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Integrated system of traditional THz time-domain spectroscopy and asynchronous optical sampling
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作者 丁晶 孟庆昊 +4 位作者 沈妍 丁晨鑫 苏波 崔海林 张存林 《Chinese Physics B》 SCIE EI CAS CSCD 2023年第4期742-746,共5页
Terahertz time-domain spectroscopy(THz-TDS)system,as a new means of spectral analysis and detection,plays an increasingly pivotal role in basic scientific research.However,owing to the long scanning time of the tradit... Terahertz time-domain spectroscopy(THz-TDS)system,as a new means of spectral analysis and detection,plays an increasingly pivotal role in basic scientific research.However,owing to the long scanning time of the traditional THz-TDS system and the complex control of the asynchronous optical scanning(ASOPS)system,which requires frequent calibration,we combine traditional THz-TDS and ASOPS systems to form a composite system and propose an all-fiber trigger signal generation method based on the time overlapping interference signal generated by the collinear motion of two laser pulses.Finally,the time-domain and frequency-domain spectra are obtained by using two independent systems in the integrated systems.It is found that the full width at half maximum(FWHM)of the time-domain spectra and the spectral width of the frequency-domain spectra are almost the same,but the sampling speed of the ASOPS system is significantly faster than that of the traditional THz-TDS system,which conduces to the study of the transient characteristics of substances. 展开更多
关键词 terahertz time-domain spectroscopy(THz-TDS) asynchronous optical scanning(ASOPS)system integrated system trigger signal
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Development of an Integrated System to Enhance Spatial Data Processing & Management for Planning Authorities
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作者 Clayton Lumwaya Jackson Phiri 《Journal of Geoscience and Environment Protection》 2023年第3期17-29,共13页
In a world where there is constant data generation and processing, the need for an integrated system cannot be overemphasized. The systems that enable storage of large amounts of spatial data and must be made availabl... In a world where there is constant data generation and processing, the need for an integrated system cannot be overemphasized. The systems that enable storage of large amounts of spatial data and must be made available to multiple users in real time. Studies have shown that standalone desktop spatial systems are often rigid and inflexible to support multiple data processing or demands from multiple users. The integrated spatial management system was designed to address the above highlighted challenges by bringing enhanced possibilities of utilization of spatial data though improving accessibility, visualization, and processing spatial information. The present work employed a mixed approach of qualitative and quantitative techniques to obtain the desired result. Qualitative data collection tools were used to collect field data required to design the prototype. The research sought to establish whether the integrated systems are in use by the targeted institutions, the findings highlighted that 71.4% have no integrated spatial data systems while 28.6% have partial-integrated systems. An overview of the architecture of integrated spatial systems consists of a well distributed database linked to multiple tools and platforms to query both the spatial and non-spatial data. The WEB-GIS and Mobile GIS interfaces were developed to allow multiple users to access information through the web in real time and data collection, respectively. 展开更多
关键词 integrated Information Management system Geographical Information system Planning Authority
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Multidisciplinary Design Optimization of A Human Occupied Vehicle Based on Bi-Level Integrated System Collaborative Optimization 被引量:4
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作者 赵敏 崔维成 李翔 《China Ocean Engineering》 SCIE EI CSCD 2015年第4期599-610,共12页
The design of Human Occupied Vehicle (HOV) is a typical multidisciplinary problem, but heavily dependent on the experience of naval architects at present engineering design. In order to relieve the experience depend... The design of Human Occupied Vehicle (HOV) is a typical multidisciplinary problem, but heavily dependent on the experience of naval architects at present engineering design. In order to relieve the experience dependence and improve the design, a new Multidisciplinary Design Optimization (MDO) method "Bi-Level Integrated System Collaborative Optimization (BLISCO)" is applied to the conceptual design of an HOV, which consists of hull module, resistance module, energy module, structure module, weight module, and the stability module. This design problem is defined by 21 design variables and 23 constraints, and its objective is to maximize the ratio of payload to weight. The results show that the general performance of the HOV can be greatly improved by BLISCO. 展开更多
