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37th Youth Academic Annual Conference of Chinese Association of Automation, YAC 2022

作者： Qu, Dejian Li, Shengming Zhang, Jingyu Lv, Zongyang Dalian University of Technology School of Control Science and Technology Dalian China School of Control Science and Engineering Dalian University of Technology Dalian China

ISBN: (纸本)9781665465366

This paper analyzes the working principle of the single-phase inverter, studies the problems of slow dynamic response and weak anti-interference ability of the existing PI controller scheme inverter, and designs a linear active disturbance rejection controller. Under this control method, the dynamic response performance and anti-interference ability of the inverter have been significantly improved compared with the PI controller. In this paper, the bandwidth method is used to simplify the design of ADRC and the parameters are set. The control effect is verified by bus jump and load jump. The simulation is carried out in Simulink, and the experimental platform is built to verify the scheme. The simulation and experimental results verify the effectiveness of the LADRC controller, as well as stronger dynamic response performance and anti-interference ability compared with the PI controller. © 2022 IEEE.

关键词： Bandwidth

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Object-Level Feature Memory and Aggregation for Live-Stream Video Object Detection

Object-Level Feature Memory and Aggregation for Live-Stream ...

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2023 China Automation Congress, CAC 2023

作者： Li, Yi Ma, Sile Li, Zhenyu Luan, Yizhong Jiang, Zecui School of Control Science and Engineering Shandong University Jinan China Institute of Marine Science and Technology Shandong University Qingdao China

ISBN: (纸本)9798350303759

This paper proposes an object-level feature memory module that utilizes attention mechanisms to explore spatial and temporal contexts in videos. Compared to still-image object detectors, video object detectors consider features in the spatiotemporal dimensions, leading to higher accuracy. How-ever, previous video object detection methods often focused on memory and fusion at the feature map level when integrating features across different frames. These approaches not only introduce significant computational and memory burdens but also introduces considerable noise. To address these challenges, we introduce object-level feature memory, which not only retains features from previous frames but also reduces memory and computational overhead, resulting in a substantial improvement in the performance of video object detectors. The experiments conducted on the UA-DETRAC dataset validate the effectiveness of our approach in live-stream video object detection scenarios. Our method achieved 66.73% AP based on YOLOX-S, which is 4.0% more AP than the normal YOLOX-S. Our codes are released at https://***/Liyi4578/0FMA. © 2023 IEEE.

关键词： Object detection

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A self-cleaning window for high-efficiency photodegradation of indoor formaldehyde

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Chinese Chemical Letters 2024年第9期35卷 340-345页

作者： Changzhu Huang Wei Dai Shimao Deng Yixin Tian Xiaolin Liu Jia Lin Hong Chen Department of Physics Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric PowerShanghai University of Electric PowerShanghai 200090China Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution ControlGuangdong Provincial Key Laboratory of Soil and Groundwater Pollution ControlSchool of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China Eastern Institute for Advanced Study Eastern Institute of TechnologyNingbo 315200China

Formaldehyde(HCHO)as an indoor air pollutant released by new furniture and decorative materials is of great *** a self-cleaning device to remove HCHO is an ideal way to improve indoor air *** this study,a self-cleaning window with a multilayered structure constructed from fluorinedoped tin oxide/bismuth tungstate/resorcinol-formaldehyde resin(FTO/Bi_(2)WO_(6)/RF)has been fabricated,which is capable of degrading HCHO in natural indoor *** as-fabricated device could utilize the natural room light and promote the generation and transfer of the photocatalytic carriers in Bi_(2)WO_(6),which subsequently delivers a good catalytic oxygen reduction efficiency in RF to produce hydrogen peroxide(H_(2)O_(2)).The as-synthesized H_(2)O_(2)could further split into hydroxyl radicals(•OH),then oxide the HCHO molecules in the *** present study demonstrates a novel and efficient strategy to fabricate a transparent multifunctional window for self-cleaning indoor gaseous pollutants,the concept is of great importance to be expanded in a broad range of indoor furniture for in-house air pollution control.

