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2024 SAE World Congress Experience, WCX 2024

作者： Wu, Pengjiang Wu, Chunfu Ye, Guorui Zhao, Yonghong Ye, Baowen Wang, Liangmo Wang, Tao Zhang, Zeming Nanjing University of Science & Technology China GAC R&D Center Taizhou Xinya Trans. Eq. Co. Ltd. China

The origami structures have received increasing attention in recent years due to the high stiffness ratio and lightweight feature. This paper has proposed an origami-based honeycomb structure and investigated the mechanical properties of the structure. The compression response and energy absorption of the structure under quasi-static loading have been investigated experimentally and numerically. The numerical results closely matched the experimental results in terms of the compression force curve and deformation patterns. The effects of different structural parameters on the mechanical response and energy absorption characteristics were analyzed with the validated model. Finally, the comparative results show that the origami-inspired honeycomb structure, which is characterized by rotational folding mode under axial compression, has better performance in terms of mechanical response and energy absorption. Two parameters, the thickness and the height have a greater influence on the structural performance, and the angle of rotation has a lesser influence. This structure can have a better application prospect in the energy-absorbing box, B-pillar, door sill beam and other parts of the car. © 2024 SAE International. All rights reserved.

关键词： Honeycomb structures

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Optimal Feeder reconfiguration of Power distribution Network using PSO with Population Adaptation

Optimal Feeder Reconfiguration of Power Distribution Network...

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2023 IEEE International Conference on Energy Technologies for Future Grids, ETFG 2023

作者： Al Hosani, Ameen Singh dua, Gagandeep Sadanandan, Sajan K Ghaoud, Tareg Dewa Transmission Power Operation Technology Department United Arab Emirates Dewa R&d Center United Arab Emirates

ISBN: (纸本)9781665471640

This paper presents the distribution network optimal feeder reconfiguration problem, which is formulated using multi-objective functions such as voltage profile optimization, active power loss reduction, and load balancing. The formulated problem is solved using a technique incorporating Population Adaptation with Particle Swarm Optimization (PAPSO). In the proposed PAPSO technique, the concept of diversity is used to determine stagnation in the population. Thereafter, an enhancement step of population adaptation is employed to induce randomness in the particle population that reinitializes the population for further search. The outcomes are depicted on a modified IEEE 33-bus network at distribution voltage level, showing the most optimum feeder configuration obtained using the proposed algorithm. Furthermore, a quantitative comparison has been made between the PAPSO and standard Particle Swarm Optimization (PSO) results. The results and discussion depict that the suggested technique is relatively effective in providing the best solution in accordance with the set objectives. © 2023 IEEE.

关键词： Load Flow Multi-Objective Functions Normalization Particle Swarm Optimization Population Adaptation Power distribution Network reconfiguration

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Mitigation of Subsynchronous Control Interaction in dFIG-Based Wind Farm Using SdC-LAdrC

Mitigation of Subsynchronous Control Interaction in DFIG-Bas...

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2024 CPSS and IEEE International Symposium on Energy Storage and Conversion, CPSS and ISESC 2024

作者： Chen, Binbin Zhang, damin Cao, Jiongqiong Zhong, Yichuan Huang, Jinping Zhang, Yuanzhong College of Electrical Engineering and Automation Xiamen University of Technology Xiamen China Kehua Data Co Ltd Kehua Data R&D Center Xiamen China

ISBN: (纸本)9798350380514

The interaction between wind farms based on doubly-fed induction generators (dFIG) and series capacitors in transmission lines can result in sub-synchronous control interaction (SSCI). due to the influence of system conditions on the oscillation frequency of SSCI, traditional supplementary sub-synchronous damping control (SSdC) methods, which rely on phase compensation and filtering parameters, become inadequate under varying conditions. To address this issue, this paper proposes a novel supplementary damping-based linear active disturbance rejection control (SdC-LAdrC) approach to mitigate SSCI in various scenarios. First, a supplementary damping controller (SdC) is designed to enhance positive damping on the rotor side. Next, the combination of LAdrC control and SdC replaces rotor-side converter (rSC) inner loop control. The SdC-LAdrC controller leverages the linear extended state observer (LESO) within the LAdrC framework to estimate subsynchronous disturbances and provide real-time feedback compensation. This approach effectively suppresses SSCI at full compensation levels, outperforming traditional SSdC methods. Finally, the effectiveness of proposed control method is verified through MATLAB/ Simulink simulation tools. © 2024 IEEE.

