator is within saturation. The whole closed-system stability is proven by Lyapunov stability method. Finally, some simulation results are given to testify the effectiveness of the proposed method compared with thePID controllers.
Enhanced Data Driven Model-Free Adaptive Yaw Control of Unmanned-Aerial-Vehicle Helicopter
Hongcheng Zhou,Daobo Wang,Dezhi Xu 보안공학연구지원센터 2016 International Journal of Multimedia and Ubiquitous Vol.11 No.2
In this paper, an enhanced data driven model-free adaptive yaw control tracking control scheme is proposed for the yaw channel of an unmanned-aerial-vehicle helicopter that is non-affine in the control input. By dynamic linearization and observer techniques, the proposed control algorithm is only based on the PPD parameter estimation derived online from the I/O data of the controlled system, and Lyapunov-based stability analysis is used to prove all signals of close-loop control system are bounded. Compared with the traditional model free adaptive control, the proposed enhanced model free control algorithm can make the closes-loop control system with stronger robustness and better anti-jamming ability. Finally, the simulation results of the dynamic model of a real helicopter-on-arm are offered to demonstrate the effectiveness of the proposed new control techniques.
Mover Field Oriented Control of Linear Permanent-Magnet Vernier Motor Considering Loss Minimization
Qiu, Xianqun,Zhao, Wenxiang,Chen, Qian,Xu, Dezhi The Korean Institute of Electrical Engineers 2017 Journal of Electrical Engineering & Technology Vol.12 No.3
A linear permanent-magnet vernier (LPMV) motor has magnets and windings in the short mover, which is very suitable for long stroke applications. This paper proposed a new field oriented control with space vector pulse width modulation for the LPMV motor, which considers loss minimization. First, the topology of the LPMV motor is briefly presented. Then, the mathematical model is derived, and the mover field oriented control strategy is proposed. Also, the loss analysis is performed. Finally, the simulated and experimental results are given, verifying the feasibility and effectiveness of the proposed control strategy.
Huaifen Su,Xiaoxue Wang,Yuanwei Sun,Dan Xu,Lei Li,Caihua Liu,Suyuan Zeng,Dezhi Sun 대한화학회 2017 Bulletin of the Korean Chemical Society Vol.38 No.10
This work aims to provide a facile method for the preparation of Mn-doped hematite microrods and reveals the relationship between Mn doping and the enhanced adsorption properties. The adsorption performance of hematite could be greatly enhanced by Mn doping. The maximal adsorption capacity of the Mn-doped α-Fe2O3 is calculated to be 84.54 mg/g, which exhibits obviously enhanced adsorption capacity as compared to the un-doped α-Fe2O3 (33.02 mg/g). To further understand the adsorption process, the adsorption kinetic as well as thermodynamic behaviors are carefully investigated. The results suggest that the adsorption process of CR onto the adsorbents follows the pseudo-second-order kinetic model. Meanwhile, the adsorption process can be designated to be a Langmuir process. The adsorption capacities of CR vary as a function of Mn contents, which are regarded as the synergistic effect between surface areas and pore sizes.
Mover Field Oriented Control of Linear Permanent-Magnet Vernier Motor Considering Loss Minimization
Xianqun Qiu,Wenxiang Zhao,Qian Chen,Dezhi Xu 대한전기학회 2017 Journal of Electrical Engineering & Technology Vol.12 No.3
A linear permanent-magnet vernier (LPMV) motor has magnets and windings in the short mover, which is very suitable for long stroke applications. This paper proposed a new field oriented control with space vector pulse width modulation for the LPMV motor, which considers loss minimization. First, the topology of the LPMV motor is briefly presented. Then, the mathematical model is derived, and the mover field oriented control strategy is proposed. Also, the loss analysis is performed. Finally, the simulated and experimental results are given, verifying the feasibility and effectiveness of the proposed control strategy.