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Obtaining Electromagnetic Properties of Multi-Type Media in Realistic Environments:State-of-the-Art and Prospects 认领 引用 被引量：10
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作者 Guo Lantu Guan Ke +5 位作者 Liu Ting He Danping Zhang Haixia Zhu Qiuming Lu Jun Zhang Minggao 《China Communications》 SCIE EI CSCD 2025年第1期25-40,共16页
To meet the requirements of electromagnetic(EM)theory and applied physics,this study presents an overview of the state-of-the-art research on obtaining the EM properties of media and points out potential solutions tha... To meet the requirements of electromagnetic(EM)theory and applied physics,this study presents an overview of the state-of-the-art research on obtaining the EM properties of media and points out potential solutions that can break through the bottlenecks of current methods.Firstly,based on the survey of three mainstream approaches for acquiring EM properties of media,we identify the difficulties when implementing them in realistic environments.With a focus on addressing these problems and challenges,we propose a novel paradigm for obtaining the EM properties of multi-type media in realistic environments.Particularly,within this paradigm,we describe the implementation approach of the key technology,namely“multipath extraction using heterogeneous wave propagation data in multi-spectrum cases”.Finally,the latest measurement and simulation results show that the EM properties of multi-type media in realistic environments can be precisely and efficiently acquired by the methodology proposed in this study. 展开更多
关键词 electromagnetic properties of media multi-type media parameter inversion ray tracing realistic environment
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A Multi-Type Feature Fusion Network Based on Importance Weighting for Occluded Human Pose Estimation 认领 引用 被引量：1
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作者 Jiahong Jiang Nan Xia Siyao Zhou 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2025年第4期789-805,共17页
Human pose estimation is a challenging task in computer vision.Most algorithms perform well in regular scenes,but lack good performance in occlusion scenarios.Therefore,we propose a multi-type feature fusion network b... Human pose estimation is a challenging task in computer vision.Most algorithms perform well in regular scenes,but lack good performance in occlusion scenarios.Therefore,we propose a multi-type feature fusion network based on importance weighting,which consists of three modules.In the first module,we propose a multi-resolution backbone with two feature enhancement sub-modules,which can extract features from different scales and enhance the feature expression ability.In the second module,we enhance the expressiveness of keypoint features by suppressing obstacle features and compensating for the unique and shared attributes of keypoints and topology.In the third module,we perform importance weighting on the adjacency matrix to enable it to describe the correlation among nodes,thereby improving the feature extraction ability.We conduct comparative experiments on the keypoint detection datasets of common objects in Context 2017(COCO2017),COCO-Wholebody and CrowdPose,achieving the accuracy of 78.9%,67.1%and 77.6%,respectively.Additionally,a series of ablation experiments are designed to show the performance of our work.Finally,we present the visualization of different scenarios to verify the effectiveness of our work. 展开更多
关键词 Human keypoint detection human pose estimation importance weighting multi-type feature fusion occlusion environments
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Multi-type feature fusion visual navigation for asteroid landing 认领 引用
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作者 Wenbo XIU Shengying ZHU Yanjie LIU 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2025年第7期529-544,共16页