关键词： MATLAB

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design of Emergency Command System Based on Power Grid risks Location and Intelligent Plan 23

Design of Emergency Command System Based on Power Grid Risks...

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15th International Conference on Computer Modeling and Simulation, ICCMS 2023

作者： Liu, Yitian Meng, Qingqiang Product R&D Center Department II Nanjing NARI Information and Communication Technology Co. Ltd. China

ISBN: (纸本)9798400707919

Extreme meteorological disasters put forward higher requirements for the real-time, concurrent scale and intelligent decision-making of the power grid emergency command system. A power grid risk intelligent analysis and optimization method based on Gated recurrent Unit (GrU) is proposed, and the intelligent analysis and orchestration mechanism of digital emergency plan based on coloring Petri network and the architecture of the plan command system based on a grid emergency map are designed, which improves the efficiency and accuracy of power grid risks location. The effectiveness of the proposed method is verified by constructing a practical system. © 2023 ACM.

关键词： Location

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Ontology Construction technology of Knowledge Graph in Oil and Gas Exploration and development 13th

Ontology Construction Technology of Knowledge Graph in Oil a...

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13th International Field Exploration and development Conference, IFEdC 2023

作者： Li, Ning ren, Liang Liu, Zong-Shang ren, Shu-Hang Xiang, Chong Wu, Bo-Yu Cai, Xuan Research Institute of Petroleum Exploration and Development PetroChina Beijing China Artificial Intelligence Technology R&D Center for Exploration and Development CNPC Beijing100083 China

ISBN: (纸本)9789819702718

With the gradual application of knowledge atlas technology in oil and gas exploration and development fields such as intelligent evaluation of oil and gas reservoir and intelligent identification of oil and gas reservoir through logging, the application of knowledge Atlas in oil and gas industry has attracted more and more attention. In view of the problem of knowledge expression and application in E&P sector field, a professional word bank of E&P was established based on web crawler technology, a feature corpus of E&P field was established by extracting E&P sector related achievement documents and literature data, and the principle of E&P knowledge graph ontology construction was formulated and the construction process was defined. The multistage classification system of oil and gas exploration and development knowledge atlas ontology is described and constructed from multiple dimensions such as sector, object and feature, and the knowledge atlas ontology model of oil and gas exploration and development sector domain is formed, which lays a foundation for the in-depth application of knowledge atlas technology in petroleum exploration and development. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Ontology

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MoS_(2) nanoflowers and PEdOT:PSS nanocomposite enabling wearable dual-mode pressure sensors

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Science China(Technological Sciences) 2024年第6期67卷 1737-1747页

作者： WANG FengMing YANG WeiJia MA Ke SHEN GengZhe SU daoJian LI BaiJun WANG ShuangPeng QIN BoLong ZHANG Chi XIN Yue CAO XiaoBing HE Xin School of Applied Physics and Materials Wuyi UniversityJiangmen529020China Biomaterials R&D Center Zhuhai Institute of Advanced TechnologyChinese Academy of SciencesZhuhai519003China Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of MacaoMacao999078China

A versatile sensing platform employing inorganic MoS_(2) nanoflowers and organic poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate)(PEdOT:PSS)has been investigated to develop the resistive and capacitive force-sensitive *** microstructure of the sensing layer heightens the sensitivity and response time of the dual-mode pressure sensors by augmenting electron pathways and inner stress in response to mechanical ***,the capacitive and resistive sensors exhibit sensitivities of 0.37 and 0.12 kPa^(-1),respectively,while demonstrating a remarkable response time of approximately 100 ***,it is noteworthy that the PEdOT:PSS layer exhibits excellent adhesion to polydimethylsiloxane(PdMS)substrates,which contributes to the development of highly robust force-sensitive sensors capable of enduring more than 10000loading/unloading *** combination of MoS_(2)/PEdOT:PSS layers in these dual-mode sensors has shown promising results in detecting human joint movements and subtle physiological ***,the sensors have achieved a remarkable precision rate of 98%in identifying target *** outcomes underscore the significant potential of these sensors for integration into applications such as electronic skin and human-machine interaction.

关键词： MoS_(2)/PEdOT:PSS nanocomposite force-sensitive sensor multi-scaled microstructure physiological signals monitoring object grasping recognition

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design and implementation of the second-generation COSPAS-SArSAT distress beacon based on Sdr 6

Design and implementation of the second-generation COSPAS-SA...

