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IEEE Conference on Decision and control

作者： Yuyue Yan Maojiao Ye Kazumune Hashimoto Yuhu Wu He Kong Graduate School of Engineering Osaka University Suita Japan School of Automation Nanjing University of Science and Technology Nanjing China School of Control Science and Engineering Dalian University of Technology Dalian China School of System Design and Intelligent Manufacturing Southern University of Science and Technology Shenzhen China

ISBN: (数字)9798350316339

ISBN: (纸本)9798350316346

In this paper, an incentive mechanism is developed to maximize the weighted social welfare for pseudo-gradient-based noncooperative dynamical systems. In the proposed approach, the system manager manipulates agents’ decision making by collecting taxes and giving subsidies to the agents under a sustainable budget constraint using the partial knowledge related to the payoff structure from the agents except a secret agent. To avoid direct acquisition of the payoff information of all the agents, our idea is to shift the stationary points of those partial agents and hence indirectly move the Nash equilibrium of the entire system. Sufficient conditions are derived under which the Nash equilibrium is shifted towards the target state achieving Pareto efficiency under the incentive mechanism without knowing any payoff information of the secret agent. Some convergent conditions to ensure agents’ state converge to the target state under a sustainable budget are provided for the given initial state. We present a numerical example to illustrate the efficacy of our results.

关键词： Sufficient conditions Decision making Finance Nash equilibrium Security Dynamical systems Numerical stability

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Output Feedback Decoupling control of Active Load-Sensitive Hydraulic Systems with Extended State Observer 9

Output Feedback Decoupling Control of Active Load-Sensitive ...

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9th International Conference on Fluid Power and Mechatronics, FPM 2023

作者： Qiu, Zhongyi Liu, Xiaochao Wang, Zhenyu Shang, Yaoxing Jiao, Zongxia School of Automation Science and Electrical Engineering Beihang University Beijing China Research Institute for Frontier Science Beihang University Beijing China Ningbo Institute of Technology Beihang University Ningbo China Beihang University Science and Technology on Aircraft Control Laboratory Beijing China Tianmushan Laboratory Xixi Octagon City Yuhang District China

ISBN: (纸本)9798350304947

When the valve-controlled fixed-displacement system works in small load conditions, the excess pressure can only be throttled at the servo valve, resulting in serious hydraulic energy waste. This paper proposes an active load-sensitive hydraulic motor system, which can actively change the motor displacement to adapt to different external load requirements, reduce the system energy loss at the servo valve, improve the efficiency of the system, and achieve a more energy-saving effect. In addition, the change of displacement causes the situation that the system is influenced by two subsystems together, which poses a new challenge to the control of the system. In this paper, we propose a load-sensitive output feedback decoupling control (OFDC) strategy. The active disturbance rejection adaptive control (ADRAC) and extended state observer (ESO) are used in the main motor loop to ensure high servo accuracy of the system, and the pressure feedback control is used in the load-sensitive loop to adjust the motor displacement according to the load size and ensure high energy utilization efficiency of the system. The results show that the proposed system has both better energy utilization characteristics and satisfactory servo control accuracy. The proposed scheme improves control accuracy by about 90% and system efficiency by about 3 times. © 2023 IEEE.

关键词： Energy utilization

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Research of Fault-Tolerant control Strategy for Open-End Winding PMSM Under Open-Phase Fault

Research of Fault-Tolerant Control Strategy for Open-End Win...

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PELS Students and Young Professionals Symposium (SYPS), IEEE

作者： Yuehai Bao Xiaokang Zhang Junjie Zhao Bowen Li Changyi Xu School of Mechatronic Engineering and Automation Shanghai University Shanghai China School of Control Science and Technology Dalian University of Technology Liaoning China

With its unique winding configuration, the open-end winding permanent magnet synchronous motor (OW-PMSM) inherits a series of advantages of the permanent magnet synchronous motor (PMSM) and has good fault tolerance with dual inverter drive. This paper proposes a fault-tolerant control strategy for open-phase faults in three-phase PMSM powered by a common DC bus. This paper studies the fault-tolerant operation of OW-PMSM under open-phase faults, addressing the most common failure of power devices in electric drive systems. This paper presents a simulation based on dual-inverter Sinusoidal Pulse Width Modulation (SPWM) under open-phase fault. A proportional resonance controller is employed to suppress the zero-sequence current in the system after the fault, weaken the harmonics produced by the third-order zero-sequence current in the PMSM system, thereby reducing electromagnetic torque ripple and improving the control performance of the system. The simulation results demonstrate the effectiveness of the proposed approach.

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Asynchronous State Estimator Design for Markov Switched Systems with Incomplete Probabilities and Redundant Channels

Asynchronous State Estimator Design for Markov Switched Syst...