关键词 Multidisciplinary Design Optimization (MDO) Human Occupied Vehicle (HOD Bi-Level integrated systemCollaborative Optimization (BLISCO) general performance
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The Integrated System of Aerial Photogrammetry and Tower Locations Optimization for Transmission Lines
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作者 Xie Yuan, Pan Yijun, Fu Bin Northwest Power Design Institute 《Electricity》 1996年第4期45-48,共4页
This paper describes the functions and the features of the integrated system of aerial survey and tower locations optimization for transmission lines, which includes all stages from data acquisition, data transmission... This paper describes the functions and the features of the integrated system of aerial survey and tower locations optimization for transmission lines, which includes all stages from data acquisition, data transmission and data processing to automatic optimization of the tower locations and drawing. The paper also briefly describes the economic benefit gained from this system, and finally proposes the directions of the future development for this system. 展开更多
关键词 PRO The integrated system of Aerial Photogrammetry and Tower Locations Optimization for Transmission Lines
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Integrated System of Solar Cells with Hierarchical NiCo2O4 Battery-Supercapacitor Hybrid Devices for Self-Driving Light-Emitting Diodes 被引量:5
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作者 Yuliang Yuan Yangdan Lu +10 位作者 BeiEr Jia Haichao Tang Lingxiang Chen YuJia Zeng Yang Hou Qinghua Zhang Qinggang He Lei Jiao Jianxing Leng Zhizhen Ye Jianguo Lu 《Nano-Micro Letters》 SCIE EI CAS CSCD 2019年第3期92-103,共12页
An integrated system has been provided with a-Si/H solar cells as energy conversion device,NiCo2O4 battery-supercapacitor hybrid(BSH)as energy storage device,and light emitting diodes(LEDs)as energy utilization device... An integrated system has been provided with a-Si/H solar cells as energy conversion device,NiCo2O4 battery-supercapacitor hybrid(BSH)as energy storage device,and light emitting diodes(LEDs)as energy utilization device.By designing three-dimensional hierarchical NiCo2O4 arrays as faradic electrode,with capacitive electrode of active carbon(AC),BSHs were assembled with energy density of 16.6 Wh kg-1,power density of 7285 W kg-1,long-term stability with 100% retention after 15,000 cycles,and rather low self-discharge.The NiCo2O4//AC BSH was charged to 1.6 V in 1 s by solar cells and acted as reliable sources for powering LEDs.The integrated system is rational for operation,having an overall efficiency of 8.1% with storage efficiency of 74.24%.The integrated system demonstrates a stable solar power conversion,outstanding energy storage behavior,and reliable light emitting.Our study offers a precious strategy to design a self-driven integrated system for highly efficient energy utilization. 展开更多
关键词 integrated system NiCo2O4 Battery-supercapacitor hybrid devices SELF-DRIVING LED
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Adaptive Federal Kalman Filtering for SINS/GPS Integrated System 被引量:2
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作者 杨勇 缪玲娟 《Journal of Beijing Institute of Technology》 EI CAS 2003年第4期371-375,共5页
A new adaptive federal Kalman filter for a strapdown integrated navigation system/global positioning system (SINS/GPS) is given. The developed federal Kalman filter is based on the trace operation of parameters estima... A new adaptive federal Kalman filter for a strapdown integrated navigation system/global positioning system (SINS/GPS) is given. The developed federal Kalman filter is based on the trace operation of parameters estimation's error covariance matrix and the spectral radius of update measurement noise variance-covariance matrix for the proper choice of the filter weight and hence the filter gain factors. Theoretical analysis and results from simulation in which the SINS/GPS was compared to conventional Kalman filter are presented. Results show that the algorithm of this adaptive federal Kalman filter is simpler than that of the conventional one. Furthermore, it outperforms the conventional Kalman filter when the system is undertaken measurement malfunctions because of its possession of adaptive ability. This filter can be used in the vehicle integrated navigation system. 展开更多