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6th IEEE International Conference on Automation, Electronics and Electrical Engineering, AUTEEE 2023

作者： renle, Zheng Wenxue, Liu Chaosan, Yang Jintao, Wan dongyang, Li Jinhai, Li Imecas Communications and Information Engineering R&d Center Beijing China Imecas New Technology Development Department Beijing China

ISBN: (纸本)9798350305623

COSPAS-SArSAT has currently completed the design of a new generation distress beacon systems, namely the second-generation distress beacon system. The second-generation distress beacon adopts dSSS-OQPSK as its basic signal modulation mode, while adopting a new signal detail structure. This paper provides a solution for the hardware implementation of the second-generation COSPAS-SArSAT distress beacon on Software-defined radio (Sdr). Firstly, the baseband signal that meets the definition format of the second-generation beacon standard was generated, and then the second-generation beacon was transmitted through the Universal Software radio Peripheral (USrP). By comparing with specific requirements of the second-generation distress beacon standard, the second-generation beacon generated by this paper can meet the requirements of the second-generation COSPAS-SArSAT distress beacon standard, and the method proposed in this paper has the advantages of flexibility and higher signal reconfigurability. © 2023 IEEE.

关键词： COSPAS-SArSAT dSSS-OQPSK Sdr second-generation distress beacon

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Electromagnetic Simulation of the Impact of Electrode r-Angle design on the Electric Field in Multilayer Ceramic High-Voltage Capacitors 14

Electromagnetic Simulation of the Impact of Electrode R-Angl...

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14th International Conference on reliability, Maintainability and Safety, ICrMS 2023

作者： Longbo, Chen Zhiwen, Tian Sen, Lin Zichong, Peng R&D Center Fujian Torch Electron Technology Co. Ltd. Fujian Quanzhou China Beijing China

ISBN: (纸本)9798350329988

The conventional verification of capacitors entails a multitude of reliability tests, necessitating a substantial quantity of products and costly instrumentation. Consequently, the verification process is characterized by elevated costs and protracted cycles. To investigate the impact of the r-angle design in multilayer ceramic high-voltage capacitor electrodes on electric field distribution, an analysis of electromagnetic simulations was conducted. This analysis examined various r-angle designs within the wire mesh, discerning the influence of r-angle size and shape on electric field distribution. The simulation yielded insights into the relationships among different r-angle sizes, distinct r-angle shapes, and the size and distribution of the electric field. © 2023 IEEE.

关键词： Capacitor bank

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Novel Temporary Bonding/debonding System Enabling Advanced Packaging Process 22

Novel Temporary Bonding/Debonding System Enabling Advanced P...

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22nd International Conference on Electronics Packaging, ICEP 2023

作者： Miyazawa, Emi Enomoto, Tetsuya Akasu, Yuta Sobue, Shogo Nakamura, Yuki Ogawa, Saeko Kawamori, Takashi Institute for Advanced Integrated Technology Resonac Corporation Packaging Materials Group High Performance Materials Department Electronics R&D Center Electronics Business Headquarters Resonac Corporation Film R&D Group Packaging Materials R&D Department Institute for Advanced Integrated Technology Resonac Corporation Bonding Materials Group High Performance Materials Department

ISBN: (纸本)9784991191152

Novel temporary bonding/debonding system including high heat resistant temporary bonding adhesive and debonding methods with newly developed photonic release by Xe flash light irradiation will be introduced. New temporary bonding adhesive is endurable up to 300 °C and can be easily removed by peeling off after debonding from the support carrier. By adopting the dual layer structure with adhesive layer and metal layer on glass carrier, one-shot Xe flash light irradiation within 5 ms enables debonding cleanly, indicating the increased throughput at debonding step. Process demonstration results of wafer thinning down to 50 μm, fan-out wafer level packaging (FOWLP) will also be shown. © 2023 Japan Institute of Electronics Packaging.

关键词： debonding

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demonstration of Coherent Transceiver for Visible-Wavelength Applicable to Communication and doppler Lidar Systems

Demonstration of Coherent Transceiver for Visible-Wavelength...

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2022 Conference on Lasers and Electro-Optics Pacific rim, CLEO/Pr 2022

作者： Tamada, Akihito Ito, Yusuke Imaki, Masaharu Kameyama, Shumpei Mitsubishi Electric Corp. Information Technology R&D Center Japan

The coherent transceiver for visible wavelength is demonstrated. Successful heterodyne-detection is shown including the doppler shift detection. The experimental results indicate the future possibility for the coheren... 详细信息

关键词： Heterodyne detection

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