In order to address the challenges encountered in visual navigation for asteroid landing using traditional point features,such as significant recognition and extraction errors,low computational efficiency,and limited ... In order to address the challenges encountered in visual navigation for asteroid landing using traditional point features,such as significant recognition and extraction errors,low computational efficiency,and limited navigation accuracy,a novel approach for multi-type fusion visual navigation is proposed.This method aims to overcome the limitations of single-type features and enhance navigation accuracy.Analytical criteria for selecting multi-type features are introduced,which simultaneously improve computational efficiency and system navigation accuracy.Concerning pose estimation,both absolute and relative pose estimation methods based on multi-type feature fusion are proposed,and multi-type feature normalization is established,which significantly improves system navigation accuracy and lays the groundwork for flexible application of joint absolute-relative estimation.The feasibility and effectiveness of the proposed method are validated through simulation experiments through 4769 Castalia. 展开更多
关键词 Pose estimation Multi-type feature fusion Feature selection Landmark selection Normalization Absolute navigation Relative navigation Visual navigation
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Multi-type ant system algorithm for the time dependent vehicle routing problem with time windows 认领 引用 被引量：16
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作者 DENG Ye ZHU Wanhong +1 位作者 LI Hongwei ZHENG Yonghui 《Journal of Systems Engineering and Electronics》 SCIE CSCD 2018年第3期625-638,共14页
The time dependent vehicle routing problem with time windows(TDVRPTW)is considered.A multi-type ant system(MTAS)algorithm hybridized with the ant colony system(ACS)and the max-min ant system(MMAS)algorithms is propose... The time dependent vehicle routing problem with time windows(TDVRPTW)is considered.A multi-type ant system(MTAS)algorithm hybridized with the ant colony system(ACS)and the max-min ant system(MMAS)algorithms is proposed.This combination absorbs the merits of the two algorithms in solutions construction and optimization separately.In order to improve the efficiency of the insertion procedure,a nearest neighbor selection(NNS)mechanism,an insertion local search procedure and a local optimization procedure are specified in detail.And in order to find a balance between good scouting performance and fast convergence rate,an adaptive pheromone updating strategy is proposed in the MTAS.Computational results confirm the MTAS algorithm's good performance with all these strategies on classic vehicle routing problem with time windows(VRPTW)benchmark instances and the TDVRPTW instances,and some better results especially for the number of vehicles and travel times of the best solutions are obtained in comparison with the previous research. 展开更多
关键词 multi-type ant system(MTAS) time dependent vehicle routing problem with time windows(VRPTW) nearest neighbor selection(NNS)
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Multi-type sensor placement and response reconstruction for building structures: Experimental investigations 认领 引用 被引量：7
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作者 Rong-Pan Hu You-Lin Xu Sheng Zhan 《Earthquake Engineering and Engineering Vibration》 SCIE EI CSCD 2018年第1期29-46,共18页
Estimation of lateral displacement and acceleration responses is essential to assess safety and serviceability of high-rise buildings under dynamic loadings including earthquake excitations. However, the measurement i... Estimation of lateral displacement and acceleration responses is essential to assess safety and serviceability of high-rise buildings under dynamic loadings including earthquake excitations. However, the measurement information from the limited number of sensors installed in a building structure is often insufficient for the complete structural performance assessment. An integrated multi-type sensor placement and response reconstruction