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Chinese control and Decision Conference, CCDC

作者： Yiyun Li Zhi Zhang Haohui Chen Huaizhi Wang Bin Ren Department of Electrical Engineering and Automation Dongguan University of Technology Dongguan College of Mechatronics and Control Engineering Shenzhen University Shenzhen China

ISBN: (纸本)9781665478977

The structure of islanded microgrids is complex and has many problems. For this problem of equalizing the fundamental active power, many articles use the traditional droop control, which cannot simulate the physical characteristics of inertia and damping in the power generation process, which are considered by the virtual synchronous generator (VSG) technology. The mismatch of the feeder impedance can lead to the inequality of unbalanced harmonic power for the parallel inverters. To address this problem, a control method is proposed that injects an additional small AC signal (SACS)into the output voltage of each inverter and adds an adaptive virtual impedance. This method is similar to the conventional active-frequency droop control, where the output frequency of the injected SACS is linearly related to the output unbalanced harmonic power. When the unbalanced harmonic power rises, the output frequency of the injected signal also rises. And the virtual impedance on the negative sequence series is adjusted by detecting the active power generated by the injected SACS. When the system is stable, the frequency of the injected SACS in each inverter will be the same, and the sum of the virtual inductance and the feeder inductance of each inverter will be the same. The active power and the unbalanced harmonic power of the parallel distributed generator set can be equally shared without communication.

关键词： Damping Inductance Microgrids Power system harmonics Harmonic analysis Inverters Synchronous generators

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Synchronization Tracking of Heterogeneous Robotic Systems with Parametric Uncertainties and Communication Delays 5

Synchronization Tracking of Heterogeneous Robotic Systems wi...

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5th International Conference on Information, Cybernetics, and Computational Social Systems, ICCSS 2018

作者： Yao, Xiang-Yu Ge, Ming-Feng Ding, Hua-Feng Wang, Leimin Liu, Jie Han, Tao Liu, Zhi-Wei School of Mechanical Engineering and Electronic Information China University of Geosciences Wuhan430074 China School of Automation China University of Geosciences Wuhan430074 China Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems Huazhong University of Science and Technology Wuhan430074 China School of Hydropower and Information Engineering Huazhong University of Science and Technology Wuhan430074 China College of Mechatronics and Control Engineering Hubei Normal University Huangshi435002 China School of Automation Huazhong University of Science and Technology Wuhan430074 China

ISBN: (纸本)9781538670880

This paper studies synchronization tracking problems of heterogeneous robotic systems in the presence of kinematic uncertainties, dynamic uncertainties and communication delays. To solve the above problems, this paper develops cooperative adaptive controllers based on directed topologies containing spanning trees, which relaxes the constraints on communications than the previous works with undirected or strongly connected topologies. By invoking Lyapunov stability and Input-output stability techniques, sufficient criteria for asymptotical stability of the systems are obtained. Moreover, the obtained results are expanded to formation problems in similar cases. Finally, the validity of the theoretical results and the numerical comparisons with existing work are supported by numerous simulations. © 2018 IEEE.

关键词： Topology

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Regenerative Braking System in E-Trike: Interval Type-2 Fuzzy Logic control to Enhance Driving Range 5

Regenerative Braking System in E-Trike: Interval Type-2 Fuzz...

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5th IEEE International Conference on Technology, Informatics, Management, engineering and Environment, TIME-E 2024

作者： Wahid, Muhammad Rizalul Joelianto, Endra Arief Budiman, Bentang Institut Teknologi Bandung Doctoral Program in Engineering Physics Bandung Indonesia Universitas Pendidikan Indonesia Mechatronics and Artificial Intelligence Bandung Indonesia Institut Teknologi Bandung Instrumentation Control and Automation Research Group Bandung Indonesia Institut Teknologi Bandung Faculty of Mechanical and Aerospace Engineering Bandung Indonesia

ISBN: (纸本)9798350364743

Electric vehicles (EV s) boast zero tailpipe emissions, directly improving air quality and lowering greenhouse gas emissions. Despite the promise of EVs for sustainable transportation, their limited range is a key challenge. Regenerative braking is a promising approach for enhancing the driving range. This research proposes a study of Interval Type-2 Fuzzy Logic (IT2FL) control to improve regenerative braking efficiency in an electric trike. Employing IT2FL control for regenerative braking recovers 35.84% of energy, translating to a 91.053 km increase in driving range. The IT2FL method achieved a range of 50 km/kWh, representing a significant 41.7% improvement. Furthermore, utilizing the Nie-Tan Method reducer within the IT2FL framework could extend the range by an additional 2.3 km, resulting in a 3 % increase in energy recovery. These findings demonstrate the effectiveness of IT2FL control in enhancing regenerative braking efficiency for the electric trike. © 2024 IEEE.

