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IEEE International Conference on Robotics and Automation (ICRA)

作者： Xingxing Zuo Nathaniel Merrill Wei Li Yong Liu Marc Pollefeys Guoquan Huang ETH Zürich Institute of Cyber-System and Control Zhejiang University Robot Perception and Navigation Group University of Delaware Inceptio Technology Shanghi China Microsoft Mixed Reality and Artificial Intelligence Lab Zürich

In this work, we present a lightweight, tightly-coupled deep depth network and visual-inertial odometry (VIO) system, which can provide accurate state estimates and dense depth maps of the immediate surroundings. Leveraging the proposed lightweight Conditional Variational Autoencoder (CVAE) for depth inference and encoding, we provide the network with previously marginalized sparse features from VIO to increase the accuracy of initial depth prediction and generalization capability. The compact representation of dense depth, termed depth code, can be updated jointly with navigation states in a sliding window estimator in order to provide the dense local scene geometry. We additionally propose a novel method to obtain the CVAE’s Jacobian which is shown to be more than an order of magnitude faster than previous works, and we additionally leverage First-Estimate Jacobian (FEJ) to avoid recalculation. As opposed to previous works that rely on completely dense residuals, we propose to only provide sparse measurements to update the depth code and show through careful experimentation that our choice of sparse measurements and FEJs can still significantly improve the estimated depth maps. Our full system also exhibits state-of-the-art pose estimation accuracy, and we show that it can run in real-time with single-thread execution while utilizing GPU acceleration only for the network and code Jacobian.

关键词： Jacobian matrices Geometry Codes Automation Navigation Conferences Pose estimation

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system configurations for shuttle kiln waste heat recovery: comparing and combining a packed-bed thermal storage system and a heat exchanger

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Applied Thermal Engineering 2025年 278卷

作者： Georgousis, Nikolaos Diriken, Jan Speetjens, Michel Rindt, Camilo Flemish Institute for Technological Research (VITO) Water and Energy Transitions Unit Analysis and Control of Energy System Operation Group Boeretang 200 Mol 2400 Belgium EnergyVille Thor Park 8300 Genk 3600 Belgium Eindhoven University of Technology Mechanical Engineering Energy Technology Group Groene Loper 3 Eindhoven 5612AE Netherlands

Shuttle kilns (SKs) are industrial furnace-type equipment used in sanitaryware production, and commonly consume natural gas. The resulting waste heat (WH) is often rejected into the environment. This study compares three distinct system configurations for waste heat recovery to preheat the combustion air, which are: a standalone heat exchanger (HEX), a packed-bed thermal storage (PBTS) system and a combination of both. All three configurations are evaluated based on the amount of the recovered WH per SK cycle, the equipment's payback period (PBP) and the levelized cost of heat (LCOH). For analyzing the PBTS system, a 1-dimensional numerical model, validated with experimental data from literature, is used. In the first configuration, a HEX can recover up to 8.54 GJ of WH, with a PBP and LCOH of 0.93 years and 0.0170 €/kWhth. In the second configuration, a PBTS system, sized so that it can be fully discharged by the combustion air, can recover around 15 GJ of WH, achieving a PBP and LCOH of 0.17–0.32 years and 0.003–0.006 €/kWhth, respectively. The third configuration aims at maximizing the recovered WH, which reached 15.8 GJ. The accompanying PBP and LCOH were 0.81 years and 0.0148 €/kWhth. Additionally, the reduction in annual CO2 emissions for the three configurations is up to 16.6 % (HEX), 29.3 % (PBTS) and 30.7–30.8 % (combination). This study highlights that an optimally sized PBTS system can outperform a HEX system, recovering 28 % of the SK's total heat input and achieving lower PBP and LCOH values.