method has thus been proposed by the authors to tackle this problem. To validate the feasibility and effectiveness of the proposed method, an experimental investigation using a cantilever beam with multi-type sensors is performed and reported in this paper. The experimental setup is first introduced. The finite element modelling and model updating of the cantilever beam are then performed. The optimal sensor placement for the best response reconstruction is determined by the proposed method based on the updated FE model of the beam. After the sensors are installed on the physical cantilever beam, a number of experiments are carried out. The responses at key locations are reconstructed and compared with the measured ones. The reconstructed responses achieve a good match with the measured ones, manifesting the feasibility and effectiveness of the proposed method. Besides, the proposed method is also examined for the cases of different excitations and unknown excitation, and the results prove the proposed method to be robust and effective. The superiority of the optimized sensor placement scheme is finally demonstrated through comparison with two other different sensor placement schemes： the accelerometer-only scheme and non-optimal sensor placement scheme. The proposed method can be applied to high-rise buildings for seismic performance assessment. 展开更多
关键词 experimental investigation multi-type sensors inclinometer response reconstruction optimal sensor placement
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Cooperative task assignment of multiple heterogeneous unmanned aerial vehicles using a modifed genetic algorithm with multi-type genes 认领 引用 被引量：43
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作者 Deng Qibo Yu Jianqiao Wang Ningfei 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2013年第5期1238-1250,共13页
The task assignment problem of multiple heterogeneous unmanned aerial vehicles （UAVs）, concerned with cooperative decision making and control, is studied in this paper. The heterogeneous vehicles have different oper... The task assignment problem of multiple heterogeneous unmanned aerial vehicles （UAVs）, concerned with cooperative decision making and control, is studied in this paper. The heterogeneous vehicles have different operational capabilities and kinematic constraints, and carry limited resources （e.g., weapons） onboard. They are designated to perform multiple consecutive tasks cooperatively on multiple ground targets. The problem becomes much more complicated because of these terms of heterogeneity. In order to tackle the challenge, we modify the former genetic algorithm with multi-type genes to stochastically search a best solution. Genes of chromo- somes are different, and they are assorted into several types according to the tasks that must be performed on targets. Different types of genes are processed specifically in the improved genetic operators including initialization, crossover, and mutation. We also present a mirror representation of vehicles to deal with the limited resource constraint. Feasible chromosomes that vehicles could perform tasks using their limited resources under the assignment are created and evolved by genetic operators. The effect of the proposed algorithm is demonstrated in numerical simulations. The results show that it effectively provides good feasible solutions and finds an optimal one. 展开更多
关键词 Cooperative control Genetic algorithm Heterogeneous unmanned aerial vehicles Multi-type genes Task assignment
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Understanding the superior mechanical properties of Mg-3Al-Zn alloy sheets:Role of multi-type unique textures 认领 引用
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作者 Jun Xu Jun Zhao +7 位作者 Bin Jiang Wenjun Liu Hong Yang Xintao Li Yuehua Kang Nan Zhou Kaihong Zheng Fusheng Pan 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2023年第6期1104-1112,共9页