关键词 SINS/GPS integrated navigation federal Kalman filtering adaptive filtering
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Integrated Systemfor Tube Bending Digital Manufacturing 被引量:2
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作者 吕波 唐承统 +1 位作者 宁汝新 宋月英 《Journal of Beijing Institute of Technology》 EI CAS 2006年第2期127-132,共6页
An integrated CAD/CAPP/CAM system of tube manufacturing based on integration frame is presented. In this system, two kinds of data conventions describing tube shape are presented in tube CAD subsystem, the object-orie... An integrated CAD/CAPP/CAM system of tube manufacturing based on integration frame is presented. In this system, two kinds of data conventions describing tube shape are presented in tube CAD subsystem, the object-oriented concept and the goal-driven inference mechanism have been applied in the development of the knowledge-based CAPP subsystem and simulation of tube processing under tube bending simulation subsystem is performed based on the tube model's piecewise representation. A tube product case is considered to give the application of the integrated system, and the advantages of the system in the use of tube bending are revealed. 展开更多
关键词 numerical control (NC) tube bending CAD/CAPP/CAM integration process decision bending simulation
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Computational Analysis of Performance for Heterogeneous Integrated System with Test Automation 被引量:1
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作者 K.Krishna Mohan A.Srividya Ravikumar Gedela 《International Journal of Automation and computing》 EI 2007年第4期353-358,共6页
Heterogeneity is inevitable in enterprises due to their various input requirements. The usage of proprietary integration products results in the increased cost of enterprises. During the integration, the focus area ha... Heterogeneity is inevitable in enterprises due to their various input requirements. The usage of proprietary integration products results in the increased cost of enterprises. During the integration, the focus area has been found to often address only the functional requirements, while the non-functional requirements are side-stepped during the initial stages of a project. Moreover, the use of proprietary integration products and non-standards-based integration platform has given rise to an inflexible integration infrastructure resulting in adaptability concerns. Web services-based integration, based on open standards, is deemed to be the only feasible solution in such cases. This paper explains the performance analysis of enterprise integration in heterogeneous environments for the distributed and the transactional applications. The analysis presented in this paper is seen as a step towards making intelligent decisions well in advance when choosing the integration mechanism/products to address the functional as well as the non-functional requirements considering the future integration needs. 展开更多
关键词 Enterprise application integration reliability performance web services point-to-point IBM/rational platform service oriented architecture.
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“An integrated system,three separated responsibilities”,a new fever clinic management model,in prevention and control of novel coronavirus pneumonia 被引量:1
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作者 Jian Shen Qiang He +8 位作者 Ting Shen Zhi-Qiang Wu Ming-Ming Tan Yu-Lan Chen Qin Weng Liang-Min Nie Hong-Fang Zhang Bin Zheng Jun Zhang 《World Journal of Clinical Cases》 SCIE 2021年第30期9050-9058,共9页
BACKGROUND Since December 2019,there have been many new cases of coronavirus pneumonia in Wuhan,Hubei Province,which has gradually spread throughout the country.AIM To explore our hospital’s innovative management sys... BACKGROUND Since December 2019,there have been many new cases of coronavirus pneumonia in Wuhan,Hubei Province,which has gradually spread throughout the country.AIM To explore our hospital’s innovative management system to ensure the efficient operation of fever clinics during the epidemic,since controlling the spread of disease is an important way to prevent and control the epidemic.METHODS In total,200 outpatients with fever at our hospital between November 2019 and July 2020 were selected and allocated into two groups.RESULTS The fever clinic in our hospital operated smoothly,and infection with the novel coronavirus disease(COVID-19)has not been reported in our hospital.Additionally,we did not have any cases of missed diagnosis.The awareness regarding COVID-19 infection sources,transmission routes,early symptoms,and preventive measures was significantly higher in our fever clinic than in those of the pre-management group.CONCLUSION"An integrated system,three separate responsibilities"ensured the efficient functioning of our fever outpatient clinic and early screening of COVID-19 cases,which effectively curbed the transmission of COVID-19 and hence prevented COVID-19 pneumonia epidemic in our hospital,ultimately achieving the maximum effect of epidemic prevention and control. 展开更多