关键词： Air quality

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An improving analytically model with high accuracy for a micro manipulator

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Journal of Information Hiding and Multimedia Signal Processing 2015年第6期6卷 1242-1249页

作者： Ni, Yuan Deng, Zong-Quan Li, Jun-Bao Wu, Xiang Li, Long Research Center of Aerospace Mechanism and Control School of Mechatronics Engineering Harbin Institute of Technology China Shanghai Key Laboratory of Mechanical Automation and Robotics SSchool of Mechatronic Engineering and Automation Shanghai University China

A proposed mathematical model is established for modal analysis of a micro manipulator. According to the geometric characteristics of the manipulator, the model is built by using finite element method with multipoint constraint equations, and the corresponding displacement coordinate matrix is obtained after that. Considering that the regular flexure hinge plays a key role, in this analysis process, the hinge is treated as a varied cross-section Euler-Bernoulli beam element and the finite element model is established by a new procedure which followed the element internal equilibrium principle consequently. The stiffness matrix, the mass matrix and the exact shape functions of the non-prismatic beam element can be obtained respectively. Furthermore, the influences of geometric parameters on the fundamental frequency can also be discussed. © 2015 Ubiquitous International. All rights reserved.

关键词： Natural frequencies

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A lightweight pedestrian detection model for edge computing systems 17th

A lightweight pedestrian detection model for edge computing ...

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17th International Symposium on Distributed Computing and Artificial Intelligence, DCAI 2020

作者： Chen, Wen-Hui Kuo, Han-Yang Lin, Yu-Chen Tsai, Cheng-Han Graduate Institute of Automation Technology National Taipei University of Technology Taipei Taiwan Department of Automatic Control Engineering Feng Chia University Taichung Taiwan Mechanical and Mechatronics Systems Laboratories Industrial Technology Research Institute Hsinchu Taiwan

ISBN: (纸本)9783030530358

Most vision-based pedestrian detection systems adopted deep learning approaches with the framework of convolutional neural networks (CNNs) to reach the state-of-the-art detection accuracy. As CNN-based approaches are computationally intensive, the deployment of those systems to a resource-limited edge device is a challenging task, especially for a real-time application such as intelligent vehicles. In this study, we proposed a lightweight high-performance edge computing solution to achieve rapid and accurate performance in pedestrian detection. Experimental results showed that the proposed framework can effectively reduce the miss rate of the YOLO-tiny detection model from 48.8% to 26.2% while achieving an inference speed of 31 frames per second (FPS) tested on the Caltech pedestrian dataset. © The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2021.

关键词： Edge computing

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Hybrid position, posture, force and moment control with impedance characteristics for robot manipulators

Hybrid position, posture, force and moment control with impe...

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2011 IEEE International Conference on mechatronics and automation, ICMA 2011

作者： Yao, Yu Huang, Qingjiu Peng, Yan Oiwa, Taishi Institute of Robotic Science and Engineering Nanjing University of Technology 5 Xinmofan Rd Nanjing 210009 China Department of Mechanical and Control Engineering Tokyo Institute of Technology 2-12-1-I3-11 Ookayama Meguro-ku Tokyo 152-8552 Japan School of Mechatronics Engineering and Automation Shanghai University Shanghai 200072 China

ISBN: (纸本)9781424481149

There are more and more needs for surface contact works, such as polish, grinding, paint, inspection, etc., with robot manipulators in recent years. In this paper, to achieve high-speed and high-precision surface contact work by robot manipulator, we propose a separation method of posture components to solve the problem of the rotation order, and a method of introducing the impedance characteristics to hybrid position, posture, force and moment control to eliminate the interference between free space and constrained space. Furthermore, the effectiveness of our control method for surface contact work was verified by the dynamic simulation of character-erasing motion on the white board of 6-DOF robot manipulator. © 2011 IEEE.

关键词： Robot applications

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Optimal Tracking Performance of MIMO Networked control Systems with Communication Constraints

Optimal Tracking Performance of MIMO Networked Control Syste...