关键词： Application in a ceramic shuttle kiln Natural gas consumption reduction Packed-bed thermal storage Sensible heat storage Thermocline zone velocity Waste heat recovery for industry

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Hybrid sliding mode control application in mathematical model of electronics throttle valve

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AIP Conference Proceedings 2024年第1期2998卷

作者： Maziyah Mat-Noh M. S. Bakar Robotics Intelligent System & Control Engineering (RISC) Research Group Faculty of Electrical and Electronics Engineering Technology University Malaysia Pahang (UMP) 26600 Pekan Pahang Malaysia Sustainable Energy & Power Electronics (SUPER) Research Group Faculty of Electrical and Electronics Engineering Technology University Malaysia Pahang (UMP) 26600 Pekan Pahang Malaysia

control the air flow in the engine cylinder is very important to maintain the performance of the vehicle. This performance is maintained by a device called electronic throttle (ET) that lower the emission of exhaust meeting the emission norms. The control of ET is quite challenge exercise due its multiple nonlinearities such as transmission friction, spring set (limp-home), backflash of the gear as well as external. The simulation of tracking performance ET openings angle using hybrid sliding mode control (SMC)is presented in this paper. The integration of two control algorithms is proposed using integral SMC and super twisting SMC that is applied on mathematical model of ET. The stability of the controller is examine using Lyapunov theorem. Theoretically, Lyapunov theorem has proven that the proposed control law satisfies sufficient condition of stability. The effectiveness of the proposed controller has been evaluated against integral SMC and super twisting SMC. The results of the simulation have demonstrated the controller proposed in work has enhanced the transient response, decreased steady-state error, and removed chattering effects in control input as well as sliding surface.

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Optimal Scheduling Strategy of a Regional Integrated Energy system Considering Renewable Energy Uncertainty and Heat Network Transmission Characteristics

SSRN

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SSRN 2022年

作者： Chen, Haipeng Gao, Lin Zhang, Yongling Zhao, Chang Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology Ministry of Education Northeast Electric Power University Jilin132012 China Department of Electrical Engineering Northeast Electric Power University Jilin132012 China Gongqing Institute of Science and Technology Gongqing City 332020 China National New Energy Group Jilin Jiangnan Thermal Power Limited Company Jilin132012 China

In order to overcome the curtailment of wind energy caused by "power determined by heat" of combined heat and power units, this study proposes an integrated demand response strategy and optimization method for heat-electric energy dispatching in a regional integrated energy system. Firstly, a scene analysis model based on Latin Hypercube Sampling (LHS) and Backward Reduction (BR) is constructed to analyze the probabilistic properties of wind power output in various scenes, and further provide a necessary reference for integrated energy scheduling. Secondly, the schedulable electrical power and thermal demand are evaluated with the consideration of the transmission characteristics of the heat supply network, then the integrated demand response of electric-thermal coordination is adopted to facilitate suppress the heat load fluctuation and wind power consumption. Finally, the optimal scheduling model of regional integrated energy system is established considering the source-load coordination, and the optimal output of each power unit is determined with the goal of minimizing overall cost during the scheduling period. The simulation results demonstrated that the proposed scheduling method reduces the operation cost of the integrated energy system and effectively promotes the wind energy consumption. Furthermore, it serves as a benchmark for the coordinated operation of wind turbines and power grids. © 2022, The Authors. All rights reserved.

关键词： Electric power utilization

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Prediction model of multi-step attack 7

Prediction model of multi-step attack

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7th International Conference on Information Science and control Engineering, ICISCE 2020

作者： Li, Zeke Duo, Zhilin Chen, Zewen Zhao, Zilun Liang, Ye FUJIAN Electric Power Corporation BeiJing China Beijing Kedong Electric Power Control System Co. Ltd. Nari Group Corporation BeiJing China Beijing University of Posts and Telecommunications State Key Laboratory of Networking and Switching Technology Beijing China

ISBN: (纸本)9781728164069

There are many security monitoring devices running in the state gird. The security monitoring devices can detect the alerts. Correlations between these alerts are existed. A complete multi-step attack event can be divided into many stages, the serious attack events always occurs in the later stage in a complete attack. We can make better defense when facing attack if we predict the next possible attack event. This paper proposed a multi-step attack prediction model. The attack events in state gird are transformed into the original dataset, which can be considered as the input of prediction model. By using this model, state gird security personnel can use prediction model to take preventive measures from being attacked. Experiments show that the recall rate and accuracy rate of this prediction model have reached 84. 90% and 84. 91% © 2020 IEEE.