关键词 Fever clinics Novel coronavirus Novel coronavirus pneumonia Integration of three responsibilities Epidemic prevention and control
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VITROS 5600 Integrated System全自动生化免疫分析仪故障2例 被引量:1
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作者 王浪潮 《医疗装备》 2018年第4期140-140,共1页
美国强生公司生产的Integrated System全自动生化免疫分析仪,是整合了干化学技术、微量湿生化技术、增强化学发光技术、标本外观检测技术和Intellicheck全程质量监控技术的检验设备^([1])。仪器采用多层膜干化学技术,通过测定干片颜... 美国强生公司生产的Integrated System全自动生化免疫分析仪,是整合了干化学技术、微量湿生化技术、增强化学发光技术、标本外观检测技术和Intellicheck全程质量监控技术的检验设备^([1])。仪器采用多层膜干化学技术,通过测定干片颜色变化确定化合物浓度,具有连续随机上样和急诊样本插入优先功能,具有灵敏度高、特异度强、无污染、操作简单、方便快捷等特点,能够满足临床准确。 展开更多
关键词 VITROS 5600 integrated system 全自动生化免疫分析仪 故障
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Supporting Product Family Design in a3D CAD/PDM Integrated System 被引量:1
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作者 ZHANG Fen CHEN Zhuo-ning YAN Xiao-guang BIN Hong-zan 《International Journal of Plant Engineering and Management》 2006年第1期8-16,共9页
This paper addresses some key issues in supporting product family design in a 3 D CAD/ PDM integrated system and introduces the techniques developed or adopted in building the integrated system. The general architectu... This paper addresses some key issues in supporting product family design in a 3 D CAD/ PDM integrated system and introduces the techniques developed or adopted in building the integrated system. The general architecture of a 3D CAD/PDM integrated system is organized as five tiers. Multi-agent technology is applied with a collaborative design environment. The rule-based product family architecture ( PFA ) and tabular layouts of article characteristics (TLAC) technique are applied to represent the knowledge for product families. They make the knowledge understandable, simplified and can be exchanged among heterogeneous information systems. A transparently concentric integrated mode is put forward to enable the heterogeneous processes to interact and communicate regardless of the language used to construct each process. With the mode, function calling and information exchanging among different processes are carried out via message translation/parse approach. Currently, the integrated system is implemented in the platform of Windows NT and 2000. 展开更多
关键词 product family design CAD/PDM integration transparently concentric integrated mode
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Research on Flexible GaInP/GaInAs/Ge/Bi2Te3/Sb2Te3 PV-TE Integrated Systems
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作者 高鹏 CHEN Lilin +4 位作者 WU Bo ZHANG Qiming XUE Chao HOU Chengyi SUN Qiang 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2019年第4期781-786,共6页
An optimal structure design of the lattice mismatched GaInP/GaInAs/Ge solar cell with high photoelectric conversion efficiency was proposed. Two-dimensional Bi2Te3/Sb2Te3 nanosheets were prepared by solvothermal synth... An optimal structure design of the lattice mismatched GaInP/GaInAs/Ge solar cell with high photoelectric conversion efficiency was proposed. Two-dimensional Bi2Te3/Sb2Te3 nanosheets were prepared by solvothermal synthesis method used as thermoelectric(TE) functional materials, which is further hybrid with high conductive reduced graphene oxide(rGO) and carbon nanotubes(CNTs). TE film was then fabricated based on above materials. The power factor of the n-type TE film is 19.31 μW/mK2, and the power factor of the p-type TE film is 97.40 μW/mK2. The flexible TE device was integrated with flexible solar cell. Compared with the single photovoltaic(PV) cell, the efficiency of the as-prepared flexible integrated device measured under the AM1.5 illumination is significantly improved. The efficiency of the two parallel tests is increased from 27.26% and 26.59%, to 29.11% and 28.92%, respectively. The increasing ratio reaches 6.7%-8.8%. 展开更多
关键词 GaInP/GaInAs/Ge FLEXIBLE THERMOELECTRIC integrated systems
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Research on CAD/CAE/MDO integrated system for nuclear valve products
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作者 赖明珠 戴野 张国印 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2012年第4期26-30,共5页