关键词： Bismuth tungstate Resorcinol-formaldehyde Photocatalysis Hydrogen peroxide HCHO degradation

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Effect of Water Soaking on the Microstructure and Spontaneous Combustion Characteristics of Bituminous Coal During Low−Temperature Oxidation

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Combustion science and Technology 2024年第11期196卷 1743-1767页

作者： Yi, Xin Zhang, Shaohang Bai, Zujin Deng, Jun Shu, Chimin Qu, Gaoyang Ge, Long School of Safety Science and Engineering Xi’an University of Science and Technology Shaanxi Xi’an China Shaanxi Key Laboratory of Prevention and Control of Coal Fire Xi’an University of Science and Technology Shaanxi Xi’an China Center for Process Safety and Disaster Prevention National Yunlin University of Science and Technology Yunlin Taiwan

The effects of water soaking on the microstructure and spontaneous combustion characteristics of coal samples were investigated by scanning electronic microscopy (SEM), Fourier transform infrared (FTIR) spectrometer, and temperature programmed testing system (TPTS). The SEM results showed that the pore structures on the surface of water−soaked coal were more developed than raw coal, the pores increased and enlarged, and the phenomenon of water absorption swelling occurred. At the same time, water soaking had a certain influence on the functional groups in coal. The results of FTIR clearly illustrated that the surface functional groups of water−soaked coal were more active, and the contents of functional groups such as hydroxyl, methylene, aliphatic ether and aromatic ether all increased to varying degrees. During the low−temperature oxidation process, the analysis results of TPTS indicated that the oxygen consumption rate and the production of CO, C2H4, and other gases of water−soaked coal were higher. Based on the analysis method of CO, CO/CO2 and C2H4 gas growth rate, the three peaks of the curve obtained correspond to the characteristic temperatures of each oxidation stage of the coal samples. The critical temperature, dry cracking temperature and fission temperature of water−soaked coal were 60 ± 10 ℃, 90 ± 10 ℃ and 120 ± 10 ℃, respectively, which was 10 ℃ lower than raw coal. The apparent activation energy (Ea) of coal was calculated by the CO model and fitted in sections. It can be seen that the Ea of water−soaked coal at different stages of low−temperature oxidation was lower, and the maximum difference was 2.1 kJ/mol. Therefore, from the above results, it inferred that the activity of bituminous coal became stronger after soaking in water, which may be due to the effect of soaking on the surface structure and active groups of coal, thus showing a higher risk of spontaneous combustion. © 2022 Taylor & Francis Group, LLC.

关键词： Temperature

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Low-carbon Economic Dispatch of Integrated Energy Systems Considering Extended Carbon Emission Flow

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Journal of Modern Power Systems and Clean Energy 2024年第6期12卷 1798-1809页

作者： Yumin Zhang Pengkai Sun Xingquan Ji Fushuan Wen Ming Yang Pingfeng Ye Shandong University of Science and Technology Qingdao 266590China Hainan Institute Zhejiang UniversitySanya 572000China School of Electrical Engineering Zhejiang UniversityHangzhou 310027China Key Laboratory of Power System Intelligent Dispatch and Control Shandong UniversityJinan 250061China

Carbon capture and storage(CCS)systems can provide sufficient carbon raw materials for power-to-gas(P2G)systems to reduce the carbon emission of traditional coal-fired units,which helps to achieve low-carbon dispatch of integrated energy systems(IESs).In this study,an extended carbon-emis-sion flow model that integrates CCS-P2G coordinated operation and low-carbon characteristics of an energy storage system(ESS)is *** the energy supply side,the coupling rela-tionship between CCS and P2G systems is established to realize the low-carbon economic operation of P2G *** the en-ergy storage side,the concept of"state of carbon"is introduced to describe the carbon emission characteristics of the ESS to ex-ploit the potential of coordinated low-carbon dispatch in terms of both energy production and *** addition,a low-car-bon economic dispatch model that considers multiple uncertain-ties,including wind power output,electricity price,and load de-mands,is *** solve the model efficiently,a parallel multidimensional approximate dynamic programming algo-rithm is adopted,while the solution efficiency is significantly im-proved over that of stochastic optimization without losing solu-tion accuracy under a multilayer parallel loop nesting *** low-carbon economic dispatch method of IESs is composed of the extended carbon emission flow model,low-car-bon economic dispatch model,and the parallel multidimension-al approximate dynamic programming *** effective-ness of the proposed method is verified on E14-H6-G6 and E57-H12-G12 systems.