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第42届中国控制会议

作者： Haiyang Chen Fangzheng Gao Xueyi Mao School of Control Science and Engineering Tiangong University School of Automation Nanjing Institute of Technology Publicity Department Nanjing Communications Institute of Technology

This paper is concerned about the H∞ asynchronous state estimator design for Markov switched systems(MSSs)with incomplete transition probabilities and redundant channels.A hidden Markov chain(HMC) is introduced to characterize the asynchronous degree between the state estimator mode and the system *** an asynchronous full-order state estimator is devised for the ***,by Lyapunov functional and stochastic analysis,new criteria are derived such that the augmented system consisting of the target system and state estimator is H∞ stochastically finite-time *** that,with matrix decoupling technique,a design algorithm is obtained in form of linear matrix inequalities(LMIs).Finally,the practical one-link robotic manipulator is utilized to validate the developed results.

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The Stability with Time Delays in Cacc System and Reconstitution Information of Vehiclescompensating Delays Based on Bi-Lstm

SSRN

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SSRN 2024年

作者： Zhang, Chenmin Liu, Yonggui Li, Zeming Key Laboratory of Autonomous Systems and Network Control Ministry of Education School of Automation Science and Engineering South China University of Technology Guangzhou510641 China

The communication delays have an impact on Cooperative Adaptive Cruise control (CACC) of vehicle platoon systems, since thepreceding and following vehicle information is utilized through vehicular Ad Hoc networks. In this paper a three-order vehicleplatoon system using distributed control protocols with communication delays is designed using leading and neighboring vehicleinformation. The sufficient necessary conditions for local stability and string stability are derived based on the Hurwitz stabilitycriterion and the frequency domain method without time delays, in which the thresholds of the controller gains and their relationshipis revealed. For the vehicle platoon systems with time delays, the upper bounds of the time delays satisfying the local stability andstring stability are given based on the method of Laplace transform. Aiming to the communication delays varied, which havegreatly influence on the control performance of vehicle systems, the Bidirectional Long Short Term Memory (Bi-LSTM) model isproposed to predict the acceleration of the leading vehicle to reconstitution for the communication delays, and the algorithm hashigher accuracy and relevance by comparing the acceleration prediction method based on LSTM and the KF method. Based on thesimulation method of compensating communication delay based on Bi-LSTM model, it is obtained that the CACC vehicle systemcan still maintain local stability and string stability under infinite time delay. © 2024, The Authors. All rights reserved.

关键词： Time delay

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Research on Cascade control Method for Hydraulic Secondary Regulating Transmission System 9

Research on Cascade Control Method for Hydraulic Secondary R...

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9th International Conference on Fluid Power and Mechatronics, FPM 2023

作者： Wang, Zhenyu Liu, Xiaochao Qiu, Zhongyi Jiao, Zongxia School of Automation Science and Electrical Engineering Beihang University Beijing China Ningbo Institute of Technology Beihang University Ningbo China Tianmushan Laboratory Xixi Octagon City Hangzhou China Beihang University Science and Technology on Aircraft Control Laboratory Beijing China Research Institute for Frontier Science Beihang University Beijing China

ISBN: (纸本)9798350304947

The hydraulic secondary regulating system is a common hydraulic energy-saving system that can recover energy from the load in the system. In this paper, a hydraulic system model based on the principle of secondary regulating is established, and a double closed loop cascade control system is formed by the feedback of the rotation displacement and the swashplate angle of the secondary component. Moreover, a cascade control architecture is proposed to solve the problem of parameter explosion in nonlinear control algorithm design for high-order systems. The nonlinear Adaptive Robust control (ARC) algorithm is used to resistance the disturbance of transient alternating load in the system, improving the adaptability to forward and reverse loads, and improving energy efficiency. Compared with traditional secondary regulating system position closed-loop control, it has stronger anti-interference ability, higher control accuracy, and higher efficiency. © 2023 IEEE.

关键词： Robust control

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An Improved Data-Driven Adaptive Dynamic Programming Approach for Cooperative Games 42

An Improved Data-Driven Adaptive Dynamic Programming Approac...

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42nd Chinese control Conference, CCC 2023

作者： Wang, Yi-Min Sun, Tao Ma, Song He, Lei-Ming Dalian University of Technology Key Lab. of Intelligent Control and Optimization for Industrial Equipment of Ministry of Education Dalian116024 China Tsinghua University Department of Automation Beijing100084 China School of Control Science and Engineering Dalian University of Technology Dalian116024 China Chinese Aeronautical Establishment Beijing100029 China

ISBN: (纸本)9789887581543

In this paper, we consider a continuous system cooperative dynamic game problem with two players. Through the introduction of dynamic programming concept, a Hamilton-jacobi-Belman equation for two players is designed. By introducing detection noises and using the basis function approximation method, a data-driven adaptive dynamic programming method is proposed and an iterative equation is obtained. Then, by introducing two detection noises and using the basis function approximation method, an iterative equation is obtained. It is note-worthy that we can obtain the Nash equilibrium solution of the cooperative game. Finally, a numerical simulation example is given to demonstrate the effectiveness of the proposed adaptive dynamic programming approach. © 2023 Technical Committee on control Theory, Chinese Association of automation.