In order to realize rapid response to performance-driven design for nuclear valve products, a rapid design platform is constructed by combining the structural features with the multi-characteristic optimization requir... In order to realize rapid response to performance-driven design for nuclear valve products, a rapid design platform is constructed by combining the structural features with the multi-characteristic optimization requirement, which integrates parametric design, multi-characteristic simulation, and multidisciplinary design optimization of nuclear power valves together. Through the integration of heterogeneous CAX/MDO software, such as UG, ANSYS and iSIGHT, the analytical efficiency is enhanced by coupling respective and unique advantage of various software systems, and the mutual coordination and information sharing are realized between the heterogeneous systems. The application example shows that the system is convenient operation that improves the automation in design and analysis on nuclear valves. The results can provide a practical and effective development method and technical reference of the integrated design system for valve products. 展开更多
关键词 NUCLEAR power VALVE MULTIDISCIPLINARY DESIGN optimization DESIGN integrated system
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Brain Localization and the Integrated Systems Hypothesis: Evidence from Broca’s Region
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作者 Gerald C. Imaezue 《Journal of Behavioral and Brain Science》 2017年第11期511-519,共9页
The human brain is a fascinatingly complex organ with specialized structures associated with distinct functions. Classical and recent studies on brain localization propose that Broca’s area underpin expressive langua... The human brain is a fascinatingly complex organ with specialized structures associated with distinct functions. Classical and recent studies on brain localization propose that Broca’s area underpin expressive language and this has been generalized to explain brain functional organization. However, recent neuroimaging studies have shown that the Broca’s area is an extended network that not only participate in its primary function-expressive language processing but in secondary functions-processing non-linguistic/nonverbal tasks as well. Also, there is hierarchical connectivity and interaction of Broca’s region and different brain areas in underlying related primary functions. For this review, I start with revisiting the classical description of brain localization. I then discuss the neuroanatomy of language production and the role of Broca’s region in language processing. I then highlight the participation of the Broca’s area in non-linguistic tasks and non-primary linguistic tasks. Ultimately, I propose a novel hypothesis called integrated systems hypothesis. The integrated systems hypothesis is useful for guiding research on the multimodal role of specific localized integrated systems of the brain especially the role of the Broca’s region in integrating linguistic and non-linguistic processing and how this facilitate language production. 展开更多
关键词 BRAIN LOCALIZATION Broca’s Area Broca’s REGION integrated system integrated systems HYPOTHESIS
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Gateway Selection in MANET Based Integrated System: A Survey
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作者 Ye Miao Zhili Sun Ning Wang 《ZTE Communications》 2015年第4期45-52,共8页
Taking advantage of spontaneous and infrastructure-less behavior, a mobile ad hoc network (MANET) can be integrated with various networks to extend communication for different types of network services. In the integ... Taking advantage of spontaneous and infrastructure-less behavior, a mobile ad hoc network (MANET) can be integrated with various networks to extend communication for different types of network services. In the integrated system, to provide inter-connection between different networks and prnvide data aggregation, the design of the-gateway is vital. In some integrated networks with muhiple gateways, proper gateway selection guarantees desirable QoS and optimization of network resource utilization. However, how to select gateway efficiently is still challenging in the integrated MANET systems with distributed behavior terminals and limited network resources. In this paper, we examine gateway selection problem from different aspects including information discovery behavior, selection criteria and decision-making entity. The benefits and drawbacks for each method are illustrated and compared. Based on the discussion, points of considerations are highlighted for future studies. 展开更多
关键词 gateway selection MANET integrated network routing algorithms QOS