Mg-3Al-1Zn(AZ31)sheets were produced by transverse gradient extrusion(TGE)process.The flow behavior and dynamic recrystallization during extrusion were systematically analyzed.The microstructures,textures,and mechanic... Mg-3Al-1Zn(AZ31)sheets were produced by transverse gradient extrusion(TGE)process.The flow behavior and dynamic recrystallization during extrusion were systematically analyzed.The microstructures,textures,and mechanical behavior of extruded AZ31 sheet were also analyzed and compared with conventional extruded(CE)sheet.The results showed that fine grain structure and multi-type unique textures were formed in TGE sheet because of the generation of extra flow velocity along transverse direction(TD)and flow velocity gradient along extrusion direction(ED)during extrusion.The basal poles gradually deviated away normal direction(ND)from edge to center of the TGE sheet along TD,and the largest inclination angle at center region reached around 65°.Furthermore,the basal poles inclined from ED to TD 40°-63°,except for the center region of TGE sheet.The TGE sheet presented higher ductility and strain hardening exponent(n-value),but lower yield strength and Lankford value(r-value)in comparison with the CE sheet.Both the basalslip and tensile twins were easy to be activated during deformation,and the largest elongation of 41%and the lowest yield strength of 86.5 MPa were obtained for the ED-center sample in the TGE sheet. 展开更多
关键词 transverse gradient extrusion multi-type unique textures mechanical properties
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Inferring Multi-Type Birth-Death Parameters for a Structured Host Population with Application to HIV Epidemic in Africa 认领 引用
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作者 Hassan W. Kayondo Samuel Mwalili John M. Mango 《Computational Molecular Bioscience》 2019年第4期108-131,共24页
Human Immunodeficiency Virus (HIV) dynamics in Africa are purely characterised by sparse sampling of DNA sequences for individuals who are infected. There are some sub-groups that are more at risk than the general pop... Human Immunodeficiency Virus (HIV) dynamics in Africa are purely characterised by sparse sampling of DNA sequences for individuals who are infected. There are some sub-groups that are more at risk than the general population. These sub-groups have higher infectivity rates. We came up with a likelihood inference model of multi-type birth-death process that can be used to make inference for HIV epidemic in an African setting. We employ a likelihood inference that incorporates a probability of removal from infectious pool in the model. We have simulated trees and made parameter inference on the simulated trees as well as investigating whether the model distinguishes between heterogeneous and homogeneous dynamics. The model makes fairly good parameter inference. It distinguishes between heterogeneous and homogeneous dynamics well. Parameter estimation was also performed under sparse sampling scenario. We investigated whether trees obtained from a structured population are more balanced than those from a non-structured host population using tree statistics that measure tree balance and imbalance. Trees from non-structured population were more balanced basing on Colless and Sackin indices. 展开更多
关键词 HIV Likelihood Inference Multi-Type Birth-Death Process Probability of Removal Structured Population
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Study on the Effect of Multi-Type Current Transformers Hybrid Operation on Differential Protection of the Bus Based on Dynamic Simulation 认领 引用
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作者 Wenbiao Liao Zexin Zhou +2 位作者 Rongrong Zhan Yanjun Li Zhengguang Chen 《Energy and Power Engineering》 2017年第4期1-11,共11页