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第26届中国控制与决策会议

作者： Chao-Yang Chen Ming Chi Zhi-Hong Guan Xian-He Zhang Xi-Sheng Zhan College of Automation Huazhong University of Science and Technology College of Mechatronics and Control Engineering Hubei Normal University

In this paper, we study the optimal tracking performance problem of continuous-time linear multi-input multi-output(MIMO) networked control systems. The unstable and non-minimum phase systems is considered. The output feedback path is subject to quantization noise, additive white Gaussian noise and bandwidth constraints, and encoding and decoding are considered. The reference input is a random signal. The performance is measured through the tracking error energy, and two-parameter controller is considered. The explicit expression of the tracking performance has been obtained. The results show that the unstable poles and non-minimum phase zeros of the plant, the channel noise,bandwidth, quantization noise and coder will aggravate the optimal tracking performance.

关键词： Tracking Performance,Channel Noise,Quantization Noise,Bandwidth Constraint

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Measurement-Based control for Minimizing Energy Functions in Quantum Systems

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IFAC-PapersOnLine 2023年第2期56卷 5171-5178页

作者： Henrik Glavind Clausen Salahuddin Abdul Rahman Özkan Karabacak Rafal Wisniewski Section for Automation and Control Department of Electronic Systems Aalborg University Aalborg Denmark Department of Mechatronics Engineering Kadir Has University Istanbul Turkey

In variational quantum algorithms (VQAs), the most common objective is to find the minimum energy eigenstate of a given energy Hamiltonian. In this paper, we consider the general problem of finding a sufficient control Hamiltonian structure that, under a given feedback control law, ensures convergence to the minimum energy eigenstate of a given energy function. By including quantum non-demolition (QND) measurements in the loop, convergence to a pure state can be ensured from an arbitrary mixed initial state. Based on existing results on strict control Lyapunov functions, we formulate a semidefinite optimization problem, whose solution defines a non-unique control Hamiltonian, which is sufficient to ensure almost sure convergence to the minimum energy eigenstate under the given feedback law and the action of QND measurements. A numerical example is provided to showcase the proposed methodology.

关键词： Lyapunov control quantum non-demolition measurements semidefinite programming variational quantum algorithms

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Hybrid powertrain concept evaluation using optimization

Hybrid powertrain concept evaluation using optimization

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25th World Battery, Hybrid and Fuel Cell Electric Vehicle Symposium and Exhibition: Sustainable Mobility Revolution, EVS 2010

作者： Murgovski, Nikolce Fredriksson, Jonas Sjöberg, Jonas Norén, Bengt Department of Signals and Systems Division of Automatic Control Automation and Mechatronics Chalmers University of Technology Gothenburge Sweden Complete Powertrain Powertrain Engineering Volvo Cars Corporation. Dept 97520-PV3B-Gothenburge Sweden

This paper describes automatic evaluation of series-parallel (combined) powertrain models using optimization. The novelty with the approach is the possibility to work with non-transparent industrial vehicle models, hidden for intellectual property reasons. The contribution extends the functionality of a recently developed tool for parallel hybrids, with the ability to operate on combined powertrains. Given the user inputs, which include dynamic vehicle model and driving cycle, the tool first produces a simplified powertrain model in the form of static maps, before dynamic programming is used to find an optimal torque split that minimizes fuel consumption. The main use of the tool is to evaluate the potential of a powertrain configuration. The paper contains an illustration of the tool operation on a non-transparent industrial vehicle model. The only requirement on the model is to provide access to some general variables and that it has a torque split that can be fully controlled.

关键词： Hybrid vehicles

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On Instrumental Variable-Based Method for Identification of Permanent Magnet Synchronous Machine by Noisy Data 4

On Instrumental Variable-Based Method for Identification of ...

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4th International Conference on control Systems, Mathematical Modeling, automation and Energy Efficiency, SUMMA 2022

作者： Ivanov, Dmitriy V Sandler, Ilya L Yakoub, Zaineb Antonova, Victoria V Terekhin, Michail A Bezyazykova, Lubov A Samara State University of Transport Dept. Mechatronics Samara Russia Dept. Automation and Control in Technical Systems Samara State Technical University Samara Russia National Engineering School of Gabes University of Gabes Gabes Tunisia

ISBN: (数字)9781665456593

ISBN: (纸本)9781665456593

The identification of parameters of the permanent magnet synchronous machine (PMSM) is considered. The paper uses a discrete model of the permanent magnet synchronous machine. The proposed algorithm makes it possible to consider the errors in measurements of current, voltage, and electrical angular speed. Extended instrument variables are used to identify parameters. To solve the overdetermined system, total least squares are used. This makes it possible to improve the accuracy of estimates of extended instrumental variables on a finite sample. The simulation results confirmed the high accuracy of the resulting estimates. © 2022 IEEE.

关键词： Permanent magnets

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