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A Distributionally Robust Optimization Scheduling Model for Regional Integrated Energy Systems Considering Hot Dry Rock Co-Generation
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作者 Hao Qi Mohamed Sharaf +2 位作者 Andres Annuk Adrian Ilinca Mohamed A.Mohamed 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第8期1387-1404,共18页
Hot dry rock(HDR)is rich in reserve,widely distributed,green,low-carbon,and has broad development potential and prospects.In this paper,a distributionally robust optimization(DRO)scheduling model for a regionally inte... Hot dry rock(HDR)is rich in reserve,widely distributed,green,low-carbon,and has broad development potential and prospects.In this paper,a distributionally robust optimization(DRO)scheduling model for a regionally integrated energy system(RIES)considering HDR co-generation is proposed.First,the HDR-enhanced geothermal system(HDR-EGS)is introduced into the RIES.HDR-EGS realizes the thermoelectric decoupling of combined heat and power(CHP)through coordinated operation with the regional power grid and the regional heat grid,which enhances the system wind power(WP)feed-in space.Secondly,peak-hour loads are shifted using price demand response guidance in the context of time-of-day pricing.Finally,the optimization objective is established to minimize the total cost in the RIES scheduling cycle and construct a DRO scheduling model for RIES with HDR-EGS.By simulating a real small-scale RIES,the results show that HDR-EGS can effectively promote WP consumption and reduce the operating cost of the system. 展开更多
关键词 Energy harvesting integrated energy systems optimum scheduling time-of-use pricing demand response geothermal energy
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Robust optimal dispatch strategy of integrated energy system considering CHP-P2G-CCS
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作者 Bin Zhang Yihui Xia Xiaotao Peng 《Global Energy Interconnection》 EI CSCD 2024年第1期14-24,共11页
Integrated energy systems(IESs)can improve energy efficiency and reduce carbon emissions,essential for achieving peak carbon emissions and carbon neutrality.This study investigated the characteristics of the CHP model... Integrated energy systems(IESs)can improve energy efficiency and reduce carbon emissions,essential for achieving peak carbon emissions and carbon neutrality.This study investigated the characteristics of the CHP model considering P2G and carbon capture systems,and a two-stage robust optimization model of the electricity-heat-gascold integrated energy system was developed.First,a CHP model considering the P2G and carbon capture system was established,and the electric-thermal coupling characteristics and P2G capacity constraints of the model were derived,which proved that the model could weaken the electric-thermal coupling characteristics,increase the electric power regulation range,and reduce carbon emissions.Subsequently,a two-stage robust optimal scheduling model of an IES was constructed,in which the objective function in the day-ahead scheduling stage was to minimize the start-up and shutdown costs.The objective function in the real-time scheduling stage was to minimize the equipment operating costs,carbon emission costs,wind curtailment,and solar curtailment costs,considering multiple uncertainties.Finally,after the objective function is linearized with a ψ-piecewise method,the model is solved based on the C&CG algorithm.Simulation results show that the proposed model can effectively absorb renewable energy and reduce the total cost of the system. 展开更多
关键词 Combined heat and power Power-to-gas Carbon capture system integrated energy system Robust optimization
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The Static Stability Region of an Integrated Electricity-Gas System Considering Voltage and Gas Pressure
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作者 Yunfei Mu Zhibin Liu +5 位作者 Xiangwei Guo Hongjie Jia Kai Hou Xiaodan Yu Bofeng Luo Hairun Li 《Engineering》 SCIE EI CAS CSCD 2024年第5期132-145,共14页