This paper analyzes characteristics of multi type current transformers hybrid operation for each branch of the bus and their effects on differential protection of the bus. By theoretically analyzing transmission chara... This paper analyzes characteristics of multi type current transformers hybrid operation for each branch of the bus and their effects on differential protection of the bus. By theoretically analyzing transmission characteristics of multi type current transformers and their influence factors, we study the dynamic model testing method of multi type current transformers for the bus, and design 3 kinds of testing schemes by making the equivalent model based on the field of P-level current transformer, TPY-level current transformer and electronic current transformer, and build the hybrid operation testing platform of multi type current transformers. Finally, we compare and analyze the transmission characteristics difference of multi type current transformers on the same branch and the characteristics difference of hybrid operation in two successive external faults, analyze the cause behind the differences, and put forward the corresponding improvement measures. 展开更多
关键词 Differential Protection of the Bus Multi-Type Current Transformer Hybrid Operation Dynamic Simulation Test Method Dynamic Simulation Test Platform
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Spatial-Temporal Mixture-of-Graph-Experts for Multi-Type Crime Prediction 认领 引用
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作者 Zi-Yang Wu Fan Liu +2 位作者 Jin-Dong Han Yu-Xuan Liang Hao Liu 《Journal of Computer Science & Technology》 SCIE EI CSCD 2026年第2期669-683,共15页
As various types of crimes continue to threaten public safety and economic development,predicting the occurrence of multiple types of crimes becomes increasingly vital for effective prevention measures.Although extens... As various types of crimes continue to threaten public safety and economic development,predicting the occurrence of multiple types of crimes becomes increasingly vital for effective prevention measures.Although extensive efforts have been made,most of them overlook the heterogeneity of different crime categories and fail to address the issue of imbalanced spatial distribution.In this work,we propose Spatial-Temporal Mixture-of-Graph-Experts(ST-MoGE),a framework for collective multiple-type crime prediction.To enhance the model's ability to identify diverse spatial-temporal dependencies and mitigate potential conflicts caused by spatial-temporal heterogeneity of different crime categories,we introduce a module,Mixture-of-Graph-Experts(MGE),to capture the distinctive and shared crime patterns of each crime category.Then,we propose Cross-Expert Contrastive Learning(CECL)to refine MGE and force each expert to specialize in modeling specific patterns,thereby reducing blending and redundancy.Furthermore,to address the issue of imbalanced spatial distribution,we propose a module,Hierarchical Adaptive Loss Re-Weighting(HALR),to eliminate biases and underfitting in data-scarce regions.To evaluate the effectiveness of our methods,we conduct comprehensive experiments on two real-world crime datasets and compare our results with 12 advanced baselines.The experimental results demonstrate the superiority of our methods. 展开更多
关键词 multi-type crime prediction spatio-temporal prediction mixture-of-experts
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Multi-type sensor placement and response reconstruction for structural health monitoring of long-span suspension bridges 认领 引用 被引量：16
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作者 You-Lin Xu Xiao-Hua Zhang +1 位作者 Songye Zhu Sheng Zhan 《Science Bulletin》 SCIE EI CAS CSCD 2016年第4期313-329,共17页
This study is devoted to the experimental validation of the multi-type sensor placement and response reconstruction method for structural health monitoring of long-span suspension bridges. The method for multi-type se... This study is devoted to the experimental validation of the multi-type sensor placement and response reconstruction method for structural health monitoring of long-span suspension bridges. The method for multi-type sensor placement and response reconstruction is briefly described. A test bed, comprising of a physical model and an updated finite element （P-E） model of a long-span