关键词： Dynamic programming

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A Proposal Of An Iterative Learning control Method For Simulating A Flyback Converter Using PSCAD

A Proposal Of An Iterative Learning Control Method For Simul...

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Green Buildings (ATiGB), Applying New Technology in

作者： Trung Thanh Cao Cuong Trinh Van Hung Pham Van Minh Quang Nguyen Anh Hoang School of Electrical and Electronic Engineering Hanoi University of Science and Technology Hanoi Vietnam Department of Automation and Control Ha Noi University of Industry Hanoi Vietnam

ISBN: (数字)9798331505042

ISBN: (纸本)9798331505059

DC-DC converters are essential components in power supply applications, portable electronics, renewable energy systems, and various other industries. An accurate system model is crucial for the development of the controller for a DC-DC converter. This research study focused on the development of an iterative learning control that operates without requiring the system model. The study employs PSCAD simulation software to simulate and analyze the effectiveness of an iterative learning control and a sliding mode controller for flyback converter. Detailed simulation results and comparisons between the two methodologies will be presented.

关键词： Industries Renewable energy sources Buck converters Power supplies Simulation Software Proposals PSCAD Voltage control Iterative learning control

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A third-party platoon coordination service: Pricing under government subsidies

A third-party platoon coordination service: Pricing under go...

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作者： Bai, Ting Johansson, Alexander Li, Shaoyuan Johansson, Karl Henrik Mårtensson, Jonas School of Electrical Engineering and Computer Science KTH Royal Institute of Technology Stockholm Sweden KTH Royal Institute of Technology Stockholm Sweden Department of Automation Shanghai Jiao Tong University Shanghai China Key Laboratory of System Control and Information Processing Shanghai Jiao Tong University Shanghai China Digital Futures Stockholm Sweden

This paper models a platooning system consisting of trucks and a third-party service provider (TPSP), which performs platoon coordination, distributes the platooning profit in platoons, and charges trucks in exchange for the services. Government subsidies used to incentivize platooning are also considered. We propose a pricing rule for the TPSP, which keeps part of the platooning profit including the subsidy each time a platoon is formed. In addition, a platoon coordination solution based on the distributed model predictive control (MPC) is proposed, in which the pricing rule under government subsidies is integrated. We perform a realistic simulation over the Swedish road network to evaluate the impact of the pricing rule and subsidies on the achieved profits and fuel savings. Our results show that subsidies are an effective mean to boost fuel savings from platooning. Moreover, the simulation study indicates that high pricing corresponds to a low platooning rate of the system, as trucks' incentives for platooning decrease. © 2023 The Authors. Asian Journal of control published by John Wiley & Sons Australia, Ltd on behalf of Chinese Automatic control Society.

关键词： Trucks

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Domain Generalized Solar Cell Defect Segmentation Based on Shape-Aware and Multi-View Meta-Learning 42

Domain Generalized Solar Cell Defect Segmentation Based on S...

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42nd Chinese control Conference, CCC 2023

作者： Liu, Kun Yang, Ying Mao, Jingkun Liu, Weipeng School of Artificial Intelligence and Data Science Hebei University of Technology Tianjin300130 China Tianjin University of Technology Department of Automation Tianjin300384 China Control Engineering Technology Innovation Center of Hebei Province Hebei University of Technology Tianjin300401 China

ISBN: (纸本)9789887581543

Various defects are inevitably generated in the manufacturing process of solar cells. Deep learning-based methods for defect segmentation under closed situation have achieved remarkable progress. Due to the difference of imaging condition and camera parameter under different production line, there are large differences in brightness distribution of solar cell images. The model trained under closed situation cannot achieve good performance in opened situation such as multi-production lines. In this paper, a new shape-aware and multi-view meta-learning scheme is proposed to improve the model generalization performance for single-domain solar cell defect segmentation. The scheme roots in gradient-based meta-learning. Multi-brightness view information is yielded from the generated augmented images, and explicitly simulating domain shift with virtual meta-train and meta-test during training to mitigate overfitting in single-source domain train and unstable prediction. Importantly, considering tiny and faint solar cell defects are not easily identified under different image brightness conditions, shape edge constraint loss is proposed to encourage shape compactness and shape smoothness of segmentations. Experimental results show that the proposed method has high segmentation accuracy, which outperforms the state-of-the-art methods. © 2023 Technical Committee on control Theory, Chinese Association of automation.

关键词： Solar cells

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