In an integrated electricity-gas system(IEGS),load fluctuations affect not only the voltage in the power system but also the gas pressure in the natural gas system.The static voltage stability region(SVSR)method is a ... In an integrated electricity-gas system(IEGS),load fluctuations affect not only the voltage in the power system but also the gas pressure in the natural gas system.The static voltage stability region(SVSR)method is a tool for analyzing the overall static voltage stability in a power system.However,in an IEGS,the SVSR boundary may be overly optimistic because the gas pressure may collapse before the voltage collapses.Thus,the SVSR method cannot be directly applied to an IEGS.In this paper,the concept of the SVSR is extended to the IEGS-static stability region(SSR)while considering voltage and gas pressure.First,criteria for static gas pressure stability in a natural gas system are proposed,based on the static voltage stability criteria in a power system.Then,the IEGS-SSR is defined as a set of active power injections that satisfies multi-energy flow(MEF)equations and static voltage and gas pressure stability constraints in the active power injection space of natural gas-fired generator units(NGUs).To determine the IEGSSSR,a continuation MEF(CMEF)method is employed to trace the boundary point in one specific NGU scheduling direction.A multidimensional hyperplane sampling method is also proposed to sample the NGU scheduling directions evenly.The obtained boundary points are further used to form the IEGSSSR in three-dimensional(3D)space via a Delaunay triangulation hypersurface fitting method.Finally,the numerical results of typical case studies are presented to demonstrate that the proposed method can effectively form the IEGS-SSR,providing a tool for IEGS online monitoring and dispatching. 展开更多
关键词 integrated electricity-gas system Static stability region Continuation multi-energy flow Multidimensional hyperplane sampling
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A dual adaptive unscented Kalman filter algorithm for SINS-based integrated navigation system
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作者 LYU Xu MENG Ziyang +4 位作者 LI Chunyu CAI Zhenyu HUANG Yi LI Xiaoyong YU Xingkai 《Journal of Systems Engineering and Electronics》 SCIE CSCD 2024年第3期732-740,共9页
In this study, the problem of measuring noise pollution distribution by the intertial-based integrated navigation system is effectively suppressed. Based on nonlinear inertial navigation error modeling, a nested dual ... In this study, the problem of measuring noise pollution distribution by the intertial-based integrated navigation system is effectively suppressed. Based on nonlinear inertial navigation error modeling, a nested dual Kalman filter framework structure is developed. It consists of unscented Kalman filter (UKF)master filter and Kalman filter slave filter. This method uses nonlinear UKF for integrated navigation state estimation. At the same time, the exact noise measurement covariance is estimated by the Kalman filter dependency filter. The algorithm based on dual adaptive UKF (Dual-AUKF) has high accuracy and robustness, especially in the case of measurement information interference. Finally, vehicle-mounted and ship-mounted integrated navigation tests are conducted. Compared with traditional UKF and the Sage-Husa adaptive UKF (SH-AUKF), this method has comparable filtering accuracy and better filtering stability. The effectiveness of the proposed algorithm is verified. 展开更多
关键词 Kalman filter dual-adaptive integrated navigation unscented Kalman filter(UKF) ROBUST
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Resilience-Oriented Load Restoration Method and Repair Strategies for Regional Integrated Electricity-Natural Gas System
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作者 Keqiang Wang Pengyang Zhao +4 位作者 Changjian Wang Zimeng Zhang Yu Zhang Jia Lu Zedong Yang 《Energy Engineering》 EI 2024年第4期1091-1108,共18页
The rising frequency of extreme disaster events seriously threatens the safe and secure operation of the regional integrated electricity-natural gas system(RIENGS).With the growing level of coupling between electric a... The rising frequency of extreme disaster events seriously threatens the safe and secure operation of the regional integrated electricity-natural gas system(RIENGS).With the growing level of coupling between electric and natural gas systems,it is critical to enhance the load restoration capability of both systems.This paper proposes a coordinated optimization strategy for resilience-enhanced RIENGS load restoration and repair scheduling and transforms it into a mixed integer second-order cone programming(MISOCP)model.The proposed model considers the distribution network reconfiguration and the coordinated repair strategy between the two systems,minimizing the total system load loss cost and repair time.In addition,a bi-directional gas flow model is used to describe the natural gas system,which can provide the RIENGS with more flexibility for load restoration during natural gas system failure.Finally,the effectiveness of the proposed approach is verified by conducting case studies on the test systems RIENGS E13-G7 and RIENGS E123-G20. 展开更多
关键词 RESILIENCE regional integrated electricity-natural gas system load restoration repair strategy
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