suspension bridge is also concisely introduced. The proposed method is then applied to the test bed; the equation of motion of the test bed subject to ground motion, the objective function for sensor location optimization, the principles for mode selection and multi-type response reconstruction are established. A numerical study using the updated FE model is performed to select the sensor types, numbers, and locations. Subsequently, with the identified sensor locations and some practical considerations, fiber Bragg grating （FBG） sensors, laser displacement transducers, and accelerometers are installed on the physical bridge model. Finally, experimental investigations are conducted to validate the proposed method. The experimental results show that the reconstructed responses using the measured responses from the limited number of multitype sensors agree well with the actual bridge responses. The proposed method is validated to be feasible and effective for the monitoring of structural behavior of longspan suspension bridges. 展开更多
关键词 Long-span suspension bridges Structural behavior monitoring Multi-type sensorsMulti-type responses Experimental validation
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Day-ahead Scheduling of Multi-carrier Energy Systems with Multi-type Energy Storages and Wind Power 认领 引用 被引量：22
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作者 Rufeng Zhang Tao Jiang +4 位作者 Guoging Li Houhe Chen Xue Li Linquan Bai Hantao Cui 《CSEE Journal of Power and Energy Systems》 SCIE 2018年第3期283-292,共10页
The integration of large-scale wind power brings challenges to the operation of integrated energy systems(IES).In this paper,a day-ahead scheduling model for IES with wind power and multi-type energy storage is propos... The integration of large-scale wind power brings challenges to the operation of integrated energy systems(IES).In this paper,a day-ahead scheduling model for IES with wind power and multi-type energy storage is proposed in a scenario-based stochastic programming framework.The structure of the IES consists of electricity,natural gas,and heating networks which are all included in the model.Operational constraints for IES incorporating multi-type energy storage devices are also considered.The constraints of the electricity network,natural gas network and heating network are formulated,and non-linear constraints are linearized.The calculation method for the correlation of wind speed between wind farms based on historical data is proposed.Uncertainties of correlated wind power were represented by creating multiple representative scenarios with different probabilities,and this was done using the Latin hyper-cube sampling(LHS)method.The stochastic scheduling model is formulated as a mixed integer linear programming(MILP)problem with the objective function of minimizing the total expected operation cost.Numerical results on a modified PJM 5-bus electricity system with a seven-node natural gas system and a six-node heating system validate the proposed model.The results demonstrate that multi-type energy storage devices can help reduce wind power curtailments and improve the operational flexibility of IES. 展开更多
关键词 Multicarrier energy systems multi-type energy storage stochastic day-ahead scheduling wind power
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Equivalent model of multi-type distributed generators under faults with fast-iterative calculation method based on improved PSO algorithm 认领 引用 被引量：12
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作者 Puyu Wang Jinyuan Song +5 位作者 Fangyu Liang Fang Shi Xiangping Kong Guangen Xie Xiao-Ping Zhang Xinxin Gu 《Protection and Control of Modern Power Systems》 SCIE EI 2021年第1期371-382,共12页
