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Feasibility study of renewable e-methanol production:A substitution pathway from blue to green

iEnergy 2024年第2期3卷 108-114页

作者： Peiyang Li Jin Lin Zhipeng Yu Yingtian Chi Kai Zhao State Key Laboratory of Power System Operation and Control Department of Electrical EngineeringTsinghua UniversityBeijing 100087China Tsinghua-Sichuan Energy Internet Research Institute Chengdu 610213China Beijing Representative Office of Methanol Institute Beijing 100020China

Producing renewable e-methanol from e-hydrogen and diverse carbon sources is an essential way for clean methanol *** this,the technical and economic feasibility of different e-methanols has yet to be thoroughly compared,leaving the most promising pathway to achieve commercialization yet *** paper reports a preliminary analysis of the lifecycle greenhouse gas(GHG)emissions and costs of four renewable e-methanols with different carbon sources:bio-carbon,direct air capture(DAC),fossil fuel carbon capture(FFCC),and *** results indicate that renewable e-methanol costs(4167−10250 CNY/tonne)2−4 times the market rate of grey ***,with the carbon tax and the projected decline in e-H2 costs,blue e-methanol may initially replace diesel in inland navigation,followed by a shift from heavy fuel oil(HFO)to green e-methanol in ocean ***,the e-H2 cost and the availability of green carbon are vital factors affecting cost-effectiveness.A reduction in e-H2 cost from 2.1 CNY/Nm3 to 1.1 CNY/Nm3 resulting from a transition from an annual to a daily scheduling period,could lower e-methanol costs by 1200 to 2100 *** paper also provides an in-depth discussion on the challenges and opportunities associated with the various green carbon sources.

关键词： Renewable energy e-methanol e-hydrogen green carbon source chemical process flexibility

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25%-Efficiency flexible perovskite solar cells via controllable growth of SnO_(2)

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iEnergy 2024年第1期3卷 39-45页

作者： Ningyu Ren Liguo Tan Minghao Li Junjie Zhou Yiran Ye Boxin Jiao Liming Ding Chenyi Yi State Key Laboratory of Power System Operation and Control Department of Electrical EngineeringTsinghua UniversityBeijing 100084China Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijing 100190China

High power conversion efficiency(PCE)flexible perovskite solar cells(FPSCs)are highly desired power sources for aerospace crafts and flexible ***,their PCEs still lag far behind their rigid ***,we report a high PCE FPSC by controllable growth of a SnO_(2)electron transport layer through constant pH chemical bath deposition(CBD).The application of SnSO_(4)as tin source enables us to perform CBD without strong acid,which in turn makes it applicable to acid-sensitive flexible indium tin ***,a mild and controllable growth environment leads to uniform particle growth and dense SnO_(2)deposition with full coverage and reproducibility,resulting in a record PCE of up to 25.09%(certified 24.90%)for FPSCs to *** as-fabricated FPSCs exhibited high durability,maintaining over 90% of their initial PCE after 10000 bending cycles.

关键词： Flexible perovskite solar cells chemical bath deposition SnO_(2) electron transport layer

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Feedback-Based Quantum control of Nuclei Spin in Ensembles

Feedback-Based Quantum Control of Nuclei Spin in Ensembles

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Indian control Conference (ICC)

作者： Vishesh Kaushik Navin Khaneja System and Control Engineering department IIT Bombay Powai India

ISBN: (数字)9798331517212

ISBN: (纸本)9798331517229

In this paper, we present a feedback-based framework for controlling the evolution of quantum spin states of nuclei within an ensemble. This approach allows for the selective excitation of nuclear spin states within specific pass bands of Larmor frequencies while leaving the nuclei outside the pass bands undisturbed. The control input sequence is designed in simulation and implemented using radio frequency pulses in the real system.

关键词： Radio frequency Water Filters control systems Hilbert space

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The Deployment of Microservice at Edge based on MQTT for Low Latency 22

The Deployment of Microservice at Edge based on MQTT for Low...