关键词： Machine learning

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New Sensing Technologies for Monitoring Machinery,Structures,and Manufacturing Processes

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Journal of Dynamics, Monitoring and Diagnostics 2023年第2期2卷 69-88页

作者： JDMD Editorial Office Zhaoyan Fan Robert X.Gao Qingbo He Yi Huang Tianxi Jiang Zhike Peng Luc Thévenaz Yuyong Xiong Shuncong Zhong Editorial Office of JDMD Chongqing University of TechnologyChongqingPeople’s Republic of China Department of Mechanical Industrialand Manufacturing EngineeringOregon State UniversityCorvallisORUSA Department of Mechanical and Aerospace Engineering Case Western Reserve UniversityClevelandOHUSA State Key Laboratory of Mechanical System and Vibration Shanghai Jiao Tong UniversityShanghaiPeople’s Republic of China Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing School of Mechanical Engineering and AutomationFuzhou UniversityFuzhouPeople’s Republic of China Institute of Precision Instrument and Intelligent Measurement&Control Fuzhou UniversityFuzhouPeople’s Republic of China School of Mechanical Engineering Ningxia UniversityYinchuanPeople’s Republic of China EPFL Ecole Polytechnique Fédérale de Lausanne Group for Fibre OpticsSCI-STI-LT Station 111015 LausanneSwitzerland

Sensing is the fundamental technique for sensor data acquisition in monitoring the operation condition of the machinery,structures,and manufacturing *** this paper,we briefly discuss the general idea and advances of various new sensing technologies,including multiphysics sensing,smart materials and metamaterials sensing,microwave sensing,fiber optic sensors,and terahertz sensing,for measuring vibration,deformation,strain,acoustics,temperature,spectroscopic,*** on the observations from the state of the art,we provide comprehensive discussions on the possible opportunities and challenges of these new sensing technologies so as to steer future development.

关键词： fiber optic sensor metamaterials sensing microwave sensing multiphysics sensing terahertz sensing

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Frequency and Voltage Regulation Strategy of Microgrid Based on Energy Storage Virtual Synchronous Generator technology

Frequency and Voltage Regulation Strategy of Microgrid Based...

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Information technology,Big Data and Artificial Intelligence (ICIBA), International Conference on IEEE International Conference on

作者： Huang Baocheng Cheng Yueliang Lin Quan He Zhengdong Gao Yuan Ye Hairui SPIC JIANGSU NEW ENERGY Co. Ltd Yancheng China NARI Group Corporation/State Grid Electric Power Research Institute Nanjing China NARI Technology Nanjing Control System Co. Ltd Nanjing China

ISBN: (纸本)9781665428781

The application of virtual synchronous generator (VSG) in new energy grid connected power generation and microgrid application has become a research hotspot. When VSG technology is used for primary frequency regulation control of energy storage, it can be not solved the possibility that the frequency and voltage of microgrid will change greatly. Due to sudden increase or drop of load or adjustment of new energy power generation power under isolated operation mode of microgrid which will eventually lead to failure of microgrid re-grid operation. The secondary frequency modulation control is proposed to reestablish the active power frequency balance point and reactive power voltage balance point of the microgrid system under the island operation mode. Finally, the effectiveness of the proposed control strategy is verified by building a simulation model of wind, light and storage combined microgrid on the simulation platform.

关键词： Reactive power Frequency modulation Microgrids Synchronous generators Voltage control Frequency synchronization Information technology

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Enabling Stateful TCP Performance Profiling with Key Event Capturing

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IEEE Transactions on Network and Service Management 2025年

作者： Geng, Ruopeng Lu, Jianyuan Fang, Chongrong Zhang, Shaokai Zhao, Jiangu Zong, Zhigang Lyu, Biao Zhu, Shunmin Cheng, Peng Chen, Jiming Zhejiang University State Key Laboratory of Industrial Control Technology Hangzhou310027 China Alibaba Group Hangzhou310052 China Ministry of Education of China Key Laboratory of System Control and Information Processing China Shanghai Jiao Tong University Shanghai Engineering Research Center of Intelligent Control and Management Department of Automation Shanghai China Zhejiang University College of Control Science and Engineering Hangzhou310027 China