There are various types of distributed generators (DGs) with different grid integration strategies. The transient characteristics of the fault currents provided by the DGs are different to those of conventional synchr... There are various types of distributed generators (DGs) with different grid integration strategies. The transient characteristics of the fault currents provided by the DGs are different to those of conventional synchronous generators. In this paper, a distribution network with multi-type DGs is investigated, including consideration of DG low-voltage ride through (LVRT). The fault current characteristics of two typical DGs, i.e. an inverter-interfaced distributed generator (IIDG) and a doubly-fed induction generator (DFIG), are analyzed, considering the specific operation modes. Based on analysis of the fault characteristics, an equivalent model of the multi-type DGs under symmetrical/asymmetrical fault conditions is established. A fast-iterative fault calculation method for enhancing the calculation efficiency while avoiding local convergence is then proposed using an improved particle swarm optimization (PSO) algorithm. A simulation system of the distribution network with multi-type DGs is established in PSCAD/EMTDC. The simulation results validate the high accuracy and calculation efficiency of the proposed calculation method of the fault components. This can assist in the settings of the protection threshold. 展开更多
关键词 Multi-type distributed generators(DGs) Fault current characteristics Equivalent model Fast-iterative calculation method Improved particle swarm optimization(PSO)
Almost sure, L1-and L2-growth behavior of supercritical multi-type continuous state and continuous time branching processes with immigration 认领 引用 被引量：1
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作者 Mátyás Barczy Sandra Palau Gyula Pap 《Science China Mathematics》 SCIE CSCD 2020年第10期2089-2116,共28页
Under a first order moment condition on the immigration mechanism,we show that an appropriately scaled supercritical and irreducible multi-type continuous state and continuous time branching process with immigration(C... Under a first order moment condition on the immigration mechanism,we show that an appropriately scaled supercritical and irreducible multi-type continuous state and continuous time branching process with immigration(CBI process)converges almost surely.If an x log(x)moment condition on the branching mechanism does not hold,then the limit is zero.If this x log(x)moment condition holds,then we prove L1 convergence as well.The projection of the limit on any left non-Perron eigenvector of the branching mean matrix is vanishing.If,in addition,a suitable extra power moment condition on the branching mechanism holds,then we provide the correct scaling for the projection of a CBI process on certain left non-Perron eigenvectors of the branching mean matrix in order to have almost sure and L1 limit.Moreover,under a second order moment condition on the branching and immigration mechanisms,we prove L2 convergence of an appropriately scaled process and the above-mentioned projections as well.A representation of the limits is also provided under the same moment conditions. 展开更多
关键词 multi-type continuous state and continuous time branching processes with immigration almost sure L1-and L2-growth behaviour
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Nonlinear stability of traveling waves for a multi-type SIS epidemic model 认领 引用 被引量：1
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作者 Mengqi Li Peixuan Weng Yong Yang 《International Journal of Biomathematics》 SCIE 2018年第1期41-60,共20页
The nonlinear stability of traveling waves for a multi-type SIS epidemic model is inves- tigated in this paper. By using the comparison principle together with the weighted energy function, we obtain the exponential s... The nonlinear stability of traveling waves for a multi-type SIS epidemic model is inves- tigated in this paper. By using the comparison principle together with the weighted energy function, we obtain the exponential stability of traveling wavefront with large wave speed. The initial perturbation around the traveling wavefront decays exponen- tially as x → -∞, but it can be arbitrarily large in other locations. 展开更多