关键词： Low-carbon economic dispatch carbon emission flow state of carbon parallel multidimensional approximate dynamic programming integrated energy system(IES)

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Design of an aircraft autonomous traction taxiing system based on hydraulic secondary control

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Chinese Journal of Aeronautics 2024年第6期37卷 348-359页

作者： Xiaochao LIU Zhongyi QIU Hao ZHANG Pengyuan QI Zhenyu WANG Yaoxing SHANG Zongxia JIAO Research Institute for Frontier Science Beihang UniversityBeijing 100083China School of Automation Science and Electrical Engineering Beihang UniversityBeijing 100083China Ningbo Institute of Technology Beihang UniversityNingbo 315800China Tianmushan Laboratory Xixi Octagon CityYuhang DistrictHangzhou 310023China Science and Technology on Aircraft Control Laboratory Beihang UniversityBeijing 100083China Beijing Tianma Intelligent Control Technology Co. Ltd.Beijing 101399China China Coal Research Institute Beijing 100013China

At present,aircraft taxiing at ground airports needs to be provided with a thrust by the main *** taxiing process is inefficient,has high fuel consumption and serious pollution,and is prone to safety *** this paper,a new configuration of aircraft autonomous traction taxiing system is proposed based on the principle of hydraulic secondary control,in which a hydraulic motor drive device is installed at the front wheels of the aircraft to drive the wheels to rotate forward or *** on this,autonomous taxiing can be realized without relying on the main engines,thus greatly improving airport operation ***,this paper analyzes the influencing factors of the autonomous traction taxiing process,and investigates the parameter matching design of the new configuration ***,this paper develops the ground principle prototype,designs the aircraft longitudinal bonding force observer and the aircraft wheel disturbance moment observer,and proposes the speed control method of the aircraft front wheel autonomous traction taxiing by considering the ground bonding force saturation ***,the ground taxiing test is conducted,and the results show that the new configuration proposed in this paper presents a new solution for aircraft autonomous traction taxiing.

关键词： Autonomous traction taxi-ing Hydraulic secondary control Hydraulic motors Saturation characteristics Disturbance observation Speed control

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Dual Encoder Cross-Shape Transformer Network for Medical Image Segmentation in Internet of Medical Things for Consumer Health

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IEEE Transactions on Consumer Electronics 2025年第1期71卷 538-549页

作者： Zhao, Yawu Wang, Shudong Zhang, Yulin Ren, Yande Zhang, Yuanyuan Pang, Shanchen the School of Computer Science and Technology China University of Petroleum Shandong Qingdao China the College of Mathematics and System Science Shandong University of Science and Technology Shandong Qingdao China the Department of Medical Imaging Center the Affiliated Hospital of Qingdao University Shandong Qingdao China the School of Information and Control Engineering Qingdao University of Technology Shandong Qingdao China

In emerging consumer healthcare, high-performance and robust medical image segmentation methods are essential for personalized diagnosis and treatment. Thus, early screening of aneurysms reduces the risk of aneurysm rupture and provides therapeutic and preventive measures. However, uncontrollable factors such as uncertainty in the size and location shape of tumors in medical images a significant challenge to medical image segmentation. These factors make extracting high-quality features from aneurysm images difficult, resulting in poor segmentation. Then, we designed a dual encoder cross-shape transform network (DECSTNet) to capture aneurysm feature information. The dual encoder structure can extract aneurysm feature information at different scales, the adaptive dynamic feature fusion module can fuse features at different scales between the encoders, and the cross-shape window transform layer can compute the width and height of the image in parallel for local self-attention, which enhances the interactive capability of the telematic information while realizing the complementarity of the local information. Through extensive experiments, we demonstrate the excellent segmentation performance of DECSTNet on the private and three public datasets. Noteworthy our method has significant segmentation performance and fewer parameters, making it well-suited to be deployed on IoMT diagnostic platforms for medical image segmentation to promote healthy patient consumption. © 2025 IEEE.