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22nd IEEE International Conference on Industrial Informatics, INDIN 2024

作者： Han, Mengqi Yang, Bo Liu, Yuxiang Liu, Sicheng Liu, Qi Department of Automation Shanghai Jiao Tong University Shanghai China Key Laboratory of System Control and Information Processing Ministry of Education of China Shanghai China Shanghai Engineering Research Center of Intelligent Control and Management Shanghai China

ISBN: (纸本)9798331527471

With the rapid development of smart manufacturing, existing microservice deployment strategies based on the TCP protocol tend to encounter problems such as network latency, excessive header length, and port exhaustion in high concurrency scenarios. MQTT Broker can relay data between microservices, effectively alleviating these issues. However, the communication overhead of the Broker is significantly related to its deployment and the dependency of microservices. An appropriate deployment solution can significantly improve service quality. To address this issue, this paper models the deployment of MQTT Broker and microservices as a graph with cycles. By introducing auxiliary variables, the NP-hard problem is transformed into a mixed-integer quadratic programming problem, improving problem-solving efficiency and optimizing the microservices deployment strategy to reduce communication overhead. Meanwhile, a real-world heterogeneous cluster was constructed to experiment on fault detection applications, elaborating on the superiority of the microservice deployment strategy designed in this paper. Experimental results demonstrate that our approach reduces communication overhead by 20% in comparison to both the greedy strategy and the K8s strategy. This suggests that achieving an optimal balance between the number of Brokers and microservices is vital for ensuring efficient resource utilization and maintaining low communication latency, particularly as the scale of services expands. © 2024 IEEE.

关键词： Smart manufacturing

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Online Multi-Object Tracking Under Moving Unmanned Aerial Vehicle Platform Based on Object Detection and Feature Extraction Network

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Journal of Shanghai Jiaotong university(Science) 2024年第3期29卷 388-399页

作者：刘增敏王申涛姚莉秀蔡云泽 Department of Automation Shanghai Jiao Tong UniversityShanghai 200240China Key Laboratory of System Control and Information Processing of Ministry of Education Shanghai 200240China Shanghai Engineering Research Center of Intelligent Control and Management Shanghai 200240China Key Laboratory of Marine Intelligent Equipment and System of Ministry of Education Shanghai Jiao Tong UniversityShanghai 200240China JD Business Growth Department Beijing 100176China Institute of Marine Equipment Shanghai Jiao Tong UniversityShanghai 200240China

In order to solve the problem of small object size and low detection accuracy under the unmanned aerial vehicle(UAV)platform,the object detection algorithm based on deep aggregation network and high-resolution fusion module is ***,a joint network of object detection and feature extraction is studied to construct a real-time multi-object tracking *** the problem of object association failure caused by UAV movement,image registration is applied to multi-object tracking and a camera motion discrimination model is proposed to improve the speed of the multi-object tracking *** simulation results show that the algorithm proposed in this study can improve the accuracy of multi-object tracking under the UAV platform,and effectively solve the problem of association failure caused by UAV movement.

关键词： moving unmanned aerial vehicle(UAV)platform small object feature extraction image registration multi-object tracking

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Research on Droop control of Power Conversion system Based on Dynamic Reconfigurable Battery system 20

Research on Droop Control of Power Conversion System Based o...

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20th International Conference on AC and DC Power Transmission 2024, ACDC 2024

作者： Zhu, Haiyan Wang, Jinyu Luo, Longzhou Ci, Song Zhou, Yanglin School of Electrical Engineering Xi'an Jiaotong University Xi'an China Department of Electrical Engineering Tsinghua University Beijing China State Key Laboratory of Power System Operation and Control Tsinghua University Beijing China

ISBN: (纸本)9781837242672

The dynamic reconfigurable battery system (DRBS) is very promising because it can overcome the "barrel effect" of conventional battery storage by flexibly connecting battery modules through process control. However, there is still a lack of research on the cooperation between DRBS and the power conversion system (PCS). In this paper, a reconfiguration strategy is designed based on a matrix dynamic reconfigurable battery network, considering SOC balancing and PCS output power demand. A droop control strategy is adopted to control the corresponding PCS. Finally, a converter droop control model based on a DRBS with the proposed control algorithm is built and its accuracy and effectiveness are carefully verified by detailed simulation results in MATLAB/Simulink. © The Institution of engineering & Technology 2024.

关键词： Balancing Strategy Droop control Dynamic Reconfigurable Battery system(DRBS) Power Conversion system (PCS)

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A Novel Power Distribution Strategy for Battery Storage Units in a Large-scale Station to Improve system Operating Performance 20

A Novel Power Distribution Strategy for Battery Storage Unit...

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20th International Conference on AC and DC Power Transmission 2024, ACDC 2024

作者： Han, Chenhui Wang, Jinyu Luo, Longzhou Ci, Song Zhou, Yanglin School of Electrical Engineering Xi'an Jiaotong University Xi'an China Department of Electrical Engineering Tsinghua University Beijing China State Key Laboratory of Power System Operation and Control Tsinghua University Beijing China

ISBN: (纸本)9781837242672

Large-scale battery energy storage systems have the advantages of rapid response speed and high regulation precision. Their widespread application contributes to the stable operation of power grids. Nowadays, the design of an optimal power distribution strategy for the storage units that maximizes the benefits of energy storage stations is a hot spot of research. This paper presents a comprehensive power distribution model, which is suitable for energy storage stations. The model incorporates multiple objective factors such as the output power, the depth of discharge (DOD), and the uniformity of the State of Charge (SOC). One of the advantages of the designed model is its capability to optimize the longevity of the energy storage systems by managing the SOC convergence effectively and minimizing life loss through judicious power allocation. This approach improves the reliability and efficiency of energy storage system operations. Additionally, the model integrates temperature regulation costs, further enhancing its applicability and relevance to practical scenarios. © The Institution of engineering & Technology 2024.

关键词： Battery storage

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Angle Tracking control Strategy for Steering-by-Wire system with Dual Steering Actuator Motors 41

Angle Tracking Control Strategy for Steering-by-Wire System ...

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第41届中国控制会议

作者： Xuhang Zhang Linhui Zhao Guohuang Ji Zhiyuan Liu Department of Control Science and Engineering Harbin Institute of Technology Intelligent Power System Co. Ltd.

ISBN: (数字)9789887581536

ISBN: (纸本)9781665482561

Steering-by-wire(SBW) is a key technology to realize angle tracking for autonomous vehicles,and it directly affects the performance of active *** reliability performance of SBW system can be greatly improved by adopting dual motor steering ***,the dual-motor SBW vehicle often loses its stability due to the external interference,and the asynchronous response between the dual steering actuator motors will further deteriorate the stability of the *** purpose of this paper is to establish a method of angle tracking for the dual-motor steering by wire ***,the model of SB W was established and its validity was proofed by comparing the steering performance between the SBW and the traditional mechanical steering ***,by considering parameters uncertainties and difference of wheel load torque of the dual steering actuator motors,the steering angle tracking control strategy of dual motor SBW was *** paper established methods for the synchronization control of dual motor and closed-loop control of angle *** the angle synchronization error was decreased by current compensation *** validation results show that the proposed control strategy can decrease the synchronization error of dual motor and ensure the reliability of angle tracking.

关键词： Steering-by-wire Dual-motor Angle tracking Synchronization control

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Inter-Agent Collision Avoidance for Decentralized 3D Fixed-Wing Flocking 10

Inter-Agent Collision Avoidance for Decentralized 3D Fixed-W...

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10th Indian control Conference, ICC 2024

作者： Gupta, Archit Tak, Ajay Kumar, Shashi Ranjan Vachhani, Leena The Department of Electrical Engineering Indian Institute of Technology Bombay Powai Mumbai400076 India The Department of Aerospace Engineering Indian Institute of Technology Bombay Powai Mumbai400076 India The System & Control Engineering Indian Institute of Technology Bombay Powai Mumbai400076 India

ISBN: (纸本)9798331517212

UAV swarms have gained prominence due to their reliability, agility, and cooperative capabilities. This paper addresses the challenges of devising algorithms for fixed-wing UAVs posed by non-holonomic kinematics and actuator constraints. While existing works explored optimal control, artificial potential fields, and biologically inspired methods, these often overlook 3-dimensional non-holonomic constraints and actuator saturation. This work contributes to a decentralized 3D fixed-wing flocking algorithm that ensures inter-agent collision avoidance and effective flock formation. Moreover, using a leader-follower model, the agents track a virtual leader while communicating only with neighbors, keeping the motion constraints of fixed-wings. We establish safe initial conditions to guarantee collision avoidance. Numerical simulations validate the proposed algorithm’s robustness, demonstrating its effectiveness in solving the flocking problem for non-holonomic fixed-wing agents and advancing UAV swarm coordination. © 2024 IEEE.

关键词： Unmanned aerial vehicles (UAV)

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Network system capacity:Towards integrating sensing,communication and control

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National Science Open 2024年第1期3卷 147-149页

作者： Xinping Guan Department of Automation Shanghai Jiao Tong UniversityShanghai 200240China Key Laboratory of System Control and Information Processing Ministry of Education of ChinaShanghai 200240China Shanghai Engineering Research Center of Intelligent Control and Management Shanghai 200240China

Network systems refer to a new generation of systems with integrated information perception,transmission and utilization capabilities through communication networks,which are adopted to achieve desirable objectives under physical and information related uncertainties and/or adversary *** the information-rich era[1,2],one of the fundamental issues is to exploit the limit of feedback control on dissipating such uncertainties in the scenarios of networked sensing and communication[3].

关键词： communication integrating system

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