TCP ensures reliable transmission through its stateful implementation and remains crucial today. TCP performance profiling is essential for tasks like diagnosing network performance problems, optimizing transmission performance, and developing new TCP variants, etc. Existing profiling methods lack enough attention to TCP state transition to provide detailed insights on TCP performance. Thus, we build TcpSight, a tool focusing on TCP state transition throughout connection lifetimes. TcpSight conducts stateful analysis by capturing key events using an efficient per-connection lock-free data management mechanism. Besides, TcpSight enhances profiling by integrating application layer information collected from the TCP stack. With the profiling results, users can identify the culprit of TCP performance degradation, and evaluate the performance of TCP algorithms. We design optional modules and filtering mechanisms to reduce TcpSights overhead. Our evaluation presents that TcpSight incurs an additional CPU consumption of about 16.6% (without filtering) and 10.6% (with filtering) when the server's load is 55.7%, and generates storage consumption about 1.88 KB per connection on average. We also give application cases of TcpSight and the deployment experiences in Alibaba Cloud. TcpSight helps in revealing meaningful findings and insights into exploiting TCP in the production deployment. © 2004-2012 IEEE.

关键词： Information management

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Capacity and Power Allocation Strategy of Energy Storage Participating in Grid Peak Shaving

Capacity and Power Allocation Strategy of Energy Storage Par...

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IEEE Conference on Energy Internet and Energy system Integration (EI2)

作者： Tengyun Qi Qiren Wu Jianping Liu Fei Xu Yajing Li He Li Yiming Wang Cuiping Li Junhui Li China Three Gorges Corporation Beijing China China Three Gorges Renewables(Group) Co. Ltd Beijing China State Key Laboratory of Power System and Power Generation Equipment Control and Simulation (Tsinghua University) Beijing China Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology Ministry of Education (Northeast Electric Power University) Jilin China

ISBN: (纸本)9781665434263

High penetration wind power grid with energy storage system can effectively improve peak load regulation pressure and increase wind power capacity. In this paper, a capacity allocation method of energy storage system under peak load regulation scenario is proposed. The upper model combines the investment cost, operation cost, arbitrage income, environmental income, and wind power grid benefits during the entire life cycle of the energy storage system, with the goal of maximizing the net income during the energy storage life cycle; the lower model optimizes the charging and discharging power of the energy storage system according to each energy storage configuration scheme in the upper modeling, and its objective is to minimize the standard deviation of system net load and waste wind power. Finally, under the conditions of local grid load and wind power data, verified the effectiveness of capacity allocation strategy.

关键词： Costs system integration Production Wind power generation Lithium batteries Regulation Resource management

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Analysis on Stability of Three-loop Autopilot with An Acceleration Feedback Augmentation Loop

Analysis on Stability of Three-loop Autopilot with An Accele...

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第40届中国控制会议

作者： Hui Wang Tao Li Daoguang Tang Junfang Fan Yifang Yuan Luyao Zang Wugang Wang Chunyan Xiao School of Aerospace Engineering Beijing Institute of Technology Beijing Key Laboratory of UAV Autonomous Control Beijing Institute of Technology School of Electrical and Control Engineering North University of China Beijing Key Laboratory of High-Dynamic Navigation Technology Beijing Information Science and Technology University China PLA 63961 Unit Beijing System Design Institute of Electro-Mechanic Engineering Northwest Industries Group CO. Ltd.

In order to construct a stable augmentation loop, a novel three-loop autopilot structure with an acceleration feedback is proposed. Based on LQR and analytical methods, the design process of the controller parameters is deduced. For a static unstable missile, the control characteristics of a three-loop autopilot with acceleration feedback are compared with classical three-loop and pseudo-angle-of-attack feedback three-loop autopilots. It is pointed out that the closed-loop gain of the three-loop autopilot with acceleration signal feedback is 1, which is not affected by the control parameters. The autopilot can control the static unstable missile, and the acceleration signal is easier to obtain than the pseudo-angle-of-attack.

关键词： Acceleration feedback Stable augmentation loop Autopilot Static unstable missile

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