关键词： Semantic Segmentation

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Embedded Multi-Port Converters for Synthesis and Enhancement of Hybrid-Clamped Multilevel Converters

Embedded Multi-Port Converters for Synthesis and Enhancement...

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2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023

作者： Li, Yuzhuo Gunawardena, Pasan Tian, Hao Li, Yunwei University of Alberta Department of Electrical and Computer Engineering Edmonton Canada Shandong University School of Control Science and Engineering Jinan China

ISBN: (纸本)9798350316445

Leveraging a number of inner capacitors/inductors, hybrid-clamped multilevel converters (MLCs) normally face great challenges among good performance (proper charge/discharge of these devices), high efficiency (maintaining low losses) and high power density (compact profile). On the other hand, these multiple-device energy-processing requirements have been addressed well in some promising multi-port converters (MPCs), and, therefore, inspire us to implement well-developed compact MPCs to facilitate the voltage/current level generation process in hybrid-clamped MLCs. Though recently, some researchers started to integrate active cells into hybrid-clamped MLCs and improve capacitor voltage control and generate extra output levels, the systematic synthesis method is still unclear and rarely discussed in the literature. To address this gap, we propose a systematic synthesis method for those hybrid clamped MLCs that can benefit from embedding well-developed MPCs. The approach can be applied for both voltage-source and current-source hybrid-clamped MLCs, covering emerging MLCs. In particular, we also derived and verified a new mixed hybrid MLC family through an emerging current-fed dual-input isolated multi-port converter. This topology features both current-source and voltage-source benefits and is ideal for future renewable generation integration. © 2023 IEEE.

关键词： Converters Synthesis Hybrid-Clamped Multi-level Converters Multi-port Converters

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High Precision SoC Estimation of LiFePO4 Blade Batteries Using Improved OCV-Based PNGV Model 49

High Precision SoC Estimation of LiFePO4 Blade Batteries Usi...

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49th Annual Conference of the IEEE Industrial Electronics Society, IECON 2023

作者： Tao, Zhen Zhao, Zhenyu Fan, Fei Jie, Huamin Chang, Yongqi See, Kye Yak School of Electrical and Electronic Engineering Nanyang Technological University Singapore Harbin Institute of Technology Department of Control Science and Engineering China

ISBN: (纸本)9798350331820

The state-of-charge (SoC) stands as a pivotal measure for ascertaining a battery's remaining capacity. Accurate SoC estimations can meaningfully enhance a battery's operational longevity, fortify safety standards, and enrich user experience. This paper presents an improved open circuit voltage (OCV)-based partnership for a new generation of vehicle (PNGV) model, specifically tailored for estimating the SoC of LiFePO4 blade batteries. These batteries are distinctively characterized by their advantages in safety, energy density, and thermal management. The proposed model uniquely integrates the SoC-dependent property of the battery's internal resistance, facilitating a marked improvement in estimation accuracy over existing PNGV models. Experimental results underscore the capability and effectiveness of the proposed model in estimating real-time discharging curves, achieving a remarkably low relative error rate of 0.85%. © 2023 IEEE.

关键词： Open circuit voltage

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The twisted two-dimensional ferroelectrics

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Journal of Semiconductors 2023年第1期44卷 32-42页

作者： Xinhao Zhang Bo Peng National Engineering Research Center of Electromagnetic Radiation Control Materials School of Electronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu 611731China Key Laboratory of Multi-spectral Absorbing Materials and Structures of Ministry of Education University of Electronic Science and Technology of ChinaChengdu 611731China

Since the beginning of research on two-dimensional(2D)materials,a few numbers of 2D ferroelectric materials have been predicted or experimentally confirmed,but 2D ferroelectrics as necessary functional materials are greatly important in developing future electronic *** breakthroughs in 2D ferroelectric materials are impressive,and the physical and structural properties of twisted 2D ferroelectrics,a new type of ferroelectric structure by rotating alternating monolayers to form an angle with each other,have attracted widespread interest and ***,we review the latest research on twisted 2D ferroelectrics,including Bernal-stacked bilayer graphene/BN,bilayer boron nitride,and transition metal ***,we prospect the development of twisted 2D ferroelectrics and discuss the challenges and future of 2D ferroelectric materials.

关键词： magic angle multiferroic ferromagnetic electric polarization long-range

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