关键词 Multi-type SIS epidemic model exponential stability large wave speed.
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我国深部多类型矿产资源协同开采路径与方向 认领 引用 被引量：1
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作者 孙焕泉 罗大清 +3 位作者 方吉超 杨攀峰 黄宁 罗璐 《中国工程科学》 EI CSCD 北大核心 2026年第3期107-122,共16页
我国战略性矿产资源紧缺、对外依存度高,推进深部多类型矿产资源协同开采对保障国家能源资源安全具有重要意义。本文聚焦多资源协同开采路径与方向,运用综合分析、多目标空间优化和典型区域重点解剖相结合的方法,深入分析了锂盐、钾盐... 我国战略性矿产资源紧缺、对外依存度高,推进深部多类型矿产资源协同开采对保障国家能源资源安全具有重要意义。本文聚焦多资源协同开采路径与方向,运用综合分析、多目标空间优化和典型区域重点解剖相结合的方法,深入分析了锂盐、钾盐、氦气、砂岩型铀矿、铷盐和锶盐等6种矿产资源的分布特征,探讨了其与油气、地热资源耦合开采机制,剖析了我国深部多类型矿产资源协同开采的优势和面临的挑战;将多资源共生关系纳入开采序列决策,构建了“时空适配-效益协同”双维优化方法,突破传统单一资源开发局限。通过多源协同立体勘探、多维度综合评价、双维度协同开发,提出了资源富集区优先布局、产业链协同发展的实施路径;创新搭建了油气、地热与多类型矿产协同开采的具体场景,制定了不同场景下提高资源利用率、降低开采成本的技术路线。最后,明确示范项目和工业化潜力,形成产业链集中、协调、有序发展的战略布局,为深部多类型矿产资源一体化开发提供可落地的理论支撑与实践范式。 展开更多
关键词 多类型资源 深部矿产 协同开采 综合利用
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面向可再生能源消纳的多类型建筑群共享储电柔性调控模型研究 认领 引用 被引量：1
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作者 颜哲 杨建荣 +3 位作者 戴珂 张永明 张改景 江燕 《工业建筑》 CAS 2026年第1期106-114,共9页
建筑业作为能源消耗与碳排放的核心领域,其绿色低碳转型是双碳目标实现的关键。然而,光伏、风电等可再生能源的间歇性与波动性,加之传统独立储电模式存在投资高、利用率低、调度灵活不足等缺陷,严重制约了建筑领域可再生能源消纳与能源... 建筑业作为能源消耗与碳排放的核心领域,其绿色低碳转型是双碳目标实现的关键。然而,光伏、风电等可再生能源的间歇性与波动性,加之传统独立储电模式存在投资高、利用率低、调度灵活不足等缺陷,严重制约了建筑领域可再生能源消纳与能源系统优化。聚焦居住、办公、工业三类典型建筑,基于其异质用能特性,构建共享储电柔性调控模型,设计差异化调度策略,并通过案例仿真对比无储电、独立储电、共享储电三类模式的运行效果。结果表明:共享储电模式可实现可再生能源全额消纳,解决无储电模式下的弃电问题;与独立储电模式相比,其在运行成本基本持平的前提下,显著降低储电投资成本,且随着光伏装机容量提升,容量降低率呈上升趋势,最高可达40%以上;共享储电通过跨建筑协同调度,充分发挥负荷互补优势,提升了能源系统稳定性与资源利用效率。 展开更多
关键词 共享储电 柔性调控 多类型建筑群 可再生能源消纳
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基于MILP和NSGA-II的多类型储能协同调度优化 认领 引用 被引量：1
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作者 冯春贤 王文学 +4 位作者 王一峰 张飞飞 袁龙 范志昊 陈衡 《热力发电》 CAS CSCD 北大核心 2026年第2期180-192,共13页
【目的】为应对高比例新能源接入电网对灵活性与经济性的需求,提出一种面向峰谷电价与新能源波动的多类型储能协同调度优化模型及调度策略。【方法】基于混合整数线性规划算法(MILP)与非支配排序多目标遗传算法(NSGA-II),构建以系统总... 【目的】为应对高比例新能源接入电网对灵活性与经济性的需求,提出一种面向峰谷电价与新能源波动的多类型储能协同调度优化模型及调度策略。【方法】基于混合整数线性规划算法(MILP)与非支配排序多目标遗传算法(NSGA-II),构建以系统总成本最低和新能源消纳率最高为双目标的优化调度模型,并通过河北地区不同季节典型日的负荷与风光出力数据验证模型的经济性与消纳效果。【结果】结果表明:该模型具有较好的鲁棒性,能够适应风光与负荷波动;春季最佳储能出力为3 000 MW,夏季、秋季、冬季均为2 000 MW,各季节特征日风光消纳率均保持在85%以上,系统总成本控制在15 000元水平。【结论】研究通过融合多季节场景、多类型储能及多目标优化,实现了经济性与新能源消纳水平的协同提升,有效增强了电网灵活性并降低了弃风弃光率。 展开更多
关键词 多类型储能 优化调度 MILP算法 NSGA-II算法 新能源消纳
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湖底扇源-汇响应特征与沉积模式——以渤海湾盆地辽中凹陷西斜坡旅大10-6油气田为例 认领 引用
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作者 官大勇 王启明 +2 位作者 张宏国 马正武 王志萍 《天然气工业》 EI CAS CSCD 北大核心 2026年第6期43-54,共12页
渤海湾盆地辽中凹陷构造及古地貌复杂、多物源供给,导致湖底扇成因机制与沉积响应认识不清,制约该盆地西斜坡岩性油气藏评价进展。为此,以辽中凹陷西斜坡旅大10-6油气田古近系渐新统东营组三段(东三段)湖底扇为例,综合运用岩心、测井、... 渤海湾盆地辽中凹陷构造及古地貌复杂、多物源供给,导致湖底扇成因机制与沉积响应认识不清,制约该盆地西斜坡岩性油气藏评价进展。为此,以辽中凹陷西斜坡旅大10-6油气田古近系渐新统东营组三段(东三段)湖底扇为例,综合运用岩心、测井、三维地震及分析测试资料,在高精度层序格架约束下,系统开展了物源体系、搬运通道、坡折带之间的耦合研究,分析了源-汇系统特征及演化过程,阐明了湖底扇沉积响应特征与平面展布规律,建立了断陷湖盆内外物源转换下的斜坡带湖底扇沉积模式。研究结果表明:①东三段沉积期存在盆内/外物源转换,低位域以盆内近源沉积为主,湖泛域与高位域形成“链状岛”通道,盆外远源三角洲提供物源,多类型坡折带与源汇格局共同控制湖底扇发育;②湖底扇具有典型水下重力流沉积特征,继承三角洲前缘沉积特点,储层物性好,湖底扇构型在地震剖面上有单轴反射、丘状反射、“蠕虫状”反射3类响应类型,其中丘状反射的地震响应富砂性最好;③湖底扇呈“平面成串、阶梯后退、多期复合”分布,舌形扇体含砂率高,被厚层湖相泥岩包裹,储盖组合良好,具近源成藏优势,是有利勘探类型。结论认为,辽中凹陷西斜坡东三段发育大型多期叠置的湖底扇沉积是多因素协同的结果,受盆内外物源转换及差异供给、多类型坡折以及相对湖平面变化的共同影响;研究揭示的湖底扇源-汇沉积响应特征以及“链状岛”地貌调控下的远源三角洲越溢型湖底扇沉积模式,对该盆地其他地区湖底扇分布预测以及勘探部署具有指导意义。 展开更多
关键词 “链状岛”通道 多类型坡折 湖底扇 源-汇格局 沉积模式 辽中凹陷
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考虑电动车与无人机充电的协同配送问题研究 认领 引用
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作者 辜勇 李雨馨 +2 位作者 乔磊 陈焰 王艺 《重庆师范大学学报（自然科学版）》 CAS 北大核心 2026年第2期57-74,共18页
在电子商务与低空经济蓬勃发展的背景下,传统的配送模式已难以满足当前需求,电动车与无人机协同配送因具有灵活性和环保性而逐渐受到关注。立足行业现实需求与发展趋势,面向城市区域实际配送场景,以考虑电动车与无人机充电的协同配送问... 在电子商务与低空经济蓬勃发展的背景下,传统的配送模式已难以满足当前需求,电动车与无人机协同配送因具有灵活性和环保性而逐渐受到关注。立足行业现实需求与发展趋势,面向城市区域实际配送场景,以考虑电动车与无人机充电的协同配送问题为研究对象,建立了以总成本最小化为优化目标的数学模型,并设计了基于自适应大邻域搜索的鲸鱼优化算法(WOA-ALNS)求解。通过在多组算例上进行的对比实验结果表明,与传统的鲸鱼优化算法和人工蜂群算法相比,WOA-ALNS在求解质量上平均提升了19%~30%,且收敛速度更快,验证了所提模型和改进算法的有效性。进一步对电动车和无人机的充电电量上限与额定最低电量进行敏感性分析,为企业提供了参考建议。研究为物流配送行业提供了绿色解决方案,为解决“最后一公里”配送难题提供了创新思路,兼具理论价值和实践意义。 展开更多
关键词 电动车充电 无人机充电 协同配送 WOA-ALNS